Answer / k.prakashchandra

LOE relay acts ,as its name indicates, when excitation fais
either due to field breaker(FB) opening or some other
cause.When there is no excitation the gen will run as synch-
motor or induction generator if the prime mover still
running. In both the cases current will be drawn from the
system ,hence power flow is reversed .Then the relay acts
to actuate the master trip.Earlier this relay acted only
when FB opened, closing a switch in the opened position .

I don't understand why when we connect high voltage source in DC to electronic motor , we must add capacitor and resistor in parallel ? (I know that we use capacitor because we want to absorb the current that in the first second electronic motor in opposed with current course produce. ) what are the feature of Resistor and in such situation ?

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