GETCO Exam Paper (22-07-2015)
An over-current relay of current rating 5 A and setting 150% is connected to a 200/5 A CT. Then the relay to pickup, the line current required is
The rating of given on the name plate of a transformer indicates the:Apparent power which it can supply S=V( supplied voltage)*I (load current) active power = v* i*cosφ reactive power = v* i*sinφ
three types of electric breaking: Regenerative breaking( leads to economic and energy consevation) pugging (more efficient method of breaking) rheostatic breaking
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