CN201965175U - 跨步电压报警装置 - Google Patents

跨步电压报警装置 Download PDF

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Publication number
CN201965175U
CN201965175U CN2010206458716U CN201020645871U CN201965175U CN 201965175 U CN201965175 U CN 201965175U CN 2010206458716 U CN2010206458716 U CN 2010206458716U CN 201020645871 U CN201020645871 U CN 201020645871U CN 201965175 U CN201965175 U CN 201965175U
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China
Prior art keywords
conductor
amplifying circuit
sealing conductor
triggers
step voltage
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Expired - Fee Related
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CN2010206458716U
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English (en)
Inventor
胥俊岩
程悦贤
孙明
王来军
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State Grid Corp of China SGCC
Xuchang Power Supply Co of Henan Electric Power Co
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Xuchang Power Supply Co of Henan Electric Power Co
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Abstract

本实用新型公开了一种跨步电压报警装置，包括等距设置的封闭导体Ⅰ、封闭导体Ⅱ，封闭导体Ⅰ、封闭导体Ⅱ通过导线与触发放大电路的输入端连接，触发放大电路的输出端接警示器，触发放大电路与电源相连接。本实用新型工作时，当封闭导体Ⅰ和封闭导体Ⅱ的电位差超过设定值时，触发放大电路导通，输出强电使警示器发出警示，安全可靠。

Description

跨步电压报警装置
技术领域
本实用新型涉及一种报警装置，尤其涉及一种跨步电压报警装置。
背景技术
我国电力系统中，额定电压为35kV及以下的高压配电网，均采用中性点不直接接地的小电流接地系统，当系统发生接地后，相应断路器不跳闸，不立即停止供电，可接地运行两个小时，此时，控制系统中的接地报警装置会报出系统接地信号，提醒工作人员查找接地点。接地之后地表电压以接地点为圆心向四周分布，当人员进入电压分布范围时，就面临跨步电压触电的可能，所以《电力安全工作规程》规定：当系统发生单位相接地故障时，室外不能接近故障点8米，室内不能接近故障点4米。但工作人员并不能确定接地点的具体位置，给这一规定的执行带来不可控的因素，更重要的是给现场工作人员的安全带来严重的威胁。
实用新型内容
本实用新型的目的是提供一种在设备区地表跨步电压超出规定值时能够自动报警的跨步电压报警装置。
为达到上述目的，本实用新型采用的技术方案是：
跨步电压报警装置，包括等距设置的封闭导体Ⅰ、封闭导体Ⅱ，封闭导体Ⅰ、封闭导体Ⅱ通过导线与触发放大电路的输入端连接，触发放大电路的输出端接警示器，触发放大电路与电源相连接。
封闭导体Ⅰ与封闭导体Ⅱ之间的距离为70～85厘米。
本实用新型中，将封闭导体Ⅰ、封闭导体Ⅱ等距设置与设备区边缘，即在设备区的四周提供一个等电位体，封闭导体Ⅰ与封闭导体Ⅱ之间的距离为70～85厘米，将每个导体引出一根导线与触发放大电路的输入端连接，当封闭导体Ⅰ和封闭导体Ⅱ的电位差超过设定值时，触发放大电路导通，输出强电使警示器发出警示，安全可靠。
附图说明
图1是本实用新型结构示意图。
具体实施方式
如图1所示，跨步电压报警装置，包括等距设置的封闭导体Ⅰ1、封闭导体Ⅱ2，封闭导体Ⅰ1、封闭导体Ⅱ2通过导线与触发放大电路4的输入端连接，触发放大电路4的输出端接警示器5，触发放大电路4与电源3相连接。封闭导体Ⅰ1与封闭导体Ⅱ2之间的距离为70～85厘米。
使用时，将等距设置的封闭导体Ⅰ1、封闭导体Ⅱ2埋入地下10厘米深处，可以保证与土壤良好接触，触发放大电路4接电源3，当封闭导体Ⅰ1和封闭导体Ⅱ2的电位差超过设定值时，触发放大电路4导通，输出强电使警示器5发出警示，安全可靠。

Claims (2)

1.跨步电压报警装置，其特征在于，包括等距设置的封闭导体Ⅰ、封闭导体Ⅱ，封闭导体Ⅰ、封闭导体Ⅱ通过导线与触发放大电路的输入端连接，触发放大电路的输出端接警示器，触发放大电路与电源相连接。
2.如权利要求1所述的跨步电压报警装置，其特征在于，封闭导体Ⅰ与封闭导体Ⅱ之间的距离为70～85厘米。
CN2010206458716U 2010-12-08 2010-12-08 跨步电压报警装置 Expired - Fee Related CN201965175U (zh)

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CN2010206458716U CN201965175U (zh) 2010-12-08 2010-12-08 跨步电压报警装置

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CN2010206458716U CN201965175U (zh) 2010-12-08 2010-12-08 跨步电压报警装置

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CN201965175U true CN201965175U (zh) 2011-09-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110907684A (zh) * 2019-12-04 2020-03-24 深圳供电局有限公司 跨步电压检测电路及装置
CN111044774A (zh) * 2019-12-16 2020-04-21 深圳供电局有限公司 配电设施电位差监测电路及其方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110907684A (zh) * 2019-12-04 2020-03-24 深圳供电局有限公司 跨步电压检测电路及装置
CN111044774A (zh) * 2019-12-16 2020-04-21 深圳供电局有限公司 配电设施电位差监测电路及其方法

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Patentee after: XUCHANG POWER SUPPLY COMPANY OF STATE GRID HENAN ELECTRIC POWER Co.

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Granted publication date: 20110907

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