Ji Ning Haobo Quality is an eternal theme. The market is the sea, the quality of the ship, the brand is a fan. Today, the quality of tomorrow's market. Build quality Great Wall, Hing Chinese economy. For your business to provide multi-faceted services. ??????? PIR-III high-voltage power distribution intelligent integrated protection device may be used mine high voltage distribution switchgear and high-voltage magnetic starter, covering 6kV, 10 kV voltage level, 5 ~ 630A rated operating current; all-digital tuning and calibration; with voltage | insulation protection surveillance overvoltage | overload | short circuit | equilibrium | | leakage protection (ground fault protection); with RS485 or CAN bus in the form of four remote communication functions; with calendar clock; with fault memory and inquiries function; with test menu function. Functional, targeted, long-term stable and reliable. Certified by EMC testing and proof testing center. Measurement parameters 1 ,? Rated current: 5 ~ 630A 2 ,? Rated voltage: 100VAC 3 ,? Rated frequency: 50Hz 4 ,? measurement content: U, I, R, U0, I0 5 ,? Accuracy: ± 5% 6 ,? switch input mode: 1 optically isolated environment, altitude does not exceed 2000m, pressure is 80kPa ~ 110kPa 2, ambient temperature of -5 ℃ ~ + 55 ℃ 3, ambient air relative humidity less than 95% (+ 25 ℃ pm) 4, no obvious damage to the insulation of the gas environment 5, 6 can be prevented from dripping place, installed in 6kV or 10kV distribution equipment explosion chamber for explosive gas (methane mixture) mine in the standard configuration PIR- III-RK ?????????????????????? PIR-III-RX host a ????????????????? ?????????? ???? host a zero-sequence current transformer 1 ???????? zero sequence current transformer a current transformer 2 ?????? ?????????? monitor a monitor a ??????????????????????? data line two data lines 2 ??? a terminal element ????????????????????? terminal element 1?