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A bad circuit breaker. Replace it.

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โˆ™ 2005-03-19 16:22:24
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Q: What would cause a short periodic low hum to come from a circuit breaker?
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Related questions

What may cause breaker instantaneously trip?

A short circuit on the system will cause a breaker instantaneously trip.


What would cause a circuit breaker heating element to trip off?

There are two conditions that would cause a breaker to trip off. One is an overload of the circuit and the other is a short circuit on the circuit. The heating element within the breaker is what monitors for circuit overloads.


Can a circuit breaker on my 1992 grand prix cause my headlights to stay on?

No. A circuit breaker is like a fuse, it protects a circuit from a catastrophe if a dead short should occur.


What might cause a breaker to trip when switching on a light when resetting the breaker and checking the fuse doesn't restore power to one circuit?

Overloaded circuit, short in circuit, or defective switch.


What procedure should be followed when a circuit breaker trips?

Look for the cause of the trip and correct. Reset the circuit breaker. If it continues to trip it might be an overloaded circuit, loose connections in the circuit, or a short in the wiring somewhere.


What is a electric circuit breaker?

An electric circuit breaker is switch that is used to protect electrical circuit from a short circuit or overload.


Will short circuit wasting energy?

Short circuit blowing fuse or breaker.


Rupturing capacity of a circuit breaker?

the maximum short current that can be safely break by the circuit breaker.


Is it true or false that a circuit breaker must be replaced after a short circuit occurs?

A circuit breaker must be reset to ON after a short circuit but does not need to be replaced. It depends on the type of CB. A fuse is also a circuit breaker and it needs to be replaced after a short circuit. Relayed circuit breakers have to be "picked up" after a dropout and need not be replaced as such.


Will a short circuit cause smoke detectors to beep after resetting the circuit breaker?

If your smoke detector is bleeping you have a serious risk of fire and the circuit breaker must not be reset until the fault that caused it to trip is investigated.


What is the use of breaker?

Breaker or circuit breaker is a switch operated automatically by electricity. Breakers are designed to protect or to prevent an electrical circuit from short circuit or overloading.


An open circuit results when a hot wire touches ground?

A short circuit is the term for hot touching ground. This can cause a breaker to trip which will then open the circuit.


What is the different between a grounded circuit and short circuit?

Most circuits (not battery powered) require a ground, so are grounded circuits. A short circuit will cause the safety device (a fuse or breaker) to operate to isolate the short.


Is a circuit breaker a resistor?

No, a circuit breaker is a safety device that is used in a circuit to limit the amount of current in an overload or short circuit condition. The number on a breaker is the top end current that the breaker will handle before opening the circuit.


How does a circuit breaker use an electromagnet?

The electromagnet in the circuit breaker is used for instantaneous tripping if short-circuit condition arises. At defined current level the electromagnet develops the force high enough to cause the tripping of the mechanism.


How is circuit breaker operated?

A circuit breaker is an automatically operated electrical switch.Its protect an electrical circuit from damage over load and short circuit. A circuit breaker can be reset to resume normal operation.AnswerIt depends on the circuit breaker. A miniature circuit breaker, for example, contains a bimetallic temperature sensor (overload current protection) and a magnetic trip (short-circuit current protection). On the other hand a high-voltage circuit breaker contains no sensors but relies, instead, on external protective relays which, when activated, energise a trip coil within the circuit breaker, which trips the breaker.


What is the difference of isolator and breaker?

An isolator has no circuit protection included in its operation. It just opens or closes a circuit. A circuit breaker has circuit protection included in its operation. A breaker has both overload and short circuit protection in its operation.


Why do your headlights on your 92 crown Victoria flash while driving?

Headlights have a thermal circuit breaker. A short to the headlight (positive to ground) will cause the breaker to trip. The breaker cools and the lights come back on till the breaker heats up. Find the short and fix it.


Function of a breaker?

If you mean 'circuit breaker', then this is an overcurrent protection device, which means it protects a circuit against an overload current(caused by too heavy a load) or a short-circuit current (caused by a short-circuit fault).


What will cause a new circuit breaker to trip out continually and not reset when moved to the off position?

A short straight to ground. Unplug and disconnect everything from the circuit and then reconnect things one at a time until the breaker trips. That is your problem. (Also could be a bad breaker)


What is the advantage of a fuse over a circuit breaker?

IMO it would be because the circuit breaker has the possibility of going bad and not working (allowing a short to move through the device), but fuses blow (cause a break) no matter what if shorted.


How does a circuit breaker help protect against short circuits and circuit overloads?

Just as the name implies. It breaks the circuit, in other words,it throws the breaker.


What is the mean of CKT?

CKT is electrician short hand for circuit. A circuit is everything powerd by on circuit breaker


What is MCB In power electronics?

Miniature Circuit Breaker. It helps to break electric circuit when there is short circuit in it.


What is the rated short circuit capacity of the miniature circuit breaker used?

6KA or 10KA