LH300B arc light protection device Introduction: The LH300B arc light protection device is suitable for voltage levels of 40.5kV and below, and can be widely used in distribution systems in various fields such as metallurgy, chemical industry, light industry, semiconductor industry, and power. Features: 1. Wide angle point passive arc light probe: visible/ultraviolet light, with a sensitivity angle of 360 ° x 240 ° 2. Arc light signals and arc light conversion signals are transmitted through all optical fibers, with strong anti-interference ability 3. Rich contact outputs: fast protection contacts, conventional protection contacts, power-off contacts, alarm contacts 4. Rich communication interfaces: Ethernet+RS485+RS232, printer interface, GPS timing interface 5. Strong on-site adaptability: The power grid mode, protection mode, and arc probe assembly mode can be set through menus 6. Self inspection, adaptive ambient light, and malfunction protection Technical parameters: Current input channels: 6 channels/3 channels Current input range: 0~40In, In=5A and In=1A can be selected from the menu Threshold setting range: 0.5In~10In Current response accuracy: ± 5% Internal arc light channels: 4, with plastic fiber optic access External arc light interface: 24 standard+12 optional, quartz fiber access Point shaped passive arc light sensor: visible/ultraviolet light, sensitivity angle 360 ° x 240 ° Arc light sensing range: 200Lux~50kLux Fault response time: arc light ＜ 2ms, current ＜ 10ms Switching input: 5 channels Protection output: 3 fast contacts+2 conventional contacts Power failure contact: 1 normally open alarm contact: 1 normally open+1 normally closed Human machine interface: LCD+LED+buttons Event records: 1000 records, power outage maintenance, cycle recording Fault recording: 10 records, power failure maintenance, cycle recording Communication interface: Ethernet+RS485+RS232, printer interface, GPS timing interface
Introduction: The LH300B arc light protection device is suitable for voltage levels of 40.5kV and below, and can be widely used in distribution systems in various fields such as metallurgy, chemical industry, light industry, semiconductor industry, and power.
