Guodian Nanzi microcomputer protection device PDS-746B

Guodian Nanzi microcomputer protection device PDS-746BGuodian Nanzi microcomputer protection device PDS-746B

1、 Product Usage and Characteristics

The PD S-746A digital motor protection and measurement device (hereinafter referred to as the device) is mainly used for various types of electricity up to 10kV

Comprehensive protection and measurement and control of large and medium-sized asynchronous motors with voltage levels. The device comes with its own operating circuit.

protection function

● Current quick break protection

Negative sequence current protection (including phase failure and reverse phase)

● Zero sequence overcurrent protection

● TV disconnection detection

● Overheating protection

● Low voltage protection

● Overvoltage protection

Overheating prohibits restart protection

Long start protection

● Positive sequence current protection

● Blockage protection

● Overload protection

The small current grounding line selection function of fuzzy digital model

● Distributed busbar protection function

● Non electricity protection

● Operation circuit and anti bounce circuit

● Event recording and fault waveform recording

Measurement and control function

● Remote signaling: 16 external hard remote signaling inputs, internal remote signaling of the device, event remote signaling, and remote signaling SOE

● Protect event messages

● Remote control: Remote control of circuit breaker opening and closing, and exploration of grounding opening and closing

● Telemetry: Three phase measurement of current P、Q 、cosφ