Answer / deepak24

starter are used because of the following reason-
1. to start and stop motor
2. for protection (short circuit protection, open circuit protection, thermal protection, over voltage etc.)
3. to improve starting torque of motor
4. to limit the starting torque

Answer / nishwa

stat and stop operation,
to limit the starting current(star delta starter),
over load current and fault current and shot circuits current that current sense by relay,
variable speed operation

Answer / sainianil

starter is mainly used for the protection of machine and we with the help of starter we can able to isolate the machine from the main power supply in case of fault ,
the following items used in starter are:-
1 isolator: to cut the main supply to the machine without effecting the system
2 fuse: for shortcircuit protection
3relay for the overcurrent
4 contactor controlled by the control ckt

now a days it is replaced by the MCB because of its longlife..{FOR SHORT CKT AND OVERCURRENT}

Answer / nupurpatel

To start and stop the motor,
To limit the starting current,
To limit the high starting torque.

Answer / pitchi reddy

To limit the starting current and to protect machine for high currents

why transformer rating is mentioned in kva?

1 Answers   JK Electric Works,

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is synchrnous pannel is need for two eqal rating transformers to run in parallel

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sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

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A thermistor is a type of

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how to calculate current and voltage in a same circuit?

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