Answer / k.prakashchandra

All cts in parallel and REFR in series with NCT

Answer / royiype

P1, P2 & S1 S2 DIRECTIONS OF CTS, HOW MANY CTS IN 3PHASE
4WIRE SYSTEM AND CT DIRECTIONS

Answer / rajesh

WHY DO WE NEED CT IN NUETRAL

BECAUSE METERING IS DONE OF PHASE AND THERE IS NO CURRENT IN A BALANCED SYSTEM.

why dhyedration test required for transformer oil once in a year

1 Answers  

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define one ampere?

2 Answers  

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What is static Device & Mechanical device? Is transformer a static device?

5 Answers   ABB, Emco,

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why compound generator is used in generating station?

2 Answers  

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what is kvarh? Please difine it With calculation

3 Answers   GM General Motors,

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what are inductive and capacitive voltage transformers.what are their applications

0 Answers  

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I have a 1000 kVA Transformer(11kV/0.415kV) and a APFC panel of 400 kVAR(LT).Now if i want to remove the LT APFC panel and install a HT(11kV) APFC panel on the HT side is the HT APFC panel will work same as the LT APFC panel(improve the power factor),if yes what will be rating of the HT APFC panel?what is the formula to calculate HT APFC panel rating???

2 Answers  

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At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

0 Answers  

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what happen if turbine trip ,g.c.b not open and excitation on condition?

1 Answers  

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.if the vector group of two transformers is not same n tey r connected in parallel operation then what will happen?

2 Answers   ABB,

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What is the purpose of stand by earth fault protection for transformer ?

0 Answers  

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In auto transformer if power transferred inductively and conductively are same, the ratio of output/input voltage is A 1 B 0.7 C 0.5 D none of above

2 Answers   Getco,

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