MGVCL Exam Paper (30-07-2021 Shift 3)
Two-wattmeter method is used to measure the power taken by a 3-phase induction motor on no load. The wattmeter readings are 400 W and -50 W. Calculate the reactive power taken by the load

350√3 VAR
450/√3 VAR
450√3 VAR
350/√3 VAR

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MGVCL Exam Paper (30-07-2021 Shift 3)
What are the main challenges that the electric grid faces?

All of these
Increase in Energy Demand
Global rise in temperature
Reliability and Power Quality is Declining

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MGVCL Exam Paper (30-07-2021 Shift 3)
The DC offset in fault current causes conventional over-current (OC) relays to :

over-reach
under-reach
sometimes under-reach and sometimes over-reach
reach remains unaffected due to DC offset

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