Answer / k.prakashchandra

No effect on ammeter.In EM type Watt meter and energy meter
the readings reversed.In ETVM import and export interchange.

Answer / vels

one phase is reversed then the Energy meter will not give correct reading
but 3 phases are reversed then the current direction shown are wrong and the reading of MW ,MVAR are showing import instead of export

Answer / sureshkumar

incase protcetion CT not protective the equipment, so direction is must.

Answer / kj

It only has an effect where the direction of current flow
is important. For example monitoring import and export of
power.

Compare salient pole and Hndrical rotor machines.

1 Answers  

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What is difference between unity power factor wattmeter and upper power factor wattmeter? In short circuit test of transformer the wattmeter used is unity power factor type or upper power factor type wattmeter?

0 Answers   Jindal Steel and Power,

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how do find power factor in practically and what it means?

3 Answers  

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choose the non-switch device (A) transformer (B) diode (C) transistor (D) IC

3 Answers  

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What is servo motor and what are different types of servo motor

0 Answers   BARC, Vipul,

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how do using transformer 30 deg lag or 30 deg lead

1 Answers  

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We have ONLINE UPS 15KvA (3PHASE 440V I/P,3PHASE O/P,440V) I want to step down from 440 to 220 V What to do. Pl. suggest with specification.

1 Answers   ARDE,

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why the transformer has no starter

2 Answers   NTPC,

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working of bulb?

1 Answers  

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Define sensitivity?

0 Answers  

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can I connect step down transformer(25KvA,240V Phase to phase)to output of online UPS(15KvA,440V PHASE TO PHASE) Load connect to TRANSFORMER is 13KvA,240V PHASE TO PHASE. please brief if it is wrong

1 Answers   DRJ ARDE,

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how oltc works in rectiformers of higher rating (27 mva,200v dc,120kamps) please provide me full information with diaggram.

0 Answers  

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