http://www.powtran.net/faq.asp
How To Maintain a VFD
Do you know how to maintain Variable Frequency Drives (VFDs)? Doing so is easier than you might think. By integrating some simple, logical steps into your preventative maintenance program, you can ensure your drives provide many years of trouble-free service. Before looking at those steps, let's quickly review what is a VFD and how it works?
A Quick Overview
A VFD controls the speed, torque and direction of an AC Induction motor. It takes fixed voltage and frequency AC input and converts it to a variable voltage and frequency AC output. See Training Note "What is a VFD?" for a more detailed description of VFD concepts and operating principles. In very small VFDs, a single power pack unit may contain the converter and inverter.
Fairly involved control circuitry coordinates the switching of power devices, typically through a control board that dictates the firing of power components in the proper sequence. A microprocessor or Digital Signal Processor (DSP) meets all the internal logic and decision requirements.
From this description, you can see a VFD is basically a computer and power supply. And the same safety and equipment precautions you'd apply to a computer and to a power supply apply here. VFD maintenance requirements fall into three basic categories:
keep it clean;
keep it dry; and
keep the connections tight.
Let's look at each of these.
Keep it Clean
Most VFDs fall into the NEMA 1 category (side vents for cooling airflow) or NEMA 12 category (sealed, dust-tight enclosure). Drives that fall in the NEMA 1 category are susceptible to dust contamination. Dust on VFD hardware can cause a lack of airflow, resulting in diminished performance from heat sinks and circulating fans (Photo 1).
Photo 1, Fan Injecting Dust into Drive Enclosure
Dust on an electronic device can cause malfunction or even failure. Dust absorbs moisture, which also contributes to failure. Periodically spraying air through the heat sink fan is a good PM measure. Discharging compressed air into a VFD is a viable option in some environments, but typical plant air contains oil and water. To use compressed air for cooling, you must use air that is oil-free and dry or you are likely to do more harm than good. That requires a specialized, dedicated, and expensive air supply. And you still run the risk of generating electrostatic charges (ESD).
A non-static generating spray or a reverse-operated ESD vacuum will reduce static build-up. Common plastics are prime generators of static electricity. The material in ESD vacuum cases and fans is a special, non-static generating plastic. These vacuums, and cans of non-static generating compressed air, are available through companies that specialize in static control equipment.
Keep it Dry
In Photo 2 you can see what happened to a control board periodically subjected to a moist environment. Initially, this VFD was wall-mounted in a clean, dry area of a mechanical room and moisture was not a problem. However, as is often the case, a well-meaning modification led to problems.
In this example, an area of the building required a dehumidifier close to the mechanical room. Since wall space was available above the VFD, this is where the dehumidifier went. Unfortunately, the VFD was a NEMA 1 enclosure style (side vents and no seal around the cover). The obvious result was water dripping from the dehumidifier into the drive. In six months, the VFD accumulated enough water to produce circuit board corrosion.
Photo 2, Corrosion on Board Traces Caused by Moisture
What about condensation? Some VFD manufacturers included a type of "condensation protection" on earlier product versions. When the mercury dipped below 32 degrees Fahrenheit, the software logic would not allow the drive to start. VFDs seldom offer this protection today. If you operate the VFD all day every day, the normal radiant heat from the heatsink should prevent condensation. Unless the unit is in continuous operation, use a NEMA 12 enclosure and thermostatically controlled space heater if you locate it where condensation is likely.
Keep Connections Tight
While this sounds basic, checking connections is a step many people miss or do incorrectly - and the requirement applies even in clean rooms. Heat cycles and mechanical vibration can lead to sub-standard connections, as can standard PM practices. Retorquing screws is not a good idea, and further tightening an already tight connection can ruin the connection (see Sidebar).
Bad connections eventually lead to arcing. Arcing at the VFD input could result in nuisance over voltage faults, clearing of input fuses, or damage to protective components. Arcing at the VFD output could result in over-current faults, or even damage to the power components. Photos 3 and 4 show what can happen.
Loose control wiring connections can cause erratic operation. For example, a loose S|||This sounds like a laboratory project for physics or engineering. You might try to ask in engineering especially, as this is a very complex and long topic you've asked.
Tuesday, December 6, 2011
What methods and tools would have used to integrate and verify the compatibility of data bus equipment with?
the Collins system ?
[Compatibility testing and integration of DAIS multiplex bus equipments
Barber, G. W.; Rich, B. A.
In: NAECON '77; Proceedings of the National Aerospace and Electronics Conference, Dayton, Ohio, May 17-19, 1977. (A78-15551 04-33) New York, Institute of Electrical and Electronics Engineers, Inc., 1977, p. 743-748.
This paper describes the methods and tools to be used to integrate and verify compatibility of data bus equipment with the Digital Avionics Information System (DAIS) multiplex data bus. This includes definitions of DAIS multiplex bus compatibility, integration sequences, integration test software and test procedures. DAIS multiplex bus compatibility is defined for electrical, functional and system protocol considerations. The integration sequences described are stand alone, multiple unit and system level test. The integration test software described consists of a command generation program and the bus equipment diagnostic software. The test procedures describe how the test software is used at each stage of integration.
Keywords: AVIONICS, CHANNELS (DATA TRANSMISSION), DIGITAL SYSTEMS, ELECTRONIC EQUIPMENT TESTS, INFORMATION SYSTEMS, MULTIPLEXING, COMMAND AND CONTROL, COMPATIBILITY, COMPUTER SYSTEMS DESIGN, REMOTE CONSOLES]
Source(s):
http://adsabs.harvard.edu/abs/1977naec.conf..743B|||BUS COMPATIBILITY TESTER would help a bit.
