A star connected synchronous generator rated at 500 MVA, 50 kV has a reactance of 0.5 pu. Find the ohmic value of the reactance.

MGVCL Exam Paper (30-07-2021 Shift 3)
A star connected synchronous generator rated at 500 MVA, 50 kV has a reactance of 0.5 pu. Find the ohmic value of the reactance.

0.25 Ω

0.1 Ω

1 Ω

2.5 Ω

0.25 Ω

0.1 Ω

1 Ω

2.5 Ω

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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

350√3 VAR

450√3 VAR

350/√3 VAR

450/√3 VAR

350√3 VAR

450√3 VAR

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

Increase in Energy Demand

Global rise in temperature

All of these

Reliability and Power Quality is Declining

Increase in Energy Demand

Global rise in temperature

All of these

Reliability and Power Quality is Declining

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MGVCL Exam Paper (30-07-2021 Shift 3)
Which among these components connects to physical equipments of the distribution system?

None of these

Central control room with host computers

Remote Terminal Unit

Communication infrastructure

None of these

Central control room with host computers

Remote Terminal Unit

Communication infrastructure

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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 :

reach remains unaffected due to DC offset

sometimes under-reach and sometimes over-reach

under-reach

over-reach

reach remains unaffected due to DC offset

sometimes under-reach and sometimes over-reach

under-reach

over-reach

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MGVCL Exam Paper (30-07-2021 Shift 3)
Medium voltage covered conductors (MVCC) are produced in voltage rating

beyond 200 kV

between 6.6 kV to 33 kV

less than 3.3 kV

between 132 kV to 200 kV

beyond 200 kV

between 6.6 kV to 33 kV

less than 3.3 kV

between 132 kV to 200 kV

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

MGVCL Exam Paper (30-07-2021 Shift 3) A star connected synchronous generator rated at 500 MVA, 50 kV has a reactance of 0.5 pu. Find the ohmic value of the reactance.

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

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

MGVCL Exam Paper (30-07-2021 Shift 3) Which among these components connects to physical equipments of the distribution system?

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

MGVCL Exam Paper (30-07-2021 Shift 3) Medium voltage covered conductors (MVCC) are produced in voltage rating

MGVCL Exam Paper (30-07-2021 Shift 3)
A star connected synchronous generator rated at 500 MVA, 50 kV has a reactance of 0.5 pu. Find the ohmic value of the reactance.

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

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

MGVCL Exam Paper (30-07-2021 Shift 3)
Which among these components connects to physical equipments of the distribution system?

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

MGVCL Exam Paper (30-07-2021 Shift 3)
Medium voltage covered conductors (MVCC) are produced in voltage rating