The Introduction of Circuit breaker

Circuit breaker is really a kind of basic 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 current under the normal situation of the normal return and can shut off the current under the condition from the specified time and the open circuit condition. There are lots of kinds from the circuit breaker, so it'll introduce several 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's named the Vacuum Circuit Breaker because of its arc extinguishing medium and the insulation of the get in touch with gap after the arc is higher vacuum. The utility model has the benefits of small volume, light weight, applicable for frequent operation, arc not necessary for checking the advantages, so it's utilized much more extensively in high voltage electrical gear in distribution network within the metalclad withdraw switchgear, the two-tier cabinets and a fixing cabinet as manage and protection for.

Molded case circuit breaker's working principle is to form a utilizing linear contact shoe conductor of the provide side and the load side from the fixed get in touch with shoe, thereby decreasing the cutout portion from the size, and change the configuration of the structure of fixed get in touch with shoe along with a movable contact shoe, so that when present flows via the movable contact shoe may be to quickly open, movable get in touch with shoe when electric present flows through 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, dependable overall performance, higher reliability, stunning appearance, little and other characteristics, may also be used in normal situations because the line isn't frequent operation conversion, mainly for AC 50HZ or 60HZ, rated voltage 400V, the quantity of operating current is 63A. Generally used miniature circuit breakers to disconnect the circuit is mechanical the miniature circuit breaker moving contact and the fixed get in touch with separately, and closing with rather than mechanical movement tends to make the movable get in touch with and the fixed get in touch with are closed.

Earth Leakage Circuit Breaker is utilized towards the stop electric shock, which ought to be selected according by the different specifications of direct get in touch with and indirect contact with two kinds of electric shock protection. Commonly used leakage circuit breaker is divided into two kinds of voltage and current, while the current kind is divided into two sorts of electromagnetic and electronic. Electric leakage circuit breaker is utilized to stop the electric shock, which ought to be chosen according to the different specifications of direct get in touch with and indirect get in touch with with two kinds of electric shock protection. Due to the harm of direct contact electric shock is relatively large, the consequences are severe, so we ought to choose 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 safe operation. In daily life, it has a wide selection of applications, which offers a great assure for the safety of daily life.( Dry Type Transformer Manufacturer)