[Compatibility testing and integration of DAIS multiplex bus equipments
Barber, G. W.; Rich, B. A.
In: NAECON '77; Proceedings of the National Aerospace and Electronics Conference, Dayton, Ohio, May 17-19, 1977. (A78-15551 04-33) New York, Institute of Electrical and Electronics Engineers, Inc., 1977, p. 743-748.
This paper describes the methods and tools to be used to integrate and verify compatibility of data bus equipment with the Digital Avionics Information System (DAIS) multiplex data bus. This includes definitions of DAIS multiplex bus compatibility, integration sequences, integration test software and test procedures. DAIS multiplex bus compatibility is defined for electrical, functional and system protocol considerations. The integration sequences described are stand alone, multiple unit and system level test. The integration test software described consists of a command generation program and the bus equipment diagnostic software. The test procedures describe how the test software is used at each stage of integration.
Keywords: AVIONICS, CHANNELS (DATA TRANSMISSION), DIGITAL SYSTEMS, ELECTRONIC EQUIPMENT TESTS, INFORMATION SYSTEMS, MULTIPLEXING, COMMAND AND CONTROL, COMPATIBILITY, COMPUTER SYSTEMS DESIGN, REMOTE CONSOLES]
Source(s):
http://adsabs.harvard.edu/abs/1977naec.conf..743B|||BUS COMPATIBILITY TESTER would help a bit.
Car Stereo Problem - Sound loses volume, shuts down for a second, and then ramps up again?
I am attempting to fix my girlfriends car stereo. She has a 03 Toyota Corrolla, her friend installed a Blaupunkt cd player not sure the model I apologize, the problem is that you turn it on, and for a short while 10-15 minutes it run perfectly fine. Then the volume drops to a barley audible level, then the radio sounds like it clicks off for a second, and then is the voulme is extremely high. My one theory is that it may be that dirt has gotten in the inside, the unit did sit in a the trunk a while before it was installed. It interferes with the electronic field of the radio in the volume control, and shuts off due to a lack of a field, then shoots more power to it causing it be very loud, and then repeats that cycle till you turn it off.
Today I was going to try to get some non-conductive cleaner to open it and clean the head unit's insides. the second thing I was going to try is to is make sure all the wires are connected well.
Am I crazy, or does this sound ok?|||Hi
Is the unit new if so return it for a refund replacement..
If the sound dies then comes back loud it may be a cross wired on the speakers. Check to ake sure that the speakes are wired correctly.. Also check that the unit is wired correctly.. it could be pulling a lot of power .. over heating shutting down then restarting.. Could also be a short in the wiring....
But really it sounds like a faulty Unit.
Please post whether its just a problem when you se the Cd or if its the same with the radio.....
Also if CD does it do the same with all cds or certain ones... ( My cd player in the car had peoblems with a coupl of very lightly scratched CDs but was ok with badly scratched ones. )
I had to use one of those cd repair kits......|||most times i have seen this it is moisture on a circuit board
Today I was going to try to get some non-conductive cleaner to open it and clean the head unit's insides. the second thing I was going to try is to is make sure all the wires are connected well.
Am I crazy, or does this sound ok?|||Hi
Is the unit new if so return it for a refund replacement..
If the sound dies then comes back loud it may be a cross wired on the speakers. Check to ake sure that the speakes are wired correctly.. Also check that the unit is wired correctly.. it could be pulling a lot of power .. over heating shutting down then restarting.. Could also be a short in the wiring....
But really it sounds like a faulty Unit.
Please post whether its just a problem when you se the Cd or if its the same with the radio.....
Also if CD does it do the same with all cds or certain ones... ( My cd player in the car had peoblems with a coupl of very lightly scratched CDs but was ok with badly scratched ones. )
I had to use one of those cd repair kits......|||most times i have seen this it is moisture on a circuit board
Military survey on cohesion please take it?
if you currently doing your years in active or inactive years after active please fill out,if your retired and not doing your inactive years please dont fill out
First of all, on behave of all students of Buena Vista University in Fort Dodge, Iowa we would like to thank you for your service for us and this great country. Your duty and sacrifice means to a lot to us, so keep the good work.
At Buena Vista University as students, we are conducting a survey on the cohesion of military units and we would be honored if take this survey for us. Providing information on this survey is voluntary. There is no penalty if you choose not to respond. However, maximum participation is encouraged so that the data will be complete and representative. Your survey instrument will be treated as confidential. Identifying information will be used only by persons engaged in, and for the purposes of, the survey
Cohesion in Military Units
1.Which area of the armed services are you a member of?
a.Army
b.Navy
c.Air Forces
d.Marines
2.What is your grade?
a.E-1 to E-3 f. Warrant Officer
b.E-4 g. O-1 to O-2
c.E-5 h. O-3
d.E-6 i. O-4
e.E-7 to E-9 j.O-5 and above
3.What category does your occupation fall?
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
b.Electronic Equipment Repair
c.Communications and Intelligence Specialists
d.Medical and Dental Specialists
e.Other Technical and Allied Specialists, including photography, drafting, surveying, mapping, weather, ordinance disposal and diving, scientific and engineering aides, musicians
f.Administrative Specialists and Clerks
g.Electrical/Mechanical Equipment Repair
h.Craft workers, including metal working, construction, utilities, lithography, gas and fuel production, fabric, leather and rubber repair, marine operating crafts, fire fighting, and damage control
4.Are you (mark only one)
a.Hispanic
b.Black
c.White
d.Other
5.What is the highest grade of school that you have completed?
a.High school, not graduate
b.High school diploma or GED
c.Associate鈥檚 or other two year degree
d.Bachelor鈥檚 degree
e.Graduate Study or graduate Degree
6.What is your gender?
a.Male
b.Female
To be continued...
