Answer / sachin

Secondury open circuted,Ct,s Secundery winding is always
ahort ckt.If it opens Ct get satuarated and damage

Answer / t.gnanavel

if the secondary winding is in open there is no back emf to
the primary winding.so the current in the primary winding
increased to an infinit value and the coil gets burn out.

If a current -8+6sin6t is flowing three ammeter, one is a centre zero PMMC meter, one is true rms meter and one is moving iron meter. What are the reading of these three meter respectively?

0 Answers   National Insurance Company Limited,

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Explain about Leakage Test.

0 Answers  

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if v r considering a 4000/1A ct,if v inject 1 amps in secondary core wat happens?(consider as 2 core ct,each for metering and protection)

1 Answers  

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if 50hz transformer is required to be run on 50% frequency what needs to be done???????????

6 Answers   century,

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What is the Minimum winding resistance of motors ( small & big)? referance range

0 Answers   TATA,

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What are stable systems?

0 Answers  

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ouestion for the post of section engineer

1 Answers   BSNL, RRB,

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What is GIS (Gas Insulated Switchgear)

3 Answers   Power Grid,

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what is the difference between mho characteristics and quadrilateral chara in distance protection

1 Answers   Essar,

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On what cycle does thermal power plant operate?

0 Answers  

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what is skin effect?

6 Answers   MPSEB,

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what is relation between vector group of transformer and its load hormonics?

1 Answers   Sanmar,

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