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

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

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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?

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

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