ZW32F-12 watchdog demarcation switch is used for AC 50Hz, voltage 10~12kV three-phase power system. It is used for breaking and closing load current. It has overload and short circuit protection function, quick-break protection function and time-delay protection. Function, automatic reclosing function, can also be equipped with lightning arrester or isolating switch according to user needs (ie circuit breaker and isolating switch combination, hereinafter referred to as "combined intelligent circuit breaker"). The intelligent circuit breaker has its own power supply, which can be nearby. Remote control operation, equipped with CT, PT interface, can meet the requirements of telemetry. The circuit breaker has arc extinguishing device, so the circuit breaker can operate with load, not only can operate the load current, but also operate the fault (short circuit) current; the circuit breaker has good In the form of a package, simply observing the circuit breaker does not intuitively determine that it is in a closed or open position.

     The isolating switch does not have an arc extinguishing device. Although it is stipulated in the regulations that it can operate in a load current less than 5A, it generally cannot be operated with load. However, the isolating switch has a simple structure, and its operating state can be seen at a glance from the appearance. Obvious disconnection point.

    The ZW32 watchdog circuit breaker can be operated manually, electrically operated, remotely operated and remotely operated. The circuit breaker is composed of three parts: the body, the operating mechanism and the controller (the isolating switch is selected and installed by the user). The circuit breaker can be configured with CT (protective current transformer), ZCT (zero sequence current transformer), and u (voltage transformer) as the detector of the controller.

The ZW32 watchdog circuit breaker is equipped with controllers with different functions to form intelligent switches, and can construct various forms of distribution network automation systems, and can be upgraded gradually.

Product main advantages

● High-quality stainless steel foreign products make the products exquisite;

● Optimized spring operating mechanism design with high reliability;

● Perfect combination of functions to meet the needs of users at different levels;

● Add single or double isolation knife gate to form a combiner with obvious isolation fracture to facilitate line maintenance;

● Add assembly network automation controller to form chapter sealer, sectionalizer or contact switch to realize fault identification, fault location and fault isolation of feeder line;

● Automatic controller with metering function to realize centralized management of power supply for feeder lines;

● Install power electronic PT controller to provide on-site operation power supply and automatic protection of power supply lines;

● Install controllers that function within the boundary and out-of-boundary faults to achieve automatic isolation of faults within the boundaries of responsibility;

● Adding a voltage transformer with built-in fuse (built-in) to achieve the simplest operation of providing operating power and outdoor installation and debugging on site;

● Fully meet the requirements of domestic and international standards such as GB, JB and IEC.