MGVCL Exam Paper (30-07-2021 Shift 3)
The most commonly used method for the protection of three phase feeder is

Reverse power protection
Time graded protection
Differential protection
None of these

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MGVCL Exam Paper (30-07-2021 Shift 3)
Continuous and rapid variations in the load current magnitude which causes voltage variations is known as

Voltage distortion
Voltage sag
Harmonics
Flicker

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