What type of insulator is used if the direction of the transmission line is to be changed?

DGVCL Exam Paper (11-12-2011)
What type of insulator is used if the direction of the transmission line is to be changed?

Strain type

Shakle type

Pin type

Suspebsion type

Strain type

Shakle type

Pin type

Suspebsion type

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DGVCL Exam Paper (11-12-2011)
An over excited synchronous motor draws current at

Depends on nature of load

Leading power factor

Unity power factor

Lagging power factor

Depends on nature of load

Leading power factor

Unity power factor

Lagging power factor

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DGVCL Exam Paper (11-12-2011)
It is difficult interrupt a capacitive current because

The restriking voltage can be high

Current magnitude is very small

Stored energy in the capacitor is very high

It has a leading power factor

The restriking voltage can be high

Current magnitude is very small

Stored energy in the capacitor is very high

It has a leading power factor

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DGVCL Exam Paper (11-12-2011)
Reactance relay is used to protect against

Phase faults only

Over voltage faults

Both phase and earth faults

Earth faults only

Phase faults only

Over voltage faults

Both phase and earth faults

Earth faults only

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DGVCL Exam Paper (11-12-2011)
Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit?

Close circuit breaker-close isolator - open earthing switch

Close earthing switch - open ciruit- breaker-open islotor

Open isolator close circuit breaker-open earthing switch

Open circuit breaker-open isolator-close earthing switch

Close circuit breaker-close isolator - open earthing switch

Close earthing switch - open ciruit- breaker-open islotor

Open isolator close circuit breaker-open earthing switch

Open circuit breaker-open isolator-close earthing switch

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DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is

Split phase motor

Capacitor start capacitor run motor

Capacitor start motor

Universal motor

Split phase motor

Capacitor start capacitor run motor

Capacitor start motor

Universal motor

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DGVCL Exam Paper (11-12-2011)

DGVCL Exam Paper (11-12-2011) What type of insulator is used if the direction of the transmission line is to be changed?

DGVCL Exam Paper (11-12-2011) An over excited synchronous motor draws current at

DGVCL Exam Paper (11-12-2011) It is difficult interrupt a capacitive current because

DGVCL Exam Paper (11-12-2011) Reactance relay is used to protect against

DGVCL Exam Paper (11-12-2011) Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit?

DGVCL Exam Paper (11-12-2011) The motor used in celling fans is

DGVCL Exam Paper (11-12-2011)
What type of insulator is used if the direction of the transmission line is to be changed?

DGVCL Exam Paper (11-12-2011)
An over excited synchronous motor draws current at

DGVCL Exam Paper (11-12-2011)
It is difficult interrupt a capacitive current because

DGVCL Exam Paper (11-12-2011)
Reactance relay is used to protect against

DGVCL Exam Paper (11-12-2011)
Which of the following correctly represents the sequence of operations of isolator, circiut breaker and earthing switch while opening a circuit?

DGVCL Exam Paper (11-12-2011)
The motor used in celling fans is