If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

DGVCL Exam Paper (11-12-2011)
If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

217.8 MW

251.5 MW

500 MW

435.6 MW

217.8 MW

251.5 MW

500 MW

435.6 MW

ANSWER DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
Which type of back up protection is widely used for the protection of transmission lines?

Control backup

Remote backup

Relay backup

Breaker backup

Control backup

Remote backup

Relay backup

Breaker backup

ANSWER DOWNLOAD EXAMIANS APP

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

Both the cross-magnetizing mmf and the reactance voltage

The reactance voltage

The demagnetizing effect of armature mmf

The cross-magnetizing effect of armature mmf

Both the cross-magnetizing mmf and the reactance voltage

The reactance voltage

The demagnetizing effect of armature mmf

The cross-magnetizing effect of armature mmf

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
Buchholz relay causes

Tripping for minor faults and alarm for major faults

Tripping for major faults and alarm for minor faults

Alarm for both major and minor faults

Tripping for both major and minor faults

Tripping for minor faults and alarm for major faults

Tripping for major faults and alarm for minor faults

Alarm for both major and minor faults

Tripping for both major and minor faults

ANSWER DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

It's power factor is higher

It has a higher efficiency

It can be started with the help of rotor resistances

It is suitable for higher speeds

It's power factor is higher

It has a higher efficiency

It can be started with the help of rotor resistances

It is suitable for higher speeds

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

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

Phase shifting transformer

Excitation control

Increasing the turbine valve opening

Single pole switching of circuit breakers

Phase shifting transformer

Excitation control

Increasing the turbine valve opening

Single pole switching of circuit breakers

ANSWER DOWNLOAD EXAMIANS APP

DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

DGVCL Exam Paper (11-12-2011) Which type of back up protection is widely used for the protection of transmission lines?

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

DGVCL Exam Paper (11-12-2011) Buchholz relay causes

DGVCL Exam Paper (11-12-2011) The advantage of slipring induction motor over the squirrel cage induction motor is

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

DGVCL Exam Paper (11-12-2011)
If the voltage at the two ends of a line are 132 kV, and its reactance is 40 Ω, the stability limit of the line is

DGVCL Exam Paper (11-12-2011)
Which type of back up protection is widely used for the protection of transmission lines?

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

DGVCL Exam Paper (11-12-2011)
Buchholz relay causes

DGVCL Exam Paper (11-12-2011)
The advantage of slipring induction motor over the squirrel cage induction motor is

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