if the armature current in a dc generator is ac (
sinusoidal ) why doesnt the sjhape af armature mmf a
sinusoidal (ni) ? armature mmf in case of a dc machine is
triangular.
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If the circuit breaker will not close or it will trip, what will you do?
IN SINGLE PH TRANSFORMER IF LEKAGE IMPEDANCE DROP IS NEGLECTED ,THE FLUX IN THE MAGNETIC CORE and the lekage flux linking a winding are a)proportional to the applied v to the winding i respectively.
why we can't use more then 50 hz in india ? Is it possible ?
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please anybody help me to find out the BHEL trainee Exam previous year questions papers . if u ve pls. send it to surekhared@gmail.com
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how many types of grounding?
I have a 3 phase 600 volt prim. feed and a 120/208 sec. Isolateing tranformer .We are using this system for safety against shock . What is the proper grounding ?? Does the common on sec. get earth ground ???
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