Answer / guest

servo voltage stabilizer maintains the constant voltage output
by comparing variation of voltage at load. ie closed loop
control. but in case of general voltage stabilizer maintains
the constant voltage output by sensing variation of voltage
at input.

What is the actual calculation for transformer short circuit test?.

0 Answers  

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cable armor

3 Answers  

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Alternators are invariably star connected why?

4 Answers  

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WHAT IS THE USE OF STARTER AND CHOKE IN TUBE LIGHT?

1 Answers   Siemens,

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Why do you get a typical sound when the transformer is put into operation?

4 Answers   IIT,

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why ten delta testing is carried out on power transformer

0 Answers  

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wil a dc motor run without a starter??

9 Answers   MRF,

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What is core balancing in Power Transformer. What is the affect of an unbalabce core.

1 Answers  

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how much GROUND & NEUTRAL VOLT maintain in data center.

0 Answers  

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ohm's law is applicable to DC/AC/Both??

6 Answers   KPIT,

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One of our gas turbine generator unit "1st stage rotor ground fault" alarm was occured several times. we tried to measure some voltage vulue ground fault protection relay (UNS3020a made by ABB and we measured the value of: Ground: 0.9VDC 5V: 5.8VDC 24V: 23VDC u+: 300 – 350mVAC Rf1: 17.5mVAC Rf2: 17.6mVAC The unit still running and the alarm was reset. As of 6pm yesterday and unitl now no alarm happened again. I our protection relay was defective?

1 Answers  

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why we use stones or rock pieces in transformer area?

10 Answers  

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