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GETCO Exam Paper (22-07-2015)

GETCO Exam Paper (22-07-2015)
The magnitude of sum of two sinusoidal AC voltages is equal to the magnitude of each individual voltage, What must be the phase difference between voltages?

180
120
60
90

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GETCO Exam Paper (22-07-2015)
For formation of the Y bus matrix (using node voltage analysis) in power system network modelling _____ is used

all are correct
KVL
Faraday's law
KCL

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GETCO Exam Paper (22-07-2015)
No load efficiency of tranformer is _____ than full load efficiency

same
lesser
depends on load
greater

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GETCO Exam Paper (22-07-2015)
What is the surge impedance loading of 400 kV line with surge impedance given as 160 Ω

1000 MW
250 MW
1000 kW
400 MW

ANSWER EXPLANATION DOWNLOAD EXAMIANS APP

SIL = (kV)²/Z₀

GETCO Exam Paper (22-07-2015)
Which power plant may take several days to start up and shunt down?

Base load
none of these
solar power plant
Peak load

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GETCO Exam Paper (22-07-2015)
Shunt compensation in EHV line is resorted to

Increase line impedance
Improve voltage profile
Improve the stability
Reduce the fault level

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MORE MCQ ON GETCO Exam Paper (22-07-2015)

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