The rest of the survey...
7.If currently married or in relationship, is your spouse鈥?br>
a.On active military duty?
b.A civilian, but formally in the military?
c.A civilian, never in military?
d.N/A, I am single
8.How long have you been serving in the military?
Years_____Months_____
9.Have you served in the following operations (check all that apply)?
__ Operation Just Cause in Panama
__ Operations Desert Storm/Shield
__ Operation Joint Task Force hurricane Andrew or Katrina in Florida and Georgia
__ Operation Restore Hope in Somalia
__ Operation Able Sentry in Macedonia
__ Operation Uphold Democracy in Haiti
__ Operation Joint Endeavor in Bosnia
__ Other
10.Would you like to stay in military until retirement?
a.Yes
b.No
c.Not sure
11.Are their members of the opposite sex serving in your unit?
a.Yes
b.No
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit.
b.We are a loosely cohesive unit.
c.We are divided into conflicting groups.
d.Gender differences weaken cohesiveness.
14.Do you think men and women should be segregated during basic training, or integrated?
a.Segregated for both enlisted and officers
b.Segregated for enlisted, but integrated officers
c.Integrated for enlisted, but segregated for officers
d.Integrated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
a.We should try to assign women evenly across units.
b.We should try to assign women only to some units so there will be more of them on each sight.
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
To be continued...
The rest of the survey:
16.Do you believe women are treated differently by your commanding officer?
a.Yes
b.No
17.Do you believe you have been treated differently by your coworkers because of gender?
a. Yes
b. No
18. If you believe you have been treated differently, how (select all that apply)?
a. I have received more mentoring/instruction/support than opposite gender.
b. I have received less mentoring/instruction/ support than opposite gender.
c. I have been given more dirty work.
d. I have been given less dirty work.
e. Others pay more attention to me and single me out.
f. Others pay less attention to me and ignore me.
g. I am harassed or teased because of my gender.
h. More is expected of me than the opposite gender.
i. Less is expected of me that the opposite gender.
j. I tend to get better assignments than the opposite gender.
k. I tend to get worse assignments than the opposite gender.
l. I tend to receive overly positive work evaluations.
m. I tend to receive overly negative work evaluations.
n. I have a better chance of being promoted than the opposite gender.
o. I have a less chance of being promoted than the opposite gender.
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
c.I think that women should be treated exactly like men and serve in the combat arms just like men.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry a b c
Armor a b c
Submarines a b c
Special Forces a b c
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
a.Yes
b.No
c.If yes, please explain:
Thanks for taking the survey...|||1.Which area of the armed services are you a member of?
a.Army
2.What is your grade?
O-1
3.What category does your occupation fall?
military police
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
4.Are you (mark only one)
c.White
5.What is the highest grade of school that you have completed?
bachelors
6.What is your gender?
a.Male
To be continued...
The rest of the survey...
7.If currently married or in relationship, is your spouse鈥?br>
d.N/A, I am single
8.How long have you been serving in the military?
Years 2
9.Have you served in the following operations (check all that apply)?
none
10.Would you like to stay in military until retirement?
c.Not sure
11.Are their members of the opposite sex serving in your unit?
a. yes
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit.
14.Do you think men and women should be segregated during basic training, or integrated?
d.Integrated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
To be continued...
The rest of the survey:
16.Do you believe women are treated differently by your commanding officer?
b.No
17.Do you believe you have been treated differently by your coworkers because of gender?
a. Yes
18. If you believe you have been treated differently, how (select all that apply)?
N/A
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry a
Armor a
Submarines b
Special Forces a
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
a.Yes
c.If yes, please explain: Sexual herrasment is a carreer ender, especally as an officer or NCO|||1.Which area of the armed services are you a member of?
a.Army
b.Navy
c.Air Forces
d.Marines(x)
2.What is your grade?
a.E-1 to E-3 f. Warrant Officer
b.E-4 g. O-1 to O-2
c.E-5 h. O-3(x)
d.E-6 i. O-4
e.E-7 to E-9 j.O-5 and above
3.What category does your occupation fall?
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
b.Electronic Equipment Repair
c.Communications and Intelligence Specialists
d.Medical and Dental Specialists
e.Other Technical and Allied Specialists, including photography, drafting, surveying, mapping, weather, ordinance disposal and diving, scientific and engineering aides, musicians
f.Administrative Specialists and Clerks
g.Electrical/Mechanical Equipment Repair(x)
h.Craft workers, including metal working, construction, utilities, lithography, gas and fuel production, fabric, leather and rubber repair, marine operating crafts, fire fighting, and damage control
4.Are you (mark only one)
a.Hispanic
b.Black
c.White
d.Other (x)
5.What is the highest grade of school that you have completed?
a.High school, not graduate
b.High school diploma or GED(x)
c.Associate鈥檚 or other two year degree
d.Bachelor鈥檚 degree
e.Graduate Study or graduate Degree
6.What is your gender?
a.Male(x)
b.Female
To be continued...
The rest of the survey...
7.If currently married or in relationship, is your spouse鈥?br>
a.On active military duty?
b.A civilian, but formally in the military?
c.A civilian, never in military?(x)
d.N/A, I am single
8.How long have you been serving in the military?
Years__4___Months_____
9.Have you served in the following operations (check all that apply)?
__ Operation Just Cause in Panama
_x_ Operations Desert Storm/Shield
__ Operation Joint Task Force hurricane Andrew or Katrina in Florida and Georgia
__ Operation Restore Hope in Somalia
__ Operation Able Sentry in Macedonia
__ Operation Uphold Democracy in Haiti
__ Operation Joint Endeavor in Bosnia
__x Other
10.Would you like to stay in military until retirement?
a.Yes
b.No(x)
c.Not sure
11.Are their members of the opposite sex serving in your unit?
a.Yes(x)
b.No
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.(x)
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit(x).
b.We are a loosely cohesive unit.
c.We are divided into conflicting groups.
d.Gender differences weaken cohesiveness.
