IRDH275B-435 数字接地故障监控器/接地检测器

IRDH275B-435 数字接地故障监控器/接地检测器

特性
•满足或超过NEC 250.21(B)和CEC 10-106(2)的要求，以及即将到来的2014年NEC 250.167(A)的要求
•接地故障检测通过绝缘监测不接地的交流/直流系统，单相或三相
•工作在系统高达793 VAC / 650 VDC
•电压范围可扩展至7200 VAC / 1760 VDC与电压耦合器模块
•两个独立的可调响应值，1 kΩ – 10 MΩ
•先进的测量原理，可检测交流和直流故障，对称故障，自动适应高系统泄漏电容
•信息按钮显示设备设置和系统泄漏电容
•自我监控
•自动自检设置
•外部计量连接
•内置和外部测试/复位
•两个独立的报警与两个无电压SPDT触点
•正常通电(故障安全)或断电(非故障安全)操作
•背光液晶显示
RS-485接口

IRDH275B-435 数字接地故障监控器/接地检测器
peculiarity
Meet or exceed the requirements of NEC 250.21(B) and CEC 10-106(2), as well as the requirements of NEC 250.167(A) for the upcoming 2014
• Ground fault detection by insulation monitoring ungrounded AC/DC systems, single phase or three phase
• Work on systems up to 793 VAC / 650 VDC
• Voltage range can be extended to 7200 VAC / 1760 VDC with voltage coupler module
• Two independent adjustable response values, 1 kΩ - 10 MΩ
• Advanced measurement principles that detect AC and DC faults, symmetric faults, and automatically adapt to high system leakage capacitance
• Info button displays device Settings and system leakage capacitance
• Self-monitoring
• Automatic self-check Settings
• External metering connections
• Built-in and external testing/reset
• Two independent alarms with two non-voltage SPDT contacts
• Normal power-on (fail-safe) or power-off (non-fail-safe) operation
• Backlit LCD display
RS-485 interface

IRDH275B-435 数字接地故障监控器/接地检测器