Description:

Microcomputer based plant transformer protection set On-site operation of industrial-grade computer relay protection device for the rely, and in line with conventional experimental test of relay protection instrument, the introduction of the real teaching of our actual experimental device. Experimental setup mock panel wiring diagram, and there are corresponding indicator display, makes the experiment more intuitive display of. Experimental device provides six independent analog outputs, including three-way independence of AC voltage output and three-way independence of AC current output, and have their own precise indication of the corresponding instrument to ensure the completion of the flexibility and accuracy of the experiment

WCB-821A Series microcomputer works with the transformer protection device is mainly applied 3-10kV voltage class of small ground current systems or low resistance grounding system of the plant with the change, the change of variable, or the protection of ground..

Function :

Two section current protection, Three-section specified time directional overcurrent protection after being Blocked by voltage, High voltage side positive sequence reverse time over current protection, Over load protection, High voltage side three section zero sequence overcurrent protection, Low voltage side three section zero sequence overcurrent protection, Zero-sequence overvoltage protection, Low voltage protection, Two-section specified time negative sequence overcurrent protection, Low voltage side zero-sequence reverse time current protection

, FC circuit protection, Non-electricity protection, TV break check, Control circuit abnormal, spring unpressed, pressure abnormal, Tele-measuring, tele-signaling, tele-control, and remote pulsing functions, Fault wave recording, GPS calibration.

Details: