Switchgear Earth Fault Arc Flash Detection Relay with 12-Channel Current Input

• Theory: Protection Relay
• Usage: Switchgear
• Phase: 3
• Electricity Type: AC & DC
• Number of Pole: 3
• Load: High Power Relay
• No. de Modelo.: AFR-M
• Protective Characteristics: Sealed Relay
• Action Principle: Electromagnetic Type
• Size: Miniature
• Type: Electric Parameter Relay
• carga de contacto: alta potencia
• Paquete de Transporte: 10*10*10
• Especificación: 10*10*10
• Marca Comercial: Blue Jay
• Origen: Chongqing, China
• Capacidad de Producción: 1000 Piece/Pieces Per Day

Descripción de Producto

 

 

Arc protection relays are mainly used to detect arc faults in electrical systems and protect equipment and personnel in electrical systems from arc faults. Arc protection relays can detect arcs by monitoring parameters such as current, voltage, and electric power, and quickly disconnect the power supply before an electrical fire occurs, thereby reducing the risk of fire.

 

Arc protection relays are usually used in medium and high-voltage power distribution systems, control cabinets, transformers, generators, motors and other electrical equipment. They adopt the dual-criteria principle of arc light detection and overcurrent detection and have the characteristics of fast protection action and high reliability.

Feature

* Complete digital design, simple principle;
* Strong electrical performance;
* Comprehensive record of fault information;
* Double criterion of over-current and arc, high reliability;
* Optical fiber transmits, strong electromagnetic interference resistance;
* Programmable logic of trip exit;
* Fast exit tripping, short total fault clearing time.

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

 

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