14.Do you think men and women should be segregated during basic training, or integrated?
a.Segregated for both enlisted and officers
b.Segregated for enlisted, but integrated officers
c.Integrated for enlisted, but segregated for officers
d.Integrated for both enlisted and officers(x)
15.When women are integrated into previously all-male units, how should they be assigned?
a.We should try to assign women evenly across units.
b.We should try to assign women only to some units so there will be more of them on each sight.
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.(x)
To be continued...
The rest of the survey:
16.Do you believe women are treated differently by your commanding officer?
a.Yes(x)
b.No
17.Do you believe you have been treated differently by your coworkers because of gender?
a. Yes
b. No(x)
18. If you believe you have been treated differently, how (select all that apply)?
a. I have received more mentoring/instruction/support than opposite gender.
b. I have received less mentoring/instruction/ support than opposite gender.
c. I have been given more dirty work.
d. I have been given less dirty work.
e. Others pay more attention to me and single me out.
f. Others pay less attention to me and ignore me.
g. I am harassed or teased because of my gender.
h. More is expected of me than the opposite gender.
i. Less is expected of me that the opposite gender.
j. I tend to get better assignments than the opposite gender.
k. I tend to get worse assignments than the opposite gender.
l. I tend to receive overly positive work evaluations.(x)
m. I tend to receive overly negative work evaluations.
n. I have a better chance of being promoted than the opposite gender.
o. I have a less chance of being promoted than the opposite gender.
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
c.I think that women should be treated exactly like men and serve in the combat arms just like men.(x)
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.(x)
Infantry a b c
Armor a b c
Submarines a b c
Special Forces a b c
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
a.Yes
b.No(x)
c.If yes, please explain:|||"There is no penalty if you choose not to respond."
Why would you even put this on your question? Even if there WERE a penalty, how would it be enforced? Since it cannot be, what value does this statement have?
In any case, what is the purpose of such a "poll"? This is more about women's role in the military and much less about unit cohesion.
The first half deals with personal information, with the intent to segregate answers by category, I assume.
The other half deals with women in the military. Plain and simple, women do not belong in front line (all male) units of any kind at any time, but can serve in all other support and service support functions.
Furthermore, women and men are not equal in ability or the same in physiology and psychology, and should not be considered interchangeable. We absolutely must consider gender when assigning personnel, as this has a bearing on how each person might perform and affect the rest of the unit.
I hope, providing this survey is even real, that you come to the conclusion that men and women are different, should be different, and that it is these differences that make us who we are.
...ah, yes, and you're welcome.|||What kind of penalty would there be if there WAS a penalty for not responding. How would you know who did NOT respond any way? YOU'RE IN COLLEGE?
AZ A COLIG STUDANT YOU NIED TO USE SPEL CHEK.
AHAHAHAOHOHOHOH
How many more times are you going to post this?
(USN, retired and damned proud!)|||1.Which area of the armed services are you a member of?
a.Army
2.What is your grade?
a.E-1 to E-3 f. Warrant Officer
3.What category does your occupation fall?
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
4.Are you (mark only one)
c.White
5.What is the highest grade of school that you have completed?
a.High school, not graduate
b.High school diploma or GED
6.What is your gender?
a.Male
7.If currently married or in relationship, is your spouse鈥?br>
d.N/A, I am single
8.How long have you been serving in the military?
Years_____Months 6
9.Have you served in the following operations (check all that apply)?
__ Operation Just Cause in Panama
__ Operations Desert Storm/Shield
__ Operation Joint Task Force hurricane Andrew or Katrina in Florida and Georgia
__ Operation Restore Hope in Somalia
__ Operation Able Sentry in Macedonia
__ Operation Uphold Democracy in Haiti
__ Operation Joint Endeavor in Bosnia
__ Other
10.Would you like to stay in military until retirement?
b.No
11.Are their members of the opposite sex serving in your unit?
b. no
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
(ALL OF THE ABOVE)
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit.
14.Do you think men and women should be segregated during basic training, or integrated?
d.Integrated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
16.Do you believe women are treated differently by your commanding officer?
a.Yes
17.Do you believe you have been treated differently by your coworkers because of gender?
b. No
18. If you believe you have been treated differently, how (select all that apply)?
k. I tend to get worse assignments than the opposite gender.
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry b
Armor a
Submarines a
Special Forces a
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
b.No|||1.Which area of the armed services are you a member of?
c.Air Forces
2.What is your grade?
a.E-1 to E-3
3.What category does your occupation fall?
e.Other Technical and Allied Specialists, including photography, drafting, surveying, mapping, weather, ordinance disposal and diving, scientific and engineering aides, musicians
4.Are you (mark only one)
a.Hispanic
5.What is the highest grade of school that you have completed?
c.Associate鈥檚 or other two year degree
6.What is your gender?
a.Male
7.If currently married or in relationship, is your spouse鈥?br>
c.A civilian, never in military?
8.How long have you been serving in the military?
Years 1 Months 5
9.Have you served in the following operations (check all that apply)?
10.Would you like to stay in military until retirement?
b.No
11.Are their members of the opposite sex serving in your unit?
a.Yes
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
13.How would you describe the cohesiveness of your unit?
b.We are a loosely cohesive unit.
