Answer / wareagle

%Z has nothing to do with the impedance of the transformer.
Suggest you google %Z or % impedance for a complete
explanation.

Answer / markandeya

%Z is something related to transformer winding.
it will deside the fault level of the transformer.

if u give (132*8.35/100)volts instead of 132V to you
transformer,
short circuit current = full load current.

what is O.T?specify the acceptable range?

2 Answers  

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what kind of material to be used after ngr unit? cu or GI

1 Answers   Michelin,

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How to work E.L.C.B and how to connect in circuit.

0 Answers  

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What is the power factor of a transformer at no load?

0 Answers  

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WORKING PRINCIPLE OF VACCUM CKT BREAKER ?

2 Answers  

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In a star-star connected h.t transformer why we use NGR on the secondary (l.t)side.

3 Answers   Star, TATA,

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Define de-sensitivity?

0 Answers  

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Enlist four components of electrive drives.

0 Answers  

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if the 10 hp motor name plate indicates rated current as 13.6 amp the what will be the thermal relay setting? Why? And in how much time relay will trip at the set value?

2 Answers  

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Earth has zero potential then what would be the neutral potential ?

0 Answers   JLL,

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a.)Ammeter and Voltmeter read rms value or avg. value ? b.)What are symmetrical and Unsymmetrical faults?

2 Answers  

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how much current capacity 250 amp. mccb please tell me about whats are the reasons to trip 2 or 3 times in a night. and what are the steps to short out this problem

1 Answers   Havells,

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