Technology of Electrical Automatic

AFR-M Busbar Arc Flash Protective System

AFR-M Busbar Arc Flash Protective System

AFR-M arc flash protective system is a costeffective solution that reduces arc-fault damage, by detecting the light from an arc flash and rapidly tripping in low-voltage (LV) or medium-voltage (MV) electrical networks. It can access maximum 48 ultraviolet optical sensor, preset programs can protect the safe operation of the bus circuit to the greatest extent.

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AFR-M arc flash protective system is a costeffective solution that reduces arc-fault damage, by detecting the light from an arc flash and rapidly tripping in low-voltage (LV) or medium-voltage (MV) electrical networks. It can access maximum 48 ultraviolet optical sensor, preset programs can protect the safe operation of the bus circuit to the greatest extent.

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Features

  • Panel mounting design.
  • 3-phase current and earth-fault current measurement.
  • Informative display on LCD screen.
  • Max 48pcs opt-sensor connect
  • Less than 10 ms operation time (including the output relay).
  • Multiple passive DI point, indicate CB status.
  • Multiple trip contacts, free to configuration NC / NO status.
  • Programmable CB protect trip logic.
  • Optional extra monitor functions by RS-485 connection, user can customized.
  • Support OEM and add customized program for VCB control and protection logic.

Specification

 

AFR-S AFR-M12 AFR-M24 AFR-M36 AFR-M48
Basic parameter
Power supply 85~265Vac/dc, optional 48Vdc
Consumption Monitoring stanby <5W
DO trigged <10W
Monitoring stanby <8W
DO trigged <10W
Rated current (In) 5A or 1A
Protection range 0~20 In
Burden 0.5VA
Protect current accuracy <2%
Protect frequence accuracy 0.1Hz
Arc signal & control
Sensor type lenspoint fiber optic sensors(1) or bare fiber optic sensors(2)
Arc sensor access channels 3 12 24 36 48
DO relay channels 6 4 4 9 9
Trip coil contact AC250V/8A fast relay, passive node
Trip operation time <10ms @ only arc protection
<20ms @ overcurrent + arc protection
Safty isolation 2500V isolation capacitry
Binary inputs 5 12 12 16 16
Others
Comm prot  RS485 MODBUS-RTU 1*  RS485 MODBUS-RTU
1* 10/100M Adaptive
Default 192.168.12.2/192.168.13.2
IEC-60870-5-103
SOE record 512 512 512 512 512
Waveform capture / 8 8 8 8
Optional modules Wireless joints temperature monitor
Smoke detector

Typical application

Device dimension and rear terminal introduction:

Downloads

Brochure of Arc Flash Protection Relay

AFR-M manual V1.0