14.Do you think men and women should be segregated during basic training, or integrated?
a.Segregated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
16.Do you believe women are treated differently by your commanding officer?
a.Yes
17.Do you believe you have been treated differently by your coworkers because of gender?
b. No
18. If you believe you have been treated differently, how
19.Which of the following options comes closet to your opinion?
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry b
Armor bc
Submarines b
Special Forces a
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
b.No
First of all, on behave of all students of Buena Vista University in Fort Dodge, Iowa we would like to thank you for your service for us and this great country. Your duty and sacrifice means to a lot to us, so keep the good work.
At Buena Vista University as students, we are conducting a survey on the cohesion of military units and we would be honored if take this survey for us. Providing information on this survey is voluntary. There is no penalty if you choose not to respond. However, maximum participation is encouraged so that the data will be complete and representative. Your survey instrument will be treated as confidential. Identifying information will be used only by persons engaged in, and for the purposes of, the survey
Cohesion in Military Units
1.Which area of the armed services are you a member of?
a.Army
b.Navy
c.Air Forces
d.Marines
2.What is your grade?
a.E-1 to E-3 f. Warrant Officer
b.E-4 g. O-1 to O-2
c.E-5 h. O-3
d.E-6 i. O-4
e.E-7 to E-9 j.O-5 and above
3.What category does your occupation fall?
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
b.Electronic Equipment Repair
c.Communications and Intelligence Specialists
d.Medical and Dental Specialists
e.Other Technical and Allied Specialists, including photography, drafting, surveying, mapping, weather, ordinance disposal and diving, scientific and engineering aides, musicians
f.Administrative Specialists and Clerks
g.Electrical/Mechanical Equipment Repair
h.Craft workers, including metal working, construction, utilities, lithography, gas and fuel production, fabric, leather and rubber repair, marine operating crafts, fire fighting, and damage control
4.Are you (mark only one)
a.Hispanic
b.Black
c.White
d.Other
5.What is the highest grade of school that you have completed?
a.High school, not graduate
b.High school diploma or GED
c.Associate鈥檚 or other two year degree
d.Bachelor鈥檚 degree
e.Graduate Study or graduate Degree
6.What is your gender?
a.Male
b.Female
To be continued...
The rest of the survey...
7.If currently married or in relationship, is your spouse鈥?br>
a.On active military duty?
b.A civilian, but formally in the military?
c.A civilian, never in military?
d.N/A, I am single
8.How long have you been serving in the military?
Years_____Months_____
9.Have you served in the following operations (check all that apply)?
__ Operation Just Cause in Panama
__ Operations Desert Storm/Shield
__ Operation Joint Task Force hurricane Andrew or Katrina in Florida and Georgia
__ Operation Restore Hope in Somalia
__ Operation Able Sentry in Macedonia
__ Operation Uphold Democracy in Haiti
__ Operation Joint Endeavor in Bosnia
__ Other
10.Would you like to stay in military until retirement?
a.Yes
b.No
c.Not sure
11.Are their members of the opposite sex serving in your unit?
a.Yes
b.No
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit.
b.We are a loosely cohesive unit.
c.We are divided into conflicting groups.
d.Gender differences weaken cohesiveness.
14.Do you think men and women should be segregated during basic training, or integrated?
a.Segregated for both enlisted and officers
b.Segregated for enlisted, but integrated officers
c.Integrated for enlisted, but segregated for officers
d.Integrated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
a.We should try to assign women evenly across units.
b.We should try to assign women only to some units so there will be more of them on each sight.
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
To be continued...
The rest of the survey:
16.Do you believe women are treated differently by your commanding officer?
a.Yes
b.No
17.Do you believe you have been treated differently by your coworkers because of gender?
a. Yes
b. No
18. If you believe you have been treated differently, how (select all that apply)?
a. I have received more mentoring/instruction/support than opposite gender.
b. I have received less mentoring/instruction/ support than opposite gender.
c. I have been given more dirty work.
d. I have been given less dirty work.
e. Others pay more attention to me and single me out.
f. Others pay less attention to me and ignore me.
g. I am harassed or teased because of my gender.
h. More is expected of me than the opposite gender.
i. Less is expected of me that the opposite gender.
j. I tend to get better assignments than the opposite gender.
k. I tend to get worse assignments than the opposite gender.
l. I tend to receive overly positive work evaluations.
m. I tend to receive overly negative work evaluations.
n. I have a better chance of being promoted than the opposite gender.
o. I have a less chance of being promoted than the opposite gender.
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
c.I think that women should be treated exactly like men and serve in the combat arms just like men.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry a b c
Armor a b c
Submarines a b c
Special Forces a b c
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
a.Yes
b.No
c.If yes, please explain:
Thanks for taking the survey...|||1.Which area of the armed services are you a member of?
a.Army
2.What is your grade?
O-1
3.What category does your occupation fall?
military police
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
4.Are you (mark only one)
c.White
5.What is the highest grade of school that you have completed?
bachelors
6.What is your gender?
a.Male
To be continued...
The rest of the survey...
7.If currently married or in relationship, is your spouse鈥?br>
d.N/A, I am single
8.How long have you been serving in the military?
Years 2
9.Have you served in the following operations (check all that apply)?
none
10.Would you like to stay in military until retirement?
c.Not sure
11.Are their members of the opposite sex serving in your unit?
a. yes
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit.
14.Do you think men and women should be segregated during basic training, or integrated?
d.Integrated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
To be continued...
