30 KW MOTOR NOMALLY FULL LOAD 54 AMPS, BUT WITH OUT LOAD
30% CURRENT WILL TAKE,ANY THREE PHASE INDUCTION MOTOR WITH
OUT LOAD 30PERSENT CURRENT WILL TAKE.
to calculate the P=root 3*line voltage *line current. By
substituting the values we can calculate fullload current
to know the no load current we have to know the RPM
usutken 40 % of full load currrent is taken on noload
No load current of a 3phase induction motor varies
according to its KW and rpm. Normally as a thumb rule
fraction HP motors (below 2.2KW) will be 50% of full load
current. Above 2.2KW may be 20% to 30% OF full load
current.
no standerd farmulla to calculate the noload current but as
a thumbrule 3 ph induction motor will draw 30% current on
no load but few motor will take 50 to 60 % current
Actually,there is no standard formula to calculate the
noload current of the motor.Normally 25% to 40% of full
load current of the motor.Also depending upon motor KW and
supplier..
pls tell about gas insulated substation?which gas is used
for that substation?above which rating we are used this
substation?how we take maintenance in that substation?it
means substation fully shutdown or live condition?if live
condition means how?pls clear this things
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