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Insulation monitoring system

A technology of insulation monitoring and insulation detector, which is applied in measurement devices, measurement of electrical variables, high resistance measurement, etc., can solve the problem that insulation monitoring system cannot be centralized, modularized and high-precision detection of DC load data.

Pending Publication Date: 2021-10-01
ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an insulation monitoring system, which can solve the problem that the insulation monitoring system in the prior art cannot be centralized and modularized for high-precision detection of DC load data

Method used

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  • Insulation monitoring system

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Embodiment Construction

[0021] Embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings.

[0022] Embodiments of the present disclosure are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present disclosure from the contents disclosed in this specification. Apparently, the described embodiments are only some of the embodiments of the present disclosure, not all of them. The present disclosure can also be implemented or applied through different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present disclosure. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other. Based on the embodiments in the present disclosure, a...

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Abstract

The invention discloses an insulation monitoring system. The system comprises an insulation detector and a plurality of direct-current insulation impedance detection devices; the insulation detector is connected with the DC bus voltage bus and monitors the DC bus voltage bus; the insulation detector is respectively connected with the plurality of direct current insulation impedance detection devices, monitors each direct current branch detected by the direct current insulation impedance detection devices, and reads monitoring data; the DC insulation impedance detection device comprises an extension unit and a plurality of detection units, the input ends of the plurality of detection units are electrically connected with a direct-current bus voltage bus and are connected in parallel to the direct-current bus voltage bus, and the output ends of the plurality of detection units are electrically connected with a direct-current load needing to be detected, so that the plurality of detection units transmit detected data of the direct-current load to the extension unit in a communication manner; and the extension unit processes the data of the DC load, obtains the voltage data of the insulation detector at the same time, and calculates the residual current value and the actual insulation resistance value of each DC branch.

Description

technical field [0001] The invention relates to the technical field of DC insulation resistance detection, in particular to an insulation monitoring system. Background technique [0002] Insulation monitoring system includes host and extension. The host is also called: insulation tester, and the extension is also called: DC insulation resistance testing device. The insulation monitoring system is mainly used in DC power supply systems for substations, AC-DC integrated systems or data center DC power systems, rail transit DC power systems, and various insulation faults of DC busbars and DC feeders in DC power systems in other applications. monitoring. [0003] However, the existing DC insulation resistance detection devices either only detect one DC load, which is not only low in detection efficiency, but also high in cost, or scattered and disorderly detects each DC load, without forming a centralized modular form, and there are still The detection accuracy is poor, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R27/02
CPCG01R27/025
Inventor 王晓明周柯林翔宇巫聪云宋益李文伟李振东彭博雅徐开仁
Owner ELECTRIC POWER RES INST OF GUANGXI POWER GRID CO LTD
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