HomeYour location:Homeinstrumentation and metersElectrical instrumentsVoltage loss timer → JSY-21B型电压失压计时器
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Product name: JSY-21B型电压失压计时器
specification: JSY-21B型电压失压计时器
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Category: instrumentation and meters -- 失压计时仪
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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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  Shanghai Beiyuan Industry and Trade Co.,Ltd
+86-21-66770508
+86-139101609058

Email 91way@163.com
Wechat 13901609058(Wechat)


JSY-21B型电压失压计时器Detailed product description:Column tabs
JSY-21B型电压失压计时器适用于监视电力计量用三相三线、三相四线,有功、无功电能表的运行状态,当线路中有失压现象存在时,该仪表能自动记录失压时间和失压次数,同时声光报警。产品还设有相序指示电路,以便电力计量部门追补人为的或非人为的漏计电能。使用该仪表对加强用电管理提高计量管理水平等方面具有重要意义。

二、JSY-21B型电压失压计时器规格型号

规格
接线方式
输入电压
标定电流
JSY-21B型
三相三线
3×100V
5A
JSY-22B型
三相四线
3×380V/220V
5A


三、技术指标:
1.计时误差:< Is /d
2.动作电流:标定电流的0.3—5%可调 (出厂调15Ma)
3.动作电压:为参比电压的65%±2V
4.返回电压:为参比电压的75%±2V
5.回路阻抗:0.05欧(0~5A)
6.计时范围:9999.99—0.01h
7.整机功耗:<5VA
8.三相同时失压连续工作时间≤15天

JSY-21B型电压失压计时器
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