what is short circuit force ? How to calculate it for Panel?

1 Answers   Bilt,

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How vaccum is formed to create a vaccum interrupter or anything related with vaccum?

6 Answers  

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what is the difference between equipment earth and system earth.

1 Answers   Hofincons,

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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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If the primary side current of 33/11 transformer is 64 amps then what will be secondary side current?

2 Answers  

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Electromotive force is provided by:(a) Resistance’s(b) A conducting path(c) An electric current(d) An electrical supply source

2 Answers  

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What is Meter MF if External CT Ratio is 150/1 , PT Ratio is 132/110 Meter CT Ratio is 200/1 & Meter PT Ratio is 110/1

0 Answers  

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what is POTT and PUTT explain?

0 Answers  

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How to select the rating of the Transformer?

2 Answers  

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i need project topics along with circuit diagram in the electrical and electronics engg and also some websites regarding projets.

0 Answers  

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give types of Air conditioners commonly used &its use?

5 Answers  

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what is the purpose of starter in tube light?what is it operation .

1 Answers  

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