Which type of back up protection is widely used for the protection of transmission lines?

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

Relay backup

Breaker backup

Control backup

Remote backup

Relay backup

Breaker backup

Control backup

Remote backup

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

Voltage controlled over current relay

Directional restrained over current relay

Voltage restrained directional relay

Directional restrained over voltage relay

Voltage controlled over current relay

Directional restrained over current relay

Voltage restrained directional relay

Directional restrained over voltage relay

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DGVCL Exam Paper (11-12-2011)
Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

The force increases when the distance between the conductors is decreased

There is a repelling force between the conductors

There is an attracting force between the conductors

The force increases when the distance between the conductors is increased

The force increases when the distance between the conductors is decreased

There is a repelling force between the conductors

There is an attracting force between the conductors

The force increases when the distance between the conductors is increased

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DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

The length of the conductor

Spacing between the conductors

Both spacing between the conductors and diameter of the conductor

Diameter of the conductor

The length of the conductor

Spacing between the conductors

Both spacing between the conductors and diameter of the conductor

Diameter of the conductor

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DGVCL Exam Paper (11-12-2011)
At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

Conductor

Voltage source

Capacitor

Resistor

Conductor

Voltage source

Capacitor

Resistor

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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) Which type of back up protection is widely used for the protection of transmission lines?

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

DGVCL Exam Paper (11-12-2011) Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

DGVCL Exam Paper (11-12-2011) The corona effect can be minimized by increasing

DGVCL Exam Paper (11-12-2011) At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

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

DGVCL Exam Paper (11-12-2011)
Two parallel conductors are carrying the current in the same direction. Which of the following statements is correct?

DGVCL Exam Paper (11-12-2011)
The corona effect can be minimized by increasing

DGVCL Exam Paper (11-12-2011)
At time t= 0+ , with zero initial condition, which of the following acts as a short circuit?

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