what is the meaning of Ring Mean Unit in a substation or trasformer also tell me its oerpuse?

4 Answers   NPTC, NTPC,

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what will happen at the time of CT saturation?and what will be the Relay's function at the time of CT saturation?

2 Answers  

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Is Transol transformer oil comparable to nynas nytro libra?

0 Answers  

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We have isolation transformer 25kvA & ONLINE UPS 15KvA (3PHASE I/P,3PHASE O/P)where isolation should have connect,before UPS or after please brief.

1 Answers   DRJ ARDE,

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how and why are capacitors are used to improve powerfactor?

4 Answers  

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What is the Load Capacity of Panther conductor (0.2) and dog conductor (0.2) 

0 Answers   Greenko Group,

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In DC generator, we use commutator, having no. of segments. Then how it is possible to get a half wave of voltage and current for half rotation of armature?

0 Answers  

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What is phase cross over frequency?

0 Answers  

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at work we have a 3 phase motor but on testing one phase isnt getting a reading. it runs 24 hours a day all week. stops and starts well no noise or heating. the phase isnt down to earth.is it just a bad meter reading or not? phases one and three came up with a resistance reading of 0.4 but phase 2 couldnt get anything shows up as open circuit.

0 Answers   iGas,

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HOW DISTANCE PROTECTION IS DONE IN EHV TRANSMISSION LINES? WHAT IS THE BASIC TECHNIQ OR FUNDA USED BEHIND THIS ? SPECIALLY EXPLAIN?IMPEDANCE METHOD.

2 Answers   ABB,

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How to improve fuel cell in a distribution system?

0 Answers  

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What is the Good Earth resistance value of G.I & Cu. Chemical Earthing & Normal Pipe Earthing?

0 Answers   ABC, Reliance Life Sciences, TCS,

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