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POWER SYSTEMS

Power Systems
The most suitable circuit breaker for short line fault without switching resistor is

 none of these.
  SF6 breaker.
 oil circuit breaker.
 air blast circuit breaker.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Mho relay is used for the protection of

  long transmission lines.
 short length lines.
 no length criterion.
 medium length lines.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
IF the time of operation of a relay for unity TMS is 10 sec then the time of operation for 0.5 TMS is

  5 sec.
 none of these.
 10 sec.
 20 sec.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
Where the voltage is high and current to be interrupted is low, Which of following the breaker is preferable?

 Oil CB.
 Any of these.
 Air blast CB.
  Vacuum CB.

ANSWER DOWNLOAD EXAMIANS APP

Power Systems
A 60 Hz, 320 Km loss less line has sending end voltage 1.0 pu. The receiving end voltage on no-load is

  1.088 pu.
 1.1 pu.
 1.116 pu.
 none of these.

ANSWER DOWNLOAD EXAMIANS APP
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