what is the main use of ac and dc drives ? it is only used for speed variation or for power saver also?

1 Answers  

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it is used to measure the potial difference between two point?

2 Answers  

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what is the difference between high impedance and low impedance circuit?

2 Answers  

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If i have 200 test cases and we have to execute but we don't have time to execute all testcases.within 1 hour we have to execute that testcases and prepare the test report.so how i have to resolve this problem? is there is any technique in the testing.

3 Answers   Stag Computers,

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what is different between DIGITAL and ANALOG?

3 Answers  

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why we can't use more then 50 hz in india ? Is it possible ?

7 Answers   DVC,

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Why Magnetic Core Balance test is performed only on Star side of Transformer and not on Delta Side of Transformer (Vector Group Dyn11)?

1 Answers  

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ON WHAT BASIS LOADS ARE CLASSIFIED AS RESISTIVE,INDUCTIVE AND CAPACITIVE LOADS?.GIVE PRACTICAL EXAMPLES FOR EACH

6 Answers  

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Is there any problem about which the drive (inverter) doesn't show/display the alarm and/or fault but instead of this , it doesn't work ? I want to know that could there be any kind of problem in the drive when the drive doesn't display the alarm and/or fault ?

0 Answers   Siemens,

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is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

0 Answers   Wipro,

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Who we calculate the generator NGR resistant, generator voltage 11 KV ?

2 Answers   ABB,

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Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

0 Answers  

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