how we select fuse rating for motor?
Answers were Sorted based on User's Feedback
fuse rating is selected depending upon the full load current of the motor , generally 1.5 times higher then the full load current.
Is This Answer Correct ? | 16 Yes | 2 No |
Answer / arulkumaran
FUSE RATING = CURRENT RATING * 1.25
(e.g) motor current rating = 8 ampetre
fuse rating = 8 * 1.25
= 10 ampere
Is This Answer Correct ? | 8 Yes | 1 No |
Answer / os
Code F: 2.5 X FLA
No Code Letter: 2.5 X FLA
Wound Rotor 1.5 X FLA
Is This Answer Correct ? | 3 Yes | 6 No |
Answer / alpesh chauhan
dear friends, fuse is provided as backup protection for relay and is for short ckt and ground fault protection. Its rating is depend upon relay rating. Not upon motor.
Is This Answer Correct ? | 1 Yes | 12 No |
Answer / dany
fuse rating will be decided by the line current of the
motor ,but not on the basis of armature currentor field
current
for ex if line current is say13.6amps ,then fuse should be
13amps
Is This Answer Correct ? | 3 Yes | 27 No |
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