consider a 3phase induction motor,it is a selfstarting
device.Eventhough it is a selfstarting one we are connecting
this device to starter because if we can not connect this
motor to stator because of sudden flow of currents in the
rotor windings some damage may takes place to the machine.so
we can start up the motor with starter means we can limit
the currents to certain value upto which the rotor gets
accelerated.When ever rotor attained its rated speed then
there is no problem of current flow.
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can any one suggest paper presentation topies for
I am abt to give IOCL intrv.Plz sir guide me for IOCL intrvw
(Electrical).Which subject to be consider. questions are
generally asked from which subject.Plz help me out.
Why reactors use before incoming of ac vvfd drive?
Can double compression glands be used with regular cables?
1.what is the reason for transformer and lightning arrester
blast in 33kv system
electromechanical relay type identification
example : type=tjmh
for a 500 KVA connected load, I calculated 30% of capactor
for power correction. Even after using 225 KVR capactor PF
is not improving.
What could be reason for low Phase correction factor?
How is efficiency of DG set calculated? At many places I found
the efficiency to be mentioned in percentage. But at some
other places I found kWH/ litres. I want to know how
dimensionless percentage value is arrived at?
Please tell me in DETAIL about the following 3 types of fuses or recommend me a good power system protection book or a website link ?
3.Empulsive fuse (not sure if its impulsive or explosion fuse , sorry)
What is the RME and explain the full form and what is the RME work?
What is the name of transformers oil filteration equipment?
what is the voltages using in movie theaters??? why ??why not
what about SAP/MRP regarding manufacturing of electric
motors and all drives?
when u are given a timer,push buttons and contactor, how do
i practically make a star delta control circuit and a direct
online control circuit?