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?

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

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

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

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