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We have 800KW motor operating at 6600Volt,50 Hz
supply.During 1st startup it tripped on overcurrent
trip.It's FLA is 88 Amps.The K factor of Thermal overloaaad
was set on .94 initially.then we set at 0.97 and then it
started fine.i dont understand why it tripped first?What
are the protections which comes in picture during starting ?
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Answer Posted / prabhukumar
we all know that the starting current of motor is 5 times
more than of rated current.
for the starting current also some settings will be their
in that the starting current time may be less and the
starting time the heat will be their.
You just check it out and tell me.
prabhu.jsw@gmail.com
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