The rest of the survey:
16.Do you believe women are treated differently by your commanding officer?
b.No
17.Do you believe you have been treated differently by your coworkers because of gender?
a. Yes
18. If you believe you have been treated differently, how (select all that apply)?
N/A
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry a
Armor a
Submarines b
Special Forces a
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
a.Yes
c.If yes, please explain: Sexual herrasment is a carreer ender, especally as an officer or NCO|||1.Which area of the armed services are you a member of?
a.Army
b.Navy
c.Air Forces
d.Marines(x)
2.What is your grade?
a.E-1 to E-3 f. Warrant Officer
b.E-4 g. O-1 to O-2
c.E-5 h. O-3(x)
d.E-6 i. O-4
e.E-7 to E-9 j.O-5 and above
3.What category does your occupation fall?
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
b.Electronic Equipment Repair
c.Communications and Intelligence Specialists
d.Medical and Dental Specialists
e.Other Technical and Allied Specialists, including photography, drafting, surveying, mapping, weather, ordinance disposal and diving, scientific and engineering aides, musicians
f.Administrative Specialists and Clerks
g.Electrical/Mechanical Equipment Repair(x)
h.Craft workers, including metal working, construction, utilities, lithography, gas and fuel production, fabric, leather and rubber repair, marine operating crafts, fire fighting, and damage control
4.Are you (mark only one)
a.Hispanic
b.Black
c.White
d.Other (x)
5.What is the highest grade of school that you have completed?
a.High school, not graduate
b.High school diploma or GED(x)
c.Associate鈥檚 or other two year degree
d.Bachelor鈥檚 degree
e.Graduate Study or graduate Degree
6.What is your gender?
a.Male(x)
b.Female
To be continued...
The rest of the survey...
7.If currently married or in relationship, is your spouse鈥?br>
a.On active military duty?
b.A civilian, but formally in the military?
c.A civilian, never in military?(x)
d.N/A, I am single
8.How long have you been serving in the military?
Years__4___Months_____
9.Have you served in the following operations (check all that apply)?
__ Operation Just Cause in Panama
_x_ Operations Desert Storm/Shield
__ Operation Joint Task Force hurricane Andrew or Katrina in Florida and Georgia
__ Operation Restore Hope in Somalia
__ Operation Able Sentry in Macedonia
__ Operation Uphold Democracy in Haiti
__ Operation Joint Endeavor in Bosnia
__x Other
10.Would you like to stay in military until retirement?
a.Yes
b.No(x)
c.Not sure
11.Are their members of the opposite sex serving in your unit?
a.Yes(x)
b.No
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.(x)
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit(x).
b.We are a loosely cohesive unit.
c.We are divided into conflicting groups.
d.Gender differences weaken cohesiveness.
14.Do you think men and women should be segregated during basic training, or integrated?
a.Segregated for both enlisted and officers
b.Segregated for enlisted, but integrated officers
c.Integrated for enlisted, but segregated for officers
d.Integrated for both enlisted and officers(x)
15.When women are integrated into previously all-male units, how should they be assigned?
a.We should try to assign women evenly across units.
b.We should try to assign women only to some units so there will be more of them on each sight.
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.(x)
To be continued...
The rest of the survey:
16.Do you believe women are treated differently by your commanding officer?
a.Yes(x)
b.No
17.Do you believe you have been treated differently by your coworkers because of gender?
a. Yes
b. No(x)
18. If you believe you have been treated differently, how (select all that apply)?
a. I have received more mentoring/instruction/support than opposite gender.
b. I have received less mentoring/instruction/ support than opposite gender.
c. I have been given more dirty work.
d. I have been given less dirty work.
e. Others pay more attention to me and single me out.
f. Others pay less attention to me and ignore me.
g. I am harassed or teased because of my gender.
h. More is expected of me than the opposite gender.
i. Less is expected of me that the opposite gender.
j. I tend to get better assignments than the opposite gender.
k. I tend to get worse assignments than the opposite gender.
l. I tend to receive overly positive work evaluations.(x)
m. I tend to receive overly negative work evaluations.
n. I have a better chance of being promoted than the opposite gender.
o. I have a less chance of being promoted than the opposite gender.
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
c.I think that women should be treated exactly like men and serve in the combat arms just like men.(x)
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.(x)
Infantry a b c
Armor a b c
Submarines a b c
Special Forces a b c
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
a.Yes
b.No(x)
c.If yes, please explain:|||"There is no penalty if you choose not to respond."
Why would you even put this on your question? Even if there WERE a penalty, how would it be enforced? Since it cannot be, what value does this statement have?
In any case, what is the purpose of such a "poll"? This is more about women's role in the military and much less about unit cohesion.
The first half deals with personal information, with the intent to segregate answers by category, I assume.
The other half deals with women in the military. Plain and simple, women do not belong in front line (all male) units of any kind at any time, but can serve in all other support and service support functions.
Furthermore, women and men are not equal in ability or the same in physiology and psychology, and should not be considered interchangeable. We absolutely must consider gender when assigning personnel, as this has a bearing on how each person might perform and affect the rest of the unit.
I hope, providing this survey is even real, that you come to the conclusion that men and women are different, should be different, and that it is these differences that make us who we are.
...ah, yes, and you're welcome.|||What kind of penalty would there be if there WAS a penalty for not responding. How would you know who did NOT respond any way? YOU'RE IN COLLEGE?
AZ A COLIG STUDANT YOU NIED TO USE SPEL CHEK.
AHAHAHAOHOHOHOH
How many more times are you going to post this?
(USN, retired and damned proud!)|||1.Which area of the armed services are you a member of?
a.Army
2.What is your grade?
a.E-1 to E-3 f. Warrant Officer
3.What category does your occupation fall?
a.Infantry, Gun Crews and Allied Science, including armor and amphibious, combat engineering, combat air crew and military police.
4.Are you (mark only one)
c.White
5.What is the highest grade of school that you have completed?
a.High school, not graduate
b.High school diploma or GED
6.What is your gender?
a.Male
7.If currently married or in relationship, is your spouse鈥?br>
d.N/A, I am single
8.How long have you been serving in the military?
