It is another way of stating that the circuit breaker has tripped due to an over current.
Main circuit circuit breaker
MCB, Miniature Circuit Breaker is electric switch which is used to protect against short circuits
In the US a miniature circuit breaker, sold in a single unit, is about 15$, about the same as a regular breaker. If sold as a double unit, meaning two mini breakers installed into one housing, then it is about 25$.
A contactor is an electrically controlled switch. It is used for switching a power circuit. A contactor is controlled by a circuit which has a much lower power level than the switched circuit.
== == If the current in an ac power circuit is not balanced between hot and neutral, possibly meaning some of the current is going through a human being to ground, a GFCI breaker or receptacle will break the circuit to keep the person from being electrocuted.
AF refers to the ampere rating of the breaker frame and AT refers to the breaker trip rating in amps. These are not breakers that you would find in your home but industrial molded case breakers. The current trips can be changed out to different values all within the same frame size
250AF refers to the ampere rating of the breaker frame and 200AT refers to the breaker trip rating in amps. These are not breakers that you would find in your home but industrial molded case breakers. The current trips can be changed out to different values all within the same frame size.
The meaning of 'electronics' is study and application of electrons. So its malayalam meaning would be ' electronukalae sambandhikkunna shaasthram '.
Electronics refers to anything that requires electricity to run. A semi conductor is a material that has some properties of a conductor, meaning it allows electricity to flow through it well and some properties of an insulator, meaning it does not allow the flow of electricity through it well. Semi conductors are used extensivly in modern electronics and circuit boards. the queastion makes no sense - check what you are asking
That will draw about 9 amps at 120V. A 15 amp breaker if the circuit conductor is #14 or 20 amp breaker if the circuit conductor is #12. As always, if you are in doubt about what to do, the best advice anyone should give you is to call a licensed electrician to advise what work is needed. Before you do any work yourself,on electrical circuits, equipment or appliances,always use a test meter to ensure the circuit is, in fact, de-energized.IF YOU ARE NOT ALREADY SURE YOU CAN DO THIS JOBSAFELY AND COMPETENTLYREFER THIS WORK TO QUALIFIED PROFESSIONALS.
The "AF" stands for the Frame Ampere rating, so in this case will be 400 Amp Frame. The "AT" stands for Trip Ampere rating, and in this question will be 300 Amp Trip.
It is Ratio between Voltage appearing across Faulty phase before interrupting faulty current to Voltage appering across all three phase after failt has been cleared. It is designed as 1.3 for Solidly grounded system and 1.5 for Ungrounded syste. From:Sanjay Rathod ESSAR STEEL LTD(MRSS)