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HDU1-NPE
电涌保护器 Surge protector device

安装 Installation

◆ NPE 和 HDU1-II 系列电涌保护器组合成 HDU1-40-1P+N, 2P+N, 3P+N 等 SPD, 具有共模 (MC) 和差模 (MD) 保护方式。
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◆ NPE 采用 35mm 的标准导轨安装，零线用 2.5—35mm 的导线连接，地线用 6mm 以上的双色多股铜质导线连接，长度不超过 500mm 。
◆ NPE and HDU1-II series Surge protector devices are combined into SPDs such as HDU1-40-1P+N, 2P+N, 3P+N, etc., with common mode (MC) and differential
mode (MD) protection.
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◆ NPE is installed with 35mm standard rails. The neutral wire is connected by 2.5-35mm wire. The ground wire is connected by two-color multi-strand copper
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wire of 6mm or more, and the length is not more than 500mm .
主要结构及工作原理 Main structure and working principle
NPE 以气体放电管或者空气放电间隙为主要执行元件，一般情况下，电极间呈高电阻状态，当电网因间接雷电和直接雷电或其它瞬时过电压出现电涌时，
电极间在纳秒级时间内导通．将电涌引入大地，从而保护了电网上的设备，当该电涌过 NPE 消失后，NPE 重新恢复到高电阻状态，不影响电网的正常运行。
NPE uses gas discharge tube or air discharge gap as the main actuator. Under normal circumstances, the electrodes have a high resistance state. When the grid
is in surge due to indirect lightning and direct lightning or other transient overvoltage, the electrodes are in nanosecond time. Internal conduction. The surge is
introduced into the earth to protect the equipment on the power grid. When the power surges through the NPE, the NPE returns to the high resistance state without
affecting the normal operation of the power grid.

主要技术参数 The main technical parameters

型号规格 Model and specification HDU1-NPE
L-N 420 385 320 275
最大持续工作电压 Uc（VAC） Maxi continuous operating voltage
N-PE 255
L-N 2.0 1.8 1.6 1.5
电压保护水平 Up（kV） Voltage protective level
N-PE 1.2
最大放电电流（8/20μs）Imax(kA) Maxi discharging current 40
标称放电电流 (8/20 s)In(kA) Nominal discharging current 20
响应时间 ns Response time ＜ 25
防护等级 Protection grade IP20
老化失效：绿色正常，红色失效
失效指示 Indication of invalidation
Aging invalidation: green: Normal, red: invalidation
用途 Application 进线三级保护 Line-level protection
遥信功能 Remote signal Function 可另配货 Can also picking
其他最大持续工作电压 Uc 可定制
备注 Remarks
Other maxi continuous operating voltage Can be customized

原理图及外形尺寸图 Schematic and outline drawing

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A L 50
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N N L L L
PE
PE
35 91 45

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