In three-phase neutral ungrounded power supply and transformation systems, it can be used as a main switch, branch switch, and also for unbalanced starting control of large capacity motors.

Product features:

Each protection function, relay, and input of the logic function has a logic configuration function;

The control circuit device comes with an anti jump circuit, and both DC and AC can be equipped with anti jump;

Measurement function: high-precision measurement of current, voltage, active power, reactive power, power factor, frequency, zero sequence current, calculation of electrical degree;

Friendly human-machine interface with large screen graphic color LCD display, dynamic display, real-time waveform diagram, fault recording diagram, various electrical parameters and protection information. Chinese menu prompt, quick and convenient operation;

Zero sequence overvoltage protection, current type leakage protection, continuously adjustable current and time settings;

Fault time recall function;

Real time query of fault time curves such as current, voltage, and leakage;

Support user secondary programming and intervene in additional monitoring and control functions based on on-site needs.