In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

MGVCL Exam Paper (30-07-2021 Shift 3)
In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

All of these

Core movement

Winding damage

Short circuits

All of these

Core movement

Winding damage

Short circuits

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MGVCL Exam Paper (30-07-2021 Shift 3)
In a 3-phase, 4-wire, 400/230 V system, a lamp (L₁) of 100 W is connected to one phase and neutral and a lamp (L₂) of 150 W is connected to the second pahse and neutral. If the neutral wire is disconnected accidently, what will be the voltage across a 150 W lamp (L₂)?

160 V

120 v

180 V

240 V

160 V

120 v

180 V

240 V

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MGVCL Exam Paper (30-07-2021 Shift 3)
The maximum value of power factor is and it exists in a pure circuit.

1, resistive

1, inductive

0.866, resistive

0.866, inductive

1, resistive

1, inductive

0.866, resistive

0.866, inductive

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MGVCL Exam Paper (30-07-2021 Shift 3)
The sites where the capacity factor is ____ are not considered suitable for wind power generation.

less than 12%

greater than 12%

greater than 24%

less than 24%

less than 12%

greater than 12%

greater than 24%

less than 24%

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MGVCL Exam Paper (30-07-2021 Shift 3)
In a single phase energy meter, the pressure / voltage coil is wound on

the edges of the limb on the laminated core

both the limbs of the laminated core with different turns

the centre limb of the laminated core / the middle limb of the shunt magnet

both the limbs of the laminated core with same turns

the edges of the limb on the laminated core

both the limbs of the laminated core with different turns

the centre limb of the laminated core / the middle limb of the shunt magnet

both the limbs of the laminated core with same turns

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MGVCL Exam Paper (30-07-2021 Shift 3)
A 3 pF capacitor is charged by a constant current of 2 pA for six seconds. The voltage across the capacitor at the end of charging will be

2 V

6 V

8 V

4 V

2 V

6 V

8 V

4 V

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MGVCL Exam Paper (30-07-2021 Shift 3)

MGVCL Exam Paper (30-07-2021 Shift 3) In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

MGVCL Exam Paper (30-07-2021 Shift 3) The maximum value of power factor is ____ and it exists in a pure____ circuit.

MGVCL Exam Paper (30-07-2021 Shift 3) The sites where the capacity factor is ____ are not considered suitable for wind power generation.

MGVCL Exam Paper (30-07-2021 Shift 3) In a single phase energy meter, the pressure / voltage coil is wound on

MGVCL Exam Paper (30-07-2021 Shift 3) A 3 pF capacitor is charged by a constant current of 2 pA for six seconds. The voltage across the capacitor at the end of charging will be

MGVCL Exam Paper (30-07-2021 Shift 3)
In transformer testing, Sweep Frequency Response Analysis (SFRA) testing is a tool to help locate ____

MGVCL Exam Paper (30-07-2021 Shift 3)
The maximum value of power factor is and it exists in a pure circuit.

MGVCL Exam Paper (30-07-2021 Shift 3)
The sites where the capacity factor is ____ are not considered suitable for wind power generation.

MGVCL Exam Paper (30-07-2021 Shift 3)
In a single phase energy meter, the pressure / voltage coil is wound on

MGVCL Exam Paper (30-07-2021 Shift 3)
A 3 pF capacitor is charged by a constant current of 2 pA for six seconds. The voltage across the capacitor at the end of charging will be