GETCO Exam Paper (22-07-2015)
In differential protection scheme, a stabilizing resistance connected to

increase the relay sensitivity
block harmonics
reduce the effect of non identical CTs
increase the current limit

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GETCO Exam Paper (22-07-2015)
Which of the following is a reason to decouple AVR and LFC loops when there is a shortage of reactive power?

angle of the voltage is not considered
Change in voltage magnitude marginally affects real power
AVR loop response is slower than LFC loop
deference of error is the main reason

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GETCO Exam Paper (22-07-2015)
Which of the following is the wrong statement in terms of slack bus?

it should be the largest generator bus in the system
it should be located at the centre of the area
it has finite reactive power generation capability
voltage and angle is specified at this bus

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