#What is a mccb circuit breaker series#

#What is a mccb circuit breaker series#

It is used in series with proper grounding, they can safeguard against electrocution when the current exceed certain limit or if there is short circuit in the electric system it will be automatically disconnect the load. Need for Circuit BreakerД¬ircuit breaker is a very important part of any electrical system. As the trip coil start working like a magnet it will pull the rod and the line will be break. The rod in the circuit breaker is connected. The trip coil will be energized and it will start working like a magnet. The relay will sense that faulty current occur the relay coil will make mmf this coil work like a magnet it will pull the relay contacts and the joints will be close. When the faulty current occur the current in the primary coil of current transformer will be increased due to which current in secondary coil of current transformer will also be increased. For example we have 100A of current in the line of primary coil of current transformer while the relay operate on 5A current then the current transformer will convert 100A current to 5A current through secondary coil the relay will get 5A. The current transformer converts high current in low current. Now let us consider the above diagram in which current transformer is connected with circuit breaker. To remove this arc we use circuit breaker. This arc is dangerous for circuit if it is in huge amount. The medium oil or air which is present between them their ions will be ionized which will create conducting path due to which arc will be developed. When faulty current produce the moving contact trap energized moving contact separate from fix contact the area will be reduced due which its current density will be increased and heat will be generated due to which radiation will be produce. The moving contact is connected with fixed contact.

A few days back I posted an article about вЂњ electric motor trippingвЂќ, which explains the practical use of a circuit breaker with common issues solved.Д¬ircuit breaker consists of two contacts one fixed and other is moving contact.

When the fault in the system is removed it will be simply switched on they do not require replacing and can simply be reset. Circuit breaker operates automatically by measuring heat or current flowing through the circuit if the current exceeds a pre-set limit, the circuit breaker will вЂtripвЂ™ and sever the electricity supply as quickly as possible it will disconnect the electricity load. Difference between MCB and MCCB circuit breakersД¬ircuit breaker is very useful equipment for switching and protection of various parts of power system.Difference between fuse and circuit breakers:.