Years_____Months 6
9.Have you served in the following operations (check all that apply)?
__ Operation Just Cause in Panama
__ Operations Desert Storm/Shield
__ Operation Joint Task Force hurricane Andrew or Katrina in Florida and Georgia
__ Operation Restore Hope in Somalia
__ Operation Able Sentry in Macedonia
__ Operation Uphold Democracy in Haiti
__ Operation Joint Endeavor in Bosnia
__ Other
10.Would you like to stay in military until retirement?
b.No
11.Are their members of the opposite sex serving in your unit?
b. no
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
(ALL OF THE ABOVE)
13.How would you describe the cohesiveness of your unit?
a.We are a very cohesive unit.
14.Do you think men and women should be segregated during basic training, or integrated?
d.Integrated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
16.Do you believe women are treated differently by your commanding officer?
a.Yes
17.Do you believe you have been treated differently by your coworkers because of gender?
b. No
18. If you believe you have been treated differently, how (select all that apply)?
k. I tend to get worse assignments than the opposite gender.
19.Which of the following options comes closet to your opinion?
a.I am satisfied with the present military regulations that exclude women from certain direct combat roles.
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry b
Armor a
Submarines a
Special Forces a
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
b.No|||1.Which area of the armed services are you a member of?
c.Air Forces
2.What is your grade?
a.E-1 to E-3
3.What category does your occupation fall?
e.Other Technical and Allied Specialists, including photography, drafting, surveying, mapping, weather, ordinance disposal and diving, scientific and engineering aides, musicians
4.Are you (mark only one)
a.Hispanic
5.What is the highest grade of school that you have completed?
c.Associate鈥檚 or other two year degree
6.What is your gender?
a.Male
7.If currently married or in relationship, is your spouse鈥?br>
c.A civilian, never in military?
8.How long have you been serving in the military?
Years 1 Months 5
9.Have you served in the following operations (check all that apply)?
10.Would you like to stay in military until retirement?
b.No
11.Are their members of the opposite sex serving in your unit?
a.Yes
12.Which of the following describes how you feel about your co-workers?
a.I believe that I can trust and depend on my coworkers.
b.I believe that my coworkers and I communicate well
c.I believe that my coworkers and I work well together.
d.I believe that my coworkers and I would respond well to a crisis.
13.How would you describe the cohesiveness of your unit?
b.We are a loosely cohesive unit.
14.Do you think men and women should be segregated during basic training, or integrated?
a.Segregated for both enlisted and officers
15.When women are integrated into previously all-male units, how should they be assigned?
c.We shouldn鈥檛 pay attention to gender when assigning women to previously all-male units.
16.Do you believe women are treated differently by your commanding officer?
a.Yes
17.Do you believe you have been treated differently by your coworkers because of gender?
b. No
18. If you believe you have been treated differently, how
19.Which of the following options comes closet to your opinion?
b.I think that women who want to volunteer for the combat arms should be allowed to do so.
20.How do you feel about the possibility of women serving in the following units?
a.These units should remain closed to women. b.Qualified women should be allowed to volunteer for these units. c.Qualified women should be assigned to these units the same way men are.
Infantry b
Armor bc
Submarines b
Special Forces a
21.Is there anything on the topic of women serving in your unit that you would feel uncomfortable saying in front of service members?
b.No
What "effect" can this create to my indoor cat?
I have purchased a RIDDEX(r) Power Plus Pest Repelling Aid for my house.
I plan to use this electronic device to help rid my house from the occasional mice that find their way indoors.
This unit is supposed to send an electronic or high frequency "sound wave" throughout the electric wires throughout my house.
I'm concerned if my indoor cat will hear these sound waves while wandering through the house. Will these sound waves (in any way) HURT his hearing or other anatomical system?
Yes - I know it is better to let my cat take care of these random mice (which he occasionally does.) I am trying to help him gain some CONTROL on these many rodents before they create a LARGER problem indoors, like foraging in my dog's dry food container.|||You have a cat. What do you need with the electronics which will, by the way, irritate the cats and the dogs ears. Just let the cat take care of the mice; that's what they do best.
I plan to use this electronic device to help rid my house from the occasional mice that find their way indoors.
This unit is supposed to send an electronic or high frequency "sound wave" throughout the electric wires throughout my house.
I'm concerned if my indoor cat will hear these sound waves while wandering through the house. Will these sound waves (in any way) HURT his hearing or other anatomical system?
Yes - I know it is better to let my cat take care of these random mice (which he occasionally does.) I am trying to help him gain some CONTROL on these many rodents before they create a LARGER problem indoors, like foraging in my dog's dry food container.|||You have a cat. What do you need with the electronics which will, by the way, irritate the cats and the dogs ears. Just let the cat take care of the mice; that's what they do best.
Help me about computer parts/functions?
