MGVCL Exam Paper (30-07-2021 Shift 2)

MGVCL Exam Paper (30-07-2021 Shift 2)
Which of the following does the term 'feeder automation' include?

substation reactive power control

feeder remote point voltage control

automatic reclosing

All of these

substation reactive power control

feeder remote point voltage control

automatic reclosing

All of these

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MGVCL Exam Paper (30-07-2021 Shift 2)
A delta-connected balanced three-phase load is supplied from a three-phase, 400 V supply. The line current is 20 A and the power taken by the load is 10 kW. Find the power factor.

0.72

0.62

0.52

0.82

0.72

0.62

0.52

0.82

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MGVCL Exam Paper (30-07-2021 Shift 2)
A three-phase, 4-pole, 50 Hz induction motor runs at 1425 rpm. Find out the percentage slip of the induction motor.

4%

3%

6%

5%

4%

3%

6%

5%

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MGVCL Exam Paper (30-07-2021 Shift 2)
Which one of the following is the largest windfarm located in India?

Mundra

Vindhayachal

Talcher

Muppandal

Mundra

Vindhayachal

Talcher

Muppandal

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MGVCL Exam Paper (30-07-2021 Shift 2)
The single line diagram of the simple power system is shown in figure the corresponding reactance diagram is

A

B

C

D

A

B

C

D

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MGVCL Exam Paper (30-07-2021 Shift 2)
The voltage applied to a transformer primary is increased keeping V/f constant. With this, the core loss and the magnetizing current (Im)

increases, increases

increases, remains constant

remains constant, decreases

decreases, increases

increases, increases

increases, remains constant

remains constant, decreases

decreases, increases

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