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

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โˆ™ 2011-08-11 09:43:38
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Q: Rupturing capacity of a circuit breaker?
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What is the difference between making capacity and breaking capacity of a circuit breaker?

Making capacity of a circuit breaker is the maximum current which the breaker can conduct at the instant of closing. Breaking capacity of the circuit breaker refers to the maximum current that the circuit breaker can interrupt.


What is the difference between the rupturing capacity and the short circuit breaking capacity?

Rupturing capacity:Rupturing capacity or breaking capacity expresses the current that a circuit breaker is capable of breaking at a given recovery voltage under certain set conditions of operation. It is expressed in MVA The set conditions are power factor,recovery voltage and rate of rise of restriking voltage. When the current broken is symmetrical it is called symmetrical breaking capacity. When the current broken is asymmetrical it is called asymmetrical breaking capacity. It is common to designate circuit breaker capacity based on asymmetrical breaking capacity. Breaking capacity of a circuit breaker =√3xVxIx10-6MVA Short circuit breaking capacity: It is the highest value of short circuit current which a circuit breaker is capable of breaking under specified conditions of transient recovery voltage and power frequency voltage. It is expressed in kA. The breaking current is expressed in two ways1)The r.m.s value of a.c component of current at the instant of contact separtation.2)The percentage of d.c component of current at the instant of contact separtation. While selecting the circuit breaker for a particular location in the power system the fault level at that point is determined.


Breaking capacity in circuit breakers?

what is meaning breaking capacity breaker


What is standard breaking capacity of circuit breaker?

There isn't a 'standard' breaking capacity for circuit breakers. It varies according to the load supplied by the circuit breaker and the calculated overcurrent for that load.


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

6KA or 10KA


What is the Electrical circuit breaker making and making capacity?

It is usually printed on the circuit breaker in KA Killo Ampere. That is thousands of Amps.


When setting up a breaker box how do you determine circuit breaker capacity?

find amphere required


Could a bad circuit breaker effect a different circuit?

If the faulty circuit breaker was heating up and the adjacent breaker was near its amperage capacity, a rise in ambient temperature on the adjacent breaker could lower the set trip point and the breaker could trip.


How do you find fuse capacity in house lightning?

To find the circuit's capacity you have to look at the breaker or fuse that protects that circuit. On the handle of the breaker you will see a number. that number is the tripping capacity of that particular breaker. On a glass screw in fuse you will see a coloured disk with a number on it that is the capacity that the fuse can handle before opening the circuit. On cartridge fuses the voltage and amperage rating will be printed on the body of the fuse.


Could a faulty circuit breaker effect another circuit in the same box?

If the faulty circuit breaker was heating up and the adjacent breaker was near its amperage capacity, a rise in ambient temperature on the adjacent breaker could lower the set trip point and the breaker could trip.


What is KAIC means in a circuit breaker?

Killo Amp interrupting capacity. Eg.: 14KAIC this meas that your CB is capable to handle 14 kiloampered fault current with out damaging your circuit breaker.. Killo Amp interrupting capacity


Is the main circuit breaker is a sum of the sub circuit breaker?

no main circuit breker =circuit breaker

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