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Product name： | ZD-4小电流接地信号装置 | |||||
| specification： |   Zoom in on the image |
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| Category： | low-voltage electrical apparatus -- 信号继电器 | ||||||
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Price： | factory price | |||||
| Brand： | Shanghai | ||||||
| Place of Origin： | China | ||||||
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Available Quantity： | batch | |||||
| delivery cycle： | Spot goods (or inquire by telephone) | ||||||
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1.概述：
DZ-4型装置都是由鉴别暂态零序电压首半波方向之原理构成的。ZD-4型用于中性点不接地系统中，当系统发生单相接地时，本装置发出系统接地信号。值班人虽可以转动切换开关，当切换么接线路时，零序方向元件动作，发出信号。本装置可同时切换20条线路。
2.型号参数：
额定电压100V
最小一次电流0.5A
最大灵敏角-70℃
3.结构特点：
4.安装尺寸：
5.接线图：
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