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IF we have three 30KW motor, these motors are connected in
DOL, star-delta and VFD respectively, what will be the fuse
rating for the above three?
- 7 Answers
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Answer / g.bhaskar reddy
IF MOTOR FUSE RATING IS 3 TO 4 TIMES OF THE MOTOR FULL
CURRENT.
| Is This Answer Correct ? | 2 Yes | 1 No |
Answer / raymondraju05@gmail.com
30kw motor full load 54amps starting current upend on type of rotor like(single,double,deep bar cage) so single cage 4 to 5 times, double cage 3 to 31/2 times, deep bar 2 to 3 time at the time of starting. Now we can decide to witch of motor used as say above.
| Is This Answer Correct ? | 0 Yes | 0 No |
Answer / gak
30KW DOL FLC= 52.5A, 30KW FASD FLC= 31.5A So 63A Fuse for
DOL & 50A for FASD
| Is This Answer Correct ? | 0 Yes | 1 No |
Answer / sanduri ramesh babu
3-phase 30kw means 40.21Hp, so rated current is 60amps. We
can use 60amp rating.
| Is This Answer Correct ? | 0 Yes | 3 No |
Answer / sudhakar
30Kw motor taken 60amp's so we arange 350amp's fuse rating
| Is This Answer Correct ? | 1 Yes | 4 No |
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