The arc temperature in Oil Circuit Breaker may reach up to _____

DGVCL Exam Paper (12-06-2016)
The arc temperature in Oil Circuit Breaker may reach up to _____

8,000° K

None of these

5,000° K

10,000° K

8,000° K

None of these

5,000° K

10,000° K

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DGVCL Exam Paper (12-06-2016)
The Minimum Oil Circuit Breaker (MOCB) is named because of :

Reduced requirement of oil

All of these

None of these

Reduced requirement of air

Reduced requirement of oil

All of these

None of these

Reduced requirement of air

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DGVCL Exam Paper (12-06-2016)
What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage:

Eddy Current and Hysteresis losses will be excessive

Current will be too much high

Transformer may start to smoke and burn

No effect

Eddy Current and Hysteresis losses will be excessive

Current will be too much high

Transformer may start to smoke and burn

No effect

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DGVCL Exam Paper (12-06-2016)
True value has been 50 whereas measured value is 40 then the percentage error in the reading will be _____

0.2

0.5

0.4

0.3

0.2

0.5

0.4

0.3

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DGVCL Exam Paper (12-06-2016)
GUVNL is:

Gujarat Urja Vikas Nigam Limited

Gujarat Urja Vyapar Nigam Limited

None of these

Gujarat Urja Vikas Nikash Limited

Gujarat Urja Vikas Nigam Limited

Gujarat Urja Vyapar Nigam Limited

None of these

Gujarat Urja Vikas Nikash Limited

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DGVCL Exam Paper (12-06-2016)
The main disadvantages of having poor power factors are:

Poor voltage regulation

All of these

High energy loss in conductor

High cost of station and distribution equipment

Poor voltage regulation

All of these

High energy loss in conductor

High cost of station and distribution equipment

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DGVCL Exam Paper (12-06-2016)

DGVCL Exam Paper (12-06-2016) The arc temperature in Oil Circuit Breaker may reach up to _____

DGVCL Exam Paper (12-06-2016) The Minimum Oil Circuit Breaker (MOCB) is named because of :

DGVCL Exam Paper (12-06-2016) What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage:

DGVCL Exam Paper (12-06-2016) True value has been 50 whereas measured value is 40 then the percentage error in the reading will be _____

DGVCL Exam Paper (12-06-2016) GUVNL is:

DGVCL Exam Paper (12-06-2016) The main disadvantages of having poor power factors are:

DGVCL Exam Paper (12-06-2016)
The arc temperature in Oil Circuit Breaker may reach up to _____

DGVCL Exam Paper (12-06-2016)
The Minimum Oil Circuit Breaker (MOCB) is named because of :

DGVCL Exam Paper (12-06-2016)
What would happen if a power transformer designed for operation on 50 Hz (frequency) were connected to a 500 Hz (frequency) source of the same voltage:

DGVCL Exam Paper (12-06-2016)
True value has been 50 whereas measured value is 40 then the percentage error in the reading will be _____

DGVCL Exam Paper (12-06-2016)
GUVNL is:

DGVCL Exam Paper (12-06-2016)
The main disadvantages of having poor power factors are: