A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

DGVCL Exam Paper (11-12-2011)
A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

5 %

6 %

4 %

0.4 %

5 %

6 %

4 %

0.4 %

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DGVCL Exam Paper (11-12-2011)
A Mho relay is a

Voltage restrained directional relay

Directional restrained over voltage relay

Directional restrained over current relay

Voltage controlled over current relay

Voltage restrained directional relay

Directional restrained over voltage relay

Directional restrained over current relay

Voltage controlled over current relay

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DGVCL Exam Paper (11-12-2011)
The transient stability of a power system can be improved by

Single pole switching of circuit breakers

Excitation control

Phase shifting transformer

Increasing the turbine valve opening

Single pole switching of circuit breakers

Excitation control

Phase shifting transformer

Increasing the turbine valve opening

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DGVCL Exam Paper (11-12-2011)
A fuse wire should have

High specific resistance and low melting point

High specific resistance and high melting point

Low specific resistance and low melting point

Low specific resistance and high melting point

High specific resistance and low melting point

High specific resistance and high melting point

Low specific resistance and low melting point

Low specific resistance and high melting point

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DGVCL Exam Paper (11-12-2011)
The bus bar zone faults are generally

Three phase short ciruits

Phase to phase faults

Double line to ground faults

Single line to ground faults

Three phase short ciruits

Phase to phase faults

Double line to ground faults

Single line to ground faults

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DGVCL Exam Paper (11-12-2011)
The purpose of interpoles in DC machines is to nullify

The demagnetizing effect of armature mmf

Both the cross-magnetizing mmf and the reactance voltage

The cross-magnetizing effect of armature mmf

The reactance voltage

The demagnetizing effect of armature mmf

Both the cross-magnetizing mmf and the reactance voltage

The cross-magnetizing effect of armature mmf

The reactance voltage

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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

DGVCL Exam Paper (11-12-2011) A Mho relay is a

DGVCL Exam Paper (11-12-2011) The transient stability of a power system can be improved by

DGVCL Exam Paper (11-12-2011) A fuse wire should have

DGVCL Exam Paper (11-12-2011) The bus bar zone faults are generally

DGVCL Exam Paper (11-12-2011) The purpose of interpoles in DC machines is to nullify

DGVCL Exam Paper (11-12-2011)
A 3 phase, 6 pole induction motor operates on 440 V, 50 Hz, supply. If the actual speed of the motor is 960 rpm the slip will be

DGVCL Exam Paper (11-12-2011)
A Mho relay is a

DGVCL Exam Paper (11-12-2011)
The transient stability of a power system can be improved by

DGVCL Exam Paper (11-12-2011)
A fuse wire should have

DGVCL Exam Paper (11-12-2011)
The bus bar zone faults are generally

DGVCL Exam Paper (11-12-2011)
The purpose of interpoles in DC machines is to nullify