what is the difference between potential transformer and capacitive voltage transformer?

1 Answers  

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1) What is difference b/w impedence relay and differential relay? 2) what are substations equipments? 3) what is difference b/w circuit breaker and isolator? 4)what are the types of circuit breakers? 5) which medium is mostlty used in circuit breakers and why it is used?

1 Answers   NTDC,

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What is the ratio of true power to apparent power in an ac circuit?

0 Answers  

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why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?

2 Answers   GE,

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The power consumption, in case of centrifugal loads (like pump, fan, blower etc.), proportional to ____.

2 Answers   BSNL, NTPC,

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how gen. load increase or decrease ? what happen with gen on that time

2 Answers  

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Why frequency fix in 50 Hz?

6 Answers  

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what is interpose? where it is used and why it is used?

0 Answers  

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In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

0 Answers   PPIL,

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WHAT is the no of starts/hr for 3.3 KV, 300 KW motor. Motor is vertical flange type.

1 Answers   DAE, Siemens,

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How to get a multiplier in 11kv energy meter?

1 Answers  

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pls send me some question and answer for rrb railway interviw related 2010

2 Answers   CEAT, RRB,

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