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
In hopkinson test known as regenerative test two identical machine coupled D.C shunt motor D.C shunt generator temperature rise can be check under rated condition large machine can be tested without drawing much power.
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