ok.. im very not-so-intellegent with computers, and there is 30 questions. plz help me
1)_____attachment
2)_____browser
3)_____computer virus
4)_____central processing unit
5)_____disk drive
6)_____email
7)_____fire wall
8)_____hackers
9)_____hard drive
10) ____ hard ware
11)____ help
12)____ hyperlink
13)____ icon
14)____ internet
15)_____ internet service provider
16)____ intranet
17)____ keyboard
18)_____ microprocessor
19)_____ modem
20)_____ monitor
21)____mouse
22)___ navigation bar
23)____ operating system
24)____ password
25)____search engine
26)____server
27)____software
28)____spam
29)____ streaming
30) ____uniform resource locator (URL)
now for defination... (sry i really suck a doing this)
a)common internal storage device for computer
b)destructive program loaded onto a computer and run without the user's knowledge
c)fast, powerful compouter used to host email and store information for website
d) file that travels with an email message
e)hardware device that allows electronic data to be sent by telephone lines or channels
f)input device used for commands and navigation often with left and right click and scroll
g)input device with an arrangement of letter figure symbol control function and editing keys and numeric key pad
h)input/output device that reads data from and writes to a disk
I) internal operating unit or "brain" of computer
J) listing of hyperlinks; often at the side of a web age
K)organization that provides customer connections to the internet and related services
L)output device that displays text and graphics on a screen
M)picture that represents commands or programs on a computer
N)playing video and sound in real time
O)private computer network for use by employees or members
P)program that allows users to view web pages
Q)program that controls the operation of a computer
R)program that performs keyword searches for information on the internet
S)programs that contain instructions for a computer; also called applications
T)public, worldwide computer network made up of smaller interconnected networks that spans the earth
U) security system designed to prevent unauthorized entry to a network
V)series of letters and/or numbers that you enter to gain access to a network or program
W)shortened term that stands for electronic mail
X)small ciruit board that controls all the processing within a computer; referred to as a chip
Y)software feature that provides quick access to information about commands,features,and screen elements
z)the physical parts of a computer or related equipment
AA)Unauthorized users of computers or networks
BB) unwanted email advertising or web pages that appear without being requested
CC) web address like http://www.google.com
DD) word pharase or picture that when clicked takes the user to another location
ok... now please fill this with me... i got few of them... i beg you... this computer thing is frying my brain!|||1 d
2 p
3 b
4 i
5 h
6 w
7 u
8 aa
9 a
10 z
11 y
12 dd
13 m
14 t
15 k
16 o
17 g
18 x
19 e
20 l
21 f
22 j
23 q
24 v
25 r
26 c
27 s
28 bb
29 n
30 cc
1)_____attachment
2)_____browser
3)_____computer virus
4)_____central processing unit
5)_____disk drive
6)_____email
7)_____fire wall
8)_____hackers
9)_____hard drive
10) ____ hard ware
11)____ help
12)____ hyperlink
13)____ icon
14)____ internet
15)_____ internet service provider
16)____ intranet
17)____ keyboard
18)_____ microprocessor
19)_____ modem
20)_____ monitor
21)____mouse
22)___ navigation bar
23)____ operating system
24)____ password
25)____search engine
26)____server
27)____software
28)____spam
29)____ streaming
30) ____uniform resource locator (URL)
now for defination... (sry i really suck a doing this)
a)common internal storage device for computer
b)destructive program loaded onto a computer and run without the user's knowledge
c)fast, powerful compouter used to host email and store information for website
d) file that travels with an email message
e)hardware device that allows electronic data to be sent by telephone lines or channels
f)input device used for commands and navigation often with left and right click and scroll
g)input device with an arrangement of letter figure symbol control function and editing keys and numeric key pad
h)input/output device that reads data from and writes to a disk
I) internal operating unit or "brain" of computer
J) listing of hyperlinks; often at the side of a web age
K)organization that provides customer connections to the internet and related services
L)output device that displays text and graphics on a screen
M)picture that represents commands or programs on a computer
N)playing video and sound in real time
O)private computer network for use by employees or members
P)program that allows users to view web pages
Q)program that controls the operation of a computer
R)program that performs keyword searches for information on the internet
S)programs that contain instructions for a computer; also called applications
T)public, worldwide computer network made up of smaller interconnected networks that spans the earth
U) security system designed to prevent unauthorized entry to a network
V)series of letters and/or numbers that you enter to gain access to a network or program
W)shortened term that stands for electronic mail
X)small ciruit board that controls all the processing within a computer; referred to as a chip
Y)software feature that provides quick access to information about commands,features,and screen elements
z)the physical parts of a computer or related equipment
AA)Unauthorized users of computers or networks
BB) unwanted email advertising or web pages that appear without being requested
CC) web address like http://www.google.com
DD) word pharase or picture that when clicked takes the user to another location
ok... now please fill this with me... i got few of them... i beg you... this computer thing is frying my brain!|||1 d
2 p
3 b
4 i
5 h
6 w
7 u
8 aa
9 a
10 z
11 y
12 dd
13 m
14 t
15 k
16 o
17 g
18 x
19 e
20 l
21 f
22 j
23 q
24 v
25 r
26 c
27 s
28 bb
29 n
30 cc
How come sometime one of 3 phase supply does not produce amp when running certain speed of VSD?
Situation: I have 5 unit SIEMEN VSD, all the time running 3 unit VSD, each of the incoming ampere carries R=33A, Y=35A, B=41A to control pressure A, but when running 4 unit VSD, you will notice 2 or 3 out of 4 unit one of the phase carries 0A (R=40A, Y=42A, B=0A) to control pressure A. However output secondary all carries balance load so no harm to the motor. Question is why this thing able happen? Is it due to load distribution? Is it due to voltage fluctuation affect the firing of power electronic component? Is it due to harmonic voltage high incure unstability of firing of power electronic component?|||Most variable frequency drives (VFD) have just a passive 3-phase rectifier in the input section. Each phase of the rectifier conducts for only a short time when the voltage is near the peak of the sine wave. The input current is often imbalanced due to slight voltage imbalance and/or differences in supply line phase impedances. When the VFD is lightly loaded, the current imbalance is most noticeable. However, one phase current dropping completely dropping to zero would indicate a serious supply voltage imbalance, a bad connection or a bad circuit breaker or contactor somewhere in the supply wiring.
If the VFD has an active input section such as a controlled rectifier, the problem could be due to a problem with firing.
If the VFD has an active input section such as a controlled rectifier, the problem could be due to a problem with firing.
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