why starter use to on a motor
Answers were Sorted based on User's Feedback
Answer / deshmukhgs
to avoid burning of the motor because of high curent
Is This Answer Correct ? | 12 Yes | 1 No |
Answer / mohsin jamil
because motors start slowly with high torque and bcz of high
torque it needs high amp until it reaches to its full speed..
thats why we use Star connection or start the motor slow so
that motors winding doesn't burn
Is This Answer Correct ? | 6 Yes | 2 No |
Answer / muthu kumaran
initially there is no back emf in motor and so current due to the supply voltage flows fully thru the motor.
for EX:230v supply resistance of motor is 0.15ohm -->I=230/0.15=1350.but the rated I is 45A.so that the motot gets damage.so we need to use the starter
Is This Answer Correct ? | 2 Yes | 0 No |
At the starting time 'EB=0'(back emf) so that
motor draws a 2 to 3 times of its full load current
and which cause to damege the winding. ummm....
That is why using stater to reduse starting current
Is This Answer Correct ? | 0 Yes | 0 No |
Answer / simpson
when the motor is in off position the starting winding’s
resistance is 0 ohm .If in this condition 3 Phase 440 v is
directly applied on it the result will b blow of the starting
winding .Hence huge amount of heat will produce .
Is This Answer Correct ? | 0 Yes | 1 No |
opkinson's test
in alternator why on load terminal voltage is less than no load teprminal voltage
What is Electricity?
testing of transformer
Why we use mostly circular coil in transformer? not square or rectangular type of coil.
2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping
which is the best institute for PLC,SCADA,DCS in hyderabad
Which standard i will refer for size of earthing conductor for equipment? (Eg:415V Switchgear, MCC, DB shall be 50x6mm GI flat)
where AVR is connected in power plant.
7 Answers ABB, Saudi Red Bricks,
what is the formulae for calculating the cable size for a given voltage and current.
what is differance bw ELCB and MCB. ?
what are the shades for mimic diagram i.e for 3.3kv,6.6kv,11kv,22kv and 33kv? which is the IS for mimic diagram?