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Can a bad circuit breaker on a 3 phase motor cause the motor to run backwards?
Wiki User
∙ 13y ago
No.
If the motor runs backwards, swap any two phases to reverse the rotation, like this:
Old wiring:
phase A - brown wire - motor lead T1
phase B - yellow wire - motor lead T2
phase C - orange wire - motor lead T3
New wiring:
phase A - brown wire - motor lead T2
phase B - yellow wire - motor lead T1
phase C - orange wire - motor lead T3
Wiki User
∙ 13y ago
Wiki User
∙ 12y agoNo! The motor will not stop and reverse on it's own. But if your question is "can you reverse a single phase motor, the answer is usually, if the right number of wires are brought out from the winding.
Wiki User
∙ 12y agoHuh?
If you put 3 phases to a motor wound for single phase your going to make it smoke.
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How do you choose circuit breaker all the control circuit if i have 50kw power of motor?
The breaker should be sized to 250% of the motor's full load amperage.
Cause of a circuit breaking tripping?
Tripping is caused by excessive current, which is usually the result of a fault in cable or equipment. The circuit breaker is there for safety and it trips to prevent a possible fire starting.
What is Selection procedure for motor protection circuit breaker?
The selection of overload protection for motors is taken from a table in the electrical code book. It is based on the full load current rating of the motor.
What is the reason for using 250 percent multipler for sizing motor circuit breakers in NEC?
When a motor starts the circuit breaker sees an almost dead short. Until the motor starts generating a back EMF , which opposes the current flow when rotation starts, the current is high. If the breaker is sized to the motors full load amperage, each time the motor is started, the breaker will trip.
Why motor protection circuit breaker is not used in star delta starter?
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What would cause a refrigerator to overload the circuit breaker?
Something wrong with it like a bad motor.
What circuit breaker rating do you need for a 3 phase electric motor?
The circuit breaker is sized to the full load amps of the motor times 250%.
How do you choose circuit breaker all the control circuit if i have 50kw power of motor?
The breaker should be sized to 250% of the motor's full load amperage.
Cause of a circuit breaking tripping?
Tripping is caused by excessive current, which is usually the result of a fault in cable or equipment. The circuit breaker is there for safety and it trips to prevent a possible fire starting.
What is Selection procedure for motor protection circuit breaker?
The selection of overload protection for motors is taken from a table in the electrical code book. It is based on the full load current rating of the motor.
Where is the motor relay circuit breaker located on a 1989 mustang?
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What will cause electric motor to shock you when you touch it?
The motor winding has gone to ground internally. The ability of the motor to shock you is caused by the ground wire missing or not connected. It is this ground wire that trips the breaker in short circuit conditions and disconnects the motor from the distribution system.
What is the reason for using 250 percent multipler for sizing motor circuit breakers in NEC?
When a motor starts the circuit breaker sees an almost dead short. Until the motor starts generating a back EMF , which opposes the current flow when rotation starts, the current is high. If the breaker is sized to the motors full load amperage, each time the motor is started, the breaker will trip.
How do I repair a Passenger side window that won't operate and the motor is still good on a 97 maxima?
if the the motor is good you need to check the circuit breaker because the circuit breaker might be the problem. window doesnt go bad my dude the motor goes bad check it again
Why motor protection circuit breaker is not used in star delta starter?
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Is there a circuit breaker or relay for windshield wiper motor on 91' Lincoln town car?
Should be a breaker in the power distribution box under hood
