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DZK-900快速中间继电器

更新:2013-9-9 13:57:40      点击:
  • 产品品牌   
  • 产品型号   DZK-900
  • 产品描述

    DZK-900快速中间继电器,是上海人民电气有限公司 http://www.shamandq.com 为您提供的关于DZK-900快速中间继电器型号,DZK-900快速中间继电器价格,有关DZK-90...

产品介绍

用途

DZK-900系列快速中间继电器(以下简称产品)用于电力系统二次回路继电保护和自动控制线路中,用作切换电路和增加保护和控制电路的触点数量和触点容量及用于出口跳闸电路。

型号说明

 

注:8副动合触点形式只有8ms规格;具体型号与内部接线见图1

结构原理及特点

为了提高触点工作的可靠性,采用双断点触点的结构。

产品的结构代号为A11KA11PA11HA11Q,详见附图。

主要技术数据

4.1 额定工作电压:DC2201104824V

4.2 额定工作电流:DC0.250.51248A

4.3 额定保持电流:DC0.250.51248A

4.4 额定保持电压:DC2201104824V

4.5 动作值:在周围环境温度为20±2°的条件下,电压型的动作电压为50%70%额定电压;电流型的动作电流不大于80%额定电流。

4.6 返回值:周围环境温度为20±2°的条件下,返回值不小于5%额定值。

4.7 保持值:在周围环境温度为20±2°的条件下

a. 具有电流保持绕组的产品,其自保持电流不大于80%额定保持电流值;

b. 具有电压保持绕组的产品,其保持电压不大于70%额定保持电压值。

4.8 动作时间:在周围环境温度为20±2°的条件下,工作绕组施加激励量为额定值,DZK-900/8动作时间不大于8msDZK-900/4动作时间不大于4ms(四对触点以上增加0.5ms)DZK-900/4电流型产品动作时间不大于5ms(四对触点以上增加0.5ms)

4.9 返回时间:在周围环境温度为20±2℃的条件下,DZK-900/8返回时间不大于5msDZK-900/4返回时间不大于2ms

4.10 当周围环境温度在-25+40°范围内变化时,产品的特性同周围环境温度20±2°条件下的特性相比,其变化不大于

a. 动作电压±15%

b. 返回电压仍满足第4.6条的要求;

c. 动作时间仍满足第4.8条的要求;

d. 返回时间仍满足第4.9条的要求。

4.11 功率消耗

a. 电压线圈在额定电压(或额定保持电压)下, 功率消耗不大于10W(包括外附电阻)

b. 电流线圈在额定电流(或额定保持电流)下,功率消耗不大于2.5W

使用和维护[

5.1 产品应安装在垂直平面上,接触系统应处于水平位置。

5.2 电压线圈应按其额定电压串接相应的外附电阻如表1

 

1

型  号

额客电压(V)

外附电阻

DZK-900/8

DZK-900/4

220

RXYC-20-5.1kΩ

110

RXYC-20-1.3kΩ

48

RXYC-20-240Ω

24

RXYC-20-62Ω

 

5.3 产品在使用过程中,触点表面会出现氧化膜或轻微的烧损而影响触点工作的可靠性,应对触点进行清理,清理时用锋利的刀片刮去触点表面的氧化物,然后再用绸布沾上少量的汽油擦试,不允许用砂纸或其他磨料清理触点。如烧损严重应及时用备件更换之。

7.订货须知
订货时应指明:
a.     继电器的名称和型号;
b.     安装方式:凸出式后接线或凸出式前接线;
c.    额定电压值;
d.    订货数量;
e.    交货地址。

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