JC-7型冲击继电器
JC-7型冲击继电器产品介绍
中文介绍
JC-7型冲击继电器是一种用于电力系统保护与控制的关键设备。它主要用于检测电力系统中的冲击电流,能够在短时间内准确判断故障并发出信号,为电力系统的安全稳定运行提供重要保障。
该继电器采用先进的电子技术和可靠的机械结构设计,具有高灵敏度和高精度的特点。其测量范围广泛,能够适应不同电压等级和电流大小的电力系统环境。在设计上,JC-7型冲击继电器充分考虑了抗干扰能力,能够在复杂的电磁环境中稳定工作,有效避免误动作。
此外,该继电器的操作简便,维护成本低。其外壳采用坚固耐用的材料制成,防护性能良好,能够抵御恶劣环境的影响,延长使用寿命。JC-7型冲击继电器适用于多种应用场景,如变电站、发电厂以及工业企业的配电系统等,是电力系统保护装置中不可或缺的一部分。
English Introduction
The JC-7 type impact relay is a key device for power system protection and control. It is mainly used to detect the impact current in the power system, and can accurately determine the fault and send out signals in a short time, providing important security for the safe and stable operation of the power system.
Adopting advanced electronic technology and reliable mechanical structure design, the JC-7 type impact relay features high sensitivity and high precision. It has a wide measurement range and can adapt to power system environments with different voltage levels and current sizes. In terms of design, the JC-7 type impact relay has taken into full consideration its anti-interference capability, enabling it to work stably in complex electromagnetic environments and effectively avoiding false actions.
Moreover, the operation of the JC-7 type impact relay is simple and its maintenance cost is low. Its casing is made of sturdy and durable materials with good protective performance, which can resist the influence of harsh environments and extend its service life. The JC-7 type impact relay is suitable for a variety of application scenarios, such as substations, power plants, and distribution systems of industrial enterprises, and is an indispensable part of power system protection devices.
JC-7型冲击继电器
的详细介绍
JC-7型冲击继电器
冲击继电器 >> JC-7型冲击继电器 |
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JC-7型冲击继电器
1、应用范围 |
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JC-2型冲击继电器(以1;简称继电器)应用于在直流操作的继电保护及控制回路中作为中央信号的主要元件。
继电器的功能见表: |
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型号
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动作及回电流(mA)
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大稳定电流(A)
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有无延时功能
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JC-7/11
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15
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2
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无
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JC-7/12
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100
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0.6
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无
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JC-7/21
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15
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0.6
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有
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JC-7/22
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100
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2
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有
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JC-7/11、JC-7/12为普通冲击继电器。其功能为:a.电流突增动作;b.电流突减返回;c.手动复归。 |
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JC-7/21、JC-7/22在具有JC-7/11、JC-7/12功能的基础上,还增加了延时功能即:
a.将端子⑥、⑧短接可实现动作后延时自动复归;
b.将端子④、⑥短接可实现继电器延时动作,延时过程中若信号已消失继电器将结束延时,不再动作。 |
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继电器的主要特点是:抗纹波干扰能力强,灯丝的冷态电阻与热态电阻差引起的电流突减不会使继电器误返回。 |
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2.主要技术参数 |
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额定直流电流:220V、110V、48V。 |
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动作及返回电流见表。 |
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大K期稳定电流见表。 |
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延长时间:2-l0s,连续可调。 |
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触点容量:在电压不超过250V,电流不超过5A,时间常数为5±0.75ms的直流有感负荷电路中,产品输出触点的断开容量为50W。输出触点在上述规定的负荷条件下,产品能可靠动作及返回5×104次。输出触点长期允许接通电流为5A。 |
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介质强度:产品各导电端子连在—起,对外露的非带电金属部分或外壳之间,能承受2000V(有效值)50Hz的交流电压历时1分钟试验而无绝缘击穿或闪络现象。 |
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3.端子接线图 |
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4.外形及开孔尺寸 |
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