Technology of Electrical Automatic

AFR-M Busbar ARC Flash Protection Relay

AFR-M Busbar ARC Flash Protection Relay

AFR-M Busbar ARC Flash Protection Relay is a cost-effective 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. This arc flash protection relay can access a maximum of 48 ultraviolet optical sensors. Preset programs of the arc flash relay can protect the safe operation of the bus circuit to the greatest extent.

AFR-M Busbar ARC Flash Protection Relay is a cost-effective 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. This arc flash protection relay can access a maximum of 48 ultraviolet optical sensors. Preset programs of the arc flash relay can protect the safe operation of the bus circuit to the greatest extent.

Features

  • AFR-M Arc Flash Relay is a panel mounting design with rugged Aluminum Housing.
  • Arc flash protection relay has an LCD screen to show you integrated information.
  • This arc relay provides total 4*3-phase current signal input.
  • Single unit max 48pcs opt-sensor connected in the ARF-M arc flash relay.
  • Less than 10 ms operation time from arc flash to arc relay trip.
  • 16* passive DI point, indicates CB status.
  • 9* trip contacts, free to configuration protect trip logic.
  • 1* Ethernet port support IEC60870-5-103 communication
  • Independent trip act and alarm act arc flash relay
  • Arc-flash mitigation strategies:
    -Light-Sensing Only;
    -Light Flash, Supervised by Current;
    -Light Flash, Supervised by Pressure(Optional).
  • Optional extra monitor functions by RS-485 connection, user can customize:
    -. Bus temperature monitoring (wireless)
    -. Partial Discharge sensor (TEV)
    -. Smoke sensor
  • Optional neighboring AFR-M to expand maximum detect quantities of feeder loop
  • Support OEM and add customized program:
    -. For special VCB control and protection logic.
    -. Localized language HMI

Specification

 

AFR-S AFR-M12 AFR-M24 AFR-M36 AFR-M48
Basic parameter of arc flash relays
Power supply 85~265Vac/dc, optional 48Vdc
Consumption Monitoring Stanby <5W
DO trig <10W
Monitoring Stanby <8W
DO trig <10W
Rated current (In) 5A or 1A
Protection range 0~20 In
Burden 0.5VA
Protect current accuracy <2%
Protect frequency accuracy 0.1Hz
Arc signal & control
Sensor type lens point 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
Safety isolation 2500V isolation capacity
Binary inputs 5 12 12 16 16
Others
Comm port  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

Typical application of AFR-M arc protection relay

Dimension and rear terminal introduction of AFR-M Arc Flash Relay :

Downloads

Brochure of AFR-SERIES-ARC-PROTECTION-RELAY

AFR-Installation-instruction-V1.0

AFR-M-User-manual-V1.12

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