Technology of Electrical Automatic

Phone: +86-023-67628702
Email: info@cqbluejay.com

AFR-3(2)

AFR-3(1)

AFR-3 Arc Flash Relay

AFR-3 Arc flash relays are mainly used to detect arc faults in electrical systems and protect equipment and personnel in electrical systems from arc faults. The arc flash protection relay 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.

This AFR-3 Arc flash relay is 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.

Category: Arc Protection

AFR-3(2)

AFR-3(1)

AFR-3 Arc flash relays are mainly used to detect arc faults in electrical systems and protect equipment and personnel in electrical systems from arc faults. The arc flash protection relay 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.

This AFR-3 Arc flash relay is 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.

Category: Arc Protection

AFR-3 Arc Flash Protection Relay Features

Complete exception records, event records, and operation records;
All information power-off retention;
Equipped with RS485 communication interface;
Integrated MODBUS standard communication protocol;
Small and exquisite appearance, reasonable structure;
Using high-grade, high-quality components;
Using multi-layer board technology and SMT process;
The product has high electrical performance;
Can collect 3 channels of arc light signals;
Support ST visible light and ST ultraviolet sensor access.

Specification

Basic parameters
Rated working voltage	DC24V
AC current	5A or 1A (specify when ordering)
Frequency	50HZ
Working power consumption	Working normally, ≤ 3W Protection operates, ≤ 6W
AC current loop consumption	< 1VA/phase (IN =5A); < 0.5VA/phase (IN =1A);
Current working range	0.08In~10In
Time working range	0~99s
Setting accuracy	≤±5%;
Time accuracy	<±1%*setting time+20ms
The whole group action time	Single criterion ≤ 7ms Double criterion ≤ 20ms
Arc signal input
Input type	Passive optical signal
Input quantity	3
Interface type:	Optical fiber
Output contact capacity
A) Export relay: (3 routes)
Contact rated current carrying capacity	250Vac/220Vdc, 5A
Output type	Passive (NO/NC)
B) Signal relay: (1 way)
Contact rated current carrying capacity	250Vac/220Vdc, 5A
Output type	Passive (NO/NC)
Address	1~99
Communication interface
Electrical characteristics	RS485
Transmission method	Asynchronous
Communication protocol	Modbus RTU
Communication medium	Shielded twisted pair
Environment
Working temperature	-30 ~ 70°C
Storage temperature	-40 ~ +85°C
Humidity	5~95%RH
Electromagnetic compatibility
Electrostatic discharge test	IEC 60255-22-2:2008. level-4
Fast transient dry resistance test	IEC 60255-22-4:2008. level-A
1mhz burst interference test	IEC 60255-22-1-2007. level-3
Electrical disturbance test	IEC 60255-22-2:2008.level-3
Surge immunity test	IEC 60255-22-5:2008

Dimension

Dimension of AFR-3 Arc Flash Relay :

Downloads

Brochure of Arc Flash Protection Relay

AFR-Installation instruction-V1.0

AFR-3-User manual -V1.0

Chongqing Blue Jay Technology Co., Ltd. was founded by engineers with many years of experience. Focuses on the development, production and sales of power automation monitoring products and energy metering instruments.

Send Email

info@cqbluejay.com

Phone Inquiry

+86-023-67628702

Office Address

1802, Building 2, No. 88, Jianxin East Road, Chongqing City, 400020, China

Factory Address

Liandong U valley Industrial Park,Hangzhou City, China

Jiangyin High-tech Zone, Jiangyin City, China