Line protection measurement and control device/PDM-850C-F

★ Equipped with quick break, time limited quick break, overcurrent, overcurrent inverse time limit, overload, zero sequence overcurrent I/II/III sections, zero sequence overcurrent
Multiple protection functions, including inverse time limit, acceleration protection, low-frequency load shedding, overvoltage/undervoltage, bus grounding, PT disconnection/voltage loss, low current grounding line selection, system power loss, etc., and recording of protection events;
★ Comprehensive measurement of three-phase current, zero sequence current, three-phase/line voltage, active/reactive power, power factor, frequency, and other electrical quantities;
★ Energy metering: active energy (kWh), reactive energy (kvarh);
★ Equipped with three-phase primary reclosing function, and can detect synchronization and no voltage; Determine the control circuit disconnection function;
★ 1 RS-485 communication interface, Modbus RTU communication protocol, can remotely open and close circuit breakers, and has the ability to close
Gate inspection condition function;
★ 14 channel switch remote signal input: Among them, 6 channels have the functions of circuit breaker closing/opening, reclosing locking, remote control permission, and manual tripping/closing signal access;
★ 6-way relay output: used for accident signal, alarm signal, remote control opening and closing, fault tripping, and reclosing output respectively;
Various comprehensive measurement values and SOE event records can be read in real-time through the communication port, and all protection parameters can be set through the display panel;
Scope of application: This line protection and measurement device is suitable for the incoming and outgoing circuits in substations (stations) with voltage levels of 35KV, 10KV, and 6KV.

Note: This diagram is for reference only. The wiring diagram is subject to the actual product. If there are any objections, please contact our technical team before purchasing.