TYW1 series of intelligent type air circuit breaker ( hereinafter referred to as the circuit breaker ), the circuit breaker is applicable to the exchange of 50Hz, rated voltage 400V, 690V, rated current 6300A and below the power distribution network, to the distribution of power and protecting the circuit, preventing power equipment from overload, short circuit, overvoltage, single-phase grounding fault hazard. Circuit breaker protection with intelligent, selective protection range and precision, can improve the reliability of power supply.

The AC rated current 630A to 6300A; the short-circuit breaking capacity of 80kA～ 100kA ( effective value);

Having 3 level and 4 level; the drawer type and fixed type;

Having isolation function; the high breaking capacity, zero flashover;

The intelligent controller, to provide different functions; may progress line or line;

The implementation of IEC60947-2, GB14048.2-2001 standard; the national mandatory product certification " 3C" mark.

The normal working conditions and installation conditions

The ambient air temperature is -5 ℃~ +40 ℃, and the mean value of 24h is less than +35℃( special orders except);

The location of the installation elevation not exceeding 2000m;

The installation site of the air relative humidity at the highest temperature is +40℃does not exceed 50%; at lower temperatures can have higher relative humidity, the humidity monthly average lowest temperature of less than +25℃, the monthly mean maximum relative humidity of not more than 90%, and considered due to temperature change occurs on the surface of the product the gel;

The pollution grade 3;

The main circuit and the circuit breaker under-voltage release coil, power transformer primary coil installation category is IV, other auxiliary circuit, control circuit installation category iii;

The breaker should be according to the specification requirements for installation of installation. Circuit breaker vertical inclination of not more than 5°;

The circuit breaker installed in the cabinet body chamber, and an additional frame, protection level of IP40; installing frame and a sealed transparent cover, protection level of IP54.

The structure and function of

Basic function

The long-time delay overload, short circuit short-time delay short circuit, instantaneous, single-phase grounding protection function;

The show features: setting current, action current display;

The self-check function: overheat protection, microcomputer automatic diagnosis;

The fault memory: fault current time value, phase sequence memory;

The test function;

Optional function

The load monitoring;

The function table function;

The broken line diagnostic function;

The MCR through breaking and the tripping function;

The RS485 serial communication interface;

The harmonic influence coefficient display function.

The structure profile

Circuit breaker has the advantages of compact structure, small size and other characteristics. Circuit breaker main body composed of an insulating shell, a contact system, intelligent tripper, operating mechanism, electric energy storage mechanism and other components. Fixed breaker is composed of a main body and mounting plate; drawer type circuit breaker is composed of a main body and the drawer seat, the drawer seat rails can drive circuit breaker body to pull into pull, it has three working positions: " connected ", " test ", " separation ", position changes through the handle moved to achieve. The three position is directed through the drawer bottom base white pointer display.

When in the " connected " position, the main circuit and the two circuit are connected; when in the " test " position, only the two loop is switched on, the main loop is disconnected, this location can be some necessary test; when in the " separation " position, the main loop, a two loop disconnects.