A lightning arrester online monitoring terminal device

A technology for monitoring terminals and lightning arresters, which is applied to measuring devices, instruments, measuring electricity, etc., can solve problems such as low safety, and achieve the effect of improving safety and increasing leakage current sampling

Active Publication Date: 2018-06-29
ZIYANG POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The traditional surge arrester online monitoring device requires external power supply, so that the surge arrester online monitoring device is connected with other electrical equipment by a metal medium, and the safety is not high

Method used

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  • A lightning arrester online monitoring terminal device
  • A lightning arrester online monitoring terminal device

Examples

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Embodiment 1

[0020] Such as figure 1 with figure 2 An arrester online monitoring terminal is shown, including CPU, arrester leakage current sampling module, arrester leakage current energy storage power supply module, wireless communication module, CPU, arrester leakage current sampling module, and arrester leakage current energy storage power supply module. One end of the communication module is connected to the CPU, and the other end of the wireless communication module is connected to the antenna port.

[0021] The arrester leakage current energy storage power supply module includes a resistor sheet, an action energy storage capacitor, an energy storage capacitor, a trigger circuit, a rectifier bridge circuit, an electromagnetic relay, and an energy management module. The resistor sheet and the rectifier bridge circuit are connected in parallel, and the rectifier bridge circuit The positive pole of the trigger circuit is connected to the trigger circuit, the trigger circuit is connect...

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Abstract

The invention discloses an arrester on-line monitoring terminal device, which comprises a CPU, an arrester leakage current sampling module, an arrester leakage current energy storage power supply module and a wireless communication module, wherein the CPU, the arrester leakage current sampling module and the arrester leakage current energy storage power supply module are connected, one end of the wireless communication module is connected with the CPU, and the other end of the wireless communication module is connected with an antenna port. The arrester on-line monitoring terminal device can be powered by utilizing leakage current, omits metal medium connection with other electrical equipment, improves safety of the device, can continue the previous reading and counting habits of the patrolling personnel, and adds leakage current sampling, harmonic analysis and data wireless transmission functions.

Description

technical field [0001] The invention relates to the field of monitoring terminals, in particular to an online monitoring terminal for lightning arresters. Background technique [0002] Metal Oxide Arrester (MOA for short) has replaced other types of arrester with its excellent technical performance, and has become the main protection equipment of power system. However, there is no discharge gap in MOA, and the zinc oxide resistors withstand the operating voltage for a long time, and there is a leakage current flowing continuously through the series resistors of MOA. The magnitude of this current depends on the thermal stability of MOA and the aging degree of the resistors. If the MOA degrades when it operates under the action of lightning current, it will reduce the normal ground insulation level and increase the leakage current until it develops into breakdown damage and explosion of MOA. Therefore, it is very necessary to monitor the working status of MOA during operation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12
CPCG01R31/1236
Inventor 李海峰龙辉王悦廖文礼倪平波朱璠
Owner ZIYANG POWER SUPPLY COMPANY STATE GRID SICHUAN ELECTRIC POWER
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