Arc Flash Protective Relay

AFR arc flash protective relay is a costeffective solution that reduces arc-fault damage by detecting the light from an arc flash and rapidly tripping in low-voltage (LV) and medium-voltage (MV) electrical networks. three remote light sensors can be connected to one relay.

It used to limits damages to equipment, improve safety, avoid and protect personnel injuries. It’s also can be used as a stand-alone arc protection relay or applied in more complex switchgear layouts.
 

Arc Flash Protective Relay
AFR-S0.jpg
AFR-S.jpg
Arc Flash Protective Relay
AFR-S0.jpg
AFR-S.jpg

FEATURES

• Panel mounting design.
• 3-phase current and earth-fault current
measurement.
• Informative display on LCD screen.
• 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.

  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

 

 

MODELS