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BS-7B型时间继电器

更新:2013-9-9 13:31:28      点击:
  • 产品品牌   
  • 产品型号   BS-7B
  • 产品描述

    BS-7B型时间继电器,是上海人民电气有限公司 http://www.shamandq.com 为您提供的关于BS-7B型时间继电器型号,BS-7B型时间继电器价格,有关BS-7B型时间继电器的相关资...

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额定电压(DC) 功率消耗(W)
220V 不大于6
110V 不大于3
48V 不大于1.5
.触点断开容量
直流有感(τ=5ms)回路,U≤250V,I≤0.5A,为30W;在交流(cosФ=0.4)回路;U≤250V,I≤1A,为100VA。
.介质强度
继电器各导电电路连在一起与外露的非带电金属部分及外壳之间,能承受2kV(有效值),50Hz的交流电压历时1min试验,耐无绝缘击穿或闪络现象。
.电寿命5×103次,机械寿命104次。
.重量
继电器的重量约为1kg。
调试方法
a.将铭牌整定电位器R9旋至最小位置。继电器施加额定电压,其中①端为“+”,②端为“-”,继电器延时动作,发光二极管亮,并保持此状态直到失电,继电器返回;
b.铭牌整定值1~5分档和倍乘。如延时整定范围为8min~40min,1点的整定值就是40/5=8min,2点是8×2=16min …… ;
c. 继电器的延时一致性和平均误差可按3条5款及3条6款之规定进行测量。

触点形式:一转换。
.动作值及返回值
对于额定电压为220V,110V的继电器,其动作值不大于额定值的70%;对于额定电压为48V的继电器,其动作值为不大于90%额定值。
继电器返回值不小于额定值的5%。
.延时一致性
在基准条件下,施加额定电压,继电器的延时一致性不大于1%。
其含义是指在任一整定点上五次测得的实际动作值中最大值与最小值之差与五次算术平均值
之比。
.延时整定值的平均误差
在基准条件下,施加额定电压,继电器的延时整定值的平均误差不大于±5%。
其含义是指在同一整定点上五次测得的算术平均值和整定值之差与整定值之比。
.温度影响
温度在标称范围内变化时,继电器延时整定值的变差不应超过4款和5款规定值的两倍。
.电压影响
输入电压在工作范围内变化时,继电器延时整定值的变差不超过4款和5款规定值的两倍。
.功率消耗在额定电压下,继电器的功率消耗符合表2的规定值。

BS-7B时间继电器(以下简称继电器)用于各种控制和保护电路中,起自动延时转接作用

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