The Introduction of Circuit breaker

Circuit breaker is a kind of fundamental low voltage apparatus. Circuit breaker has the function of overload, brief circuit and below voltage protection. It is a switching device which can turn off the present below the regular condition from the regular return and can shut off the current under the situation of the specified time and also the open circuit situation. There are lots of kinds of the circuit breaker, so it will introduce a number of from the most representative, such as the vacuum circuit breaker, molded case circuit breakers, mini circuit breakers, earth leakage circuit breakers.

Operating principle of vacuum circuit breaker is the butt joint. It is named the Vacuum Circuit Breaker because of its arc extinguishing medium and the insulation from the contact gap after the arc is high vacuum. The utility model has the benefits of small volume, light weight, applicable for frequent operation, arc not necessary for checking the benefits, so it's used much more extensively in high voltage electrical gear in distribution network within the metalclad withdraw switchgear, the two-tier cabinets along with a fixing cabinet as manage and protection for.

Molded case circuit breaker's working principle is to type a utilizing linear get in touch with shoe conductor from the supply side and also the load side of the fixed contact shoe, thereby reducing the cutout portion of the size, and alter the configuration of the structure of fixed contact shoe along with a movable get in touch with shoe, so that when present flows through the movable contact shoe may be to rapidly open, movable get in touch with shoe when electric present flows via the applied electromagnetic repulsion will drive open, thereby cutting off the circuit protection function.

Mini Circuit Breaker also referred to as micro circuit breaker, with advanced structure, reliable overall performance, high reliability, stunning appearance, small and other characteristics, can also be used in normal situations as the line is not frequent operation conversion, mainly for AC 50HZ or 60HZ, rated voltage 400V, the amount of working present is 63A. Commonly used miniature circuit breakers to disconnect the circuit is mechanical the miniature circuit breaker moving contact and also the fixed get in touch with separately, and closing with rather than mechanical movement makes the movable contact and the fixed get in touch with are closed.

Earth Leakage Circuit Breaker is utilized towards the prevent electric shock, which ought to be chosen according by the various requirements of direct contact and indirect get in touch with with two kinds of electric shock protection. Generally used leakage circuit breaker is divided into two kinds of voltage and current, while the present kind is divided into two sorts of electromagnetic and electronic. Electric leakage circuit breaker is used to prevent the electric shock, which ought to be chosen according to the various requirements of direct contact and indirect get in touch with with two sorts of electric shock protection. Due to the harm of direct contact electric shock is relatively large, the consequences are serious, so we ought to select the higher sensitivity of leakage circuit breaker.

 By cutting off the function of circuit breaker, through the load circuit and the fault circuit, to prevent the accident to expand, so as to ensure secure operation. In every day life, it has a wide range of applications, which provides a good assure for the security of every day life.( Dry Type Transformer Manufacturer)