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SD-ZB系列剩余电流继电器

> 由SD-ZB系列剩余电流动作保护继电器和零序电流互感器组合，构成接地故障保护装置，适用于TN、TT和IT电网系统。通过接地电流互感器检测出接地零序漏电电流，经剩余电流动作保护继电器与设定值的比较和判别，及时发出动作信号，接通或断开报警回路，以避免事故的扩大，从而保证人员及设备的安全。 >The combination of SD-ZB series residual current transformer and zero sequence current protection relay forms ground fault protection device, it applies to TN,TT and IT power system. Via the ground current transformer to detect the ground leak current, the current protection relay compares the sensed current with the setting value and issues operating signal timely, make or break the alarm circuit, to avoid the accident, ensure the safety of personnel and equipment.

商品名称： SD-ZB系列剩余电流继电器

所属分类：

漏电保护器和电流继电器

邮箱：

sales@sundyelectric.cn

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规格尺寸
技术参数

- 商品名称: SD-ZB系列剩余电流继电器
> 由SD-ZB系列剩余电流动作保护继电器和零序电流互感器组合，构成接地故障保护装置，适用于TN、TT和IT电网系统。通过接地电流互感器检测出接地零序漏电电流，经剩余电流动作保护继电器与设定值的比较和判别，及时发出动作信号，接通或断开报警回路，以避免事故的扩大，从而保证人员及设备的安全。 >The combination of SD-ZB series residual current transformer and zero sequence current protection relay forms ground fault protection device, it applies to TN,TT and IT power system. Via the ground current transformer to detect the ground leak current, the current protection relay compares the sensed current with the setting value and issues operating signal timely, make or break the alarm circuit, to avoid the accident, ensure the safety of personnel and equipment.

接线端子说明及外型尺寸

内部接线

项目Type

型号Item

SD-ZB1

SD-ZB2

SD-ZB3

SD-ZB4

SD-ZB5

额定动作电流（mA） Rated operating current(mA)	30/100切换 30/100switchable	100/300切换 100/300switchable	300/500切换 300/500switchable	500/1000切换 500/1000switchable	3000/5000切换 3000/5000switchable
额定不动作电流（mA） Rated non-operating Current(mA)	≤0.5倍额定动作电流（≤0.5 times of rated operating current)
辅助电源电压 Auxiliary power supply voltage	AC220V 50Hz(可定制contact us for AC110V 50Hz)
额定频率 Rated frequency	50/60Hz
额定短时电流KA Rated short-time current(kA)	100KA （峰值) 100kA(peak value)
动作电流允许范围 Permissible operating current range	50~100%
动作时间S Operating time(s)	0.1S/0.3S切换（延时时间可选） 0.1s/0.3s switchable(time delay is selectable)
使用温度范围 Ambient temperature	-10℃~+55℃
绝缘电阻 Insulation resistance	继电器辅助电源引线端与外壳之间的绝缘电阻>20MΩ (nsulation resistance between auxiliary power supply terminals and cover > 200MΩ)
工频耐压 Power frequency withstand Voltage	辅助电源引线与外壳之间施加工频电压2000V，历时1分钟 (Apply 2000v power frequency voltage between auxllany power supply terminals and cover, duration 1 min.)
安装方式 mounting	C35导轨固定或Φ2.5螺钉固定（C35 rail or Φ2.5 screw mounting）
漏电信号指示 Leak current signal indication	发光二极管（红）LED(red)
接点构成 Auxiliary contacts	1a、 1b(1NO, 1NC), 5A
适合系统形式 Power system adapted	3Φ4w、3Φ3w、1Φ2w
执行标准 Standards	GB/T 6829-2017