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Condition Monitoring System for HVDC Systems

A state monitoring system, high-voltage direct current technology, applied in the field of monitoring, can solve problems such as insufficient safety of high-voltage direct current, and achieve the effects of saving labor costs, increasing safety, and timely monitoring

Active Publication Date: 2019-04-23
LANZHOU HAIHONG TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The existing high-voltage direct current has the problem of insufficient safety

Method used

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  • Condition Monitoring System for HVDC Systems
  • Condition Monitoring System for HVDC Systems
  • Condition Monitoring System for HVDC Systems

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Experimental program
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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0031] like figure 1 As shown, a condition monitoring system for high-voltage DC system, including host computer, data transmission circuit, main control circuit, relay, power supply circuit, resistance switching circuit, bus metering circuit, lightning protection detection circuit, branch electricity metering circuit, branch leakage current detection circuit and branch switch state detection circuit,

[0032] The power supply circuit is connected to the main control circuit through a relay, the branch electricity metering circuit, the branch leakage current detection circuit and the branch switch state detection circuit are all connected to the main control unit by...

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Abstract

The invention discloses a state monitoring system for a high-voltage DC system, which comprises a host computer, a data transmission circuit, a main control circuit, a relay, a power supply circuit, a resistance switching circuit, a bus metering circuit, a lightning protection detection circuit, a branch power metering circuit, a branch current leakage detection circuit and a branch switch state detection circuit, wherein the power supply circuit is connected with the main control circuit via the relay; the branch power metering circuit, the branch current leakage detection circuit and the branch switch state detection circuit are all in communication connection with the main control unit; output ends of the resistance switching circuit, the bus metering circuit and the lightning protection detection circuit are connected with the input end of the main control unit; and output signals of the main control circuit are transmitted to the host via the data transmission circuit. The state monitoring system for the high-voltage DC system has the advantage of improving the high-voltage DC safety.

Description

technical field [0001] The invention relates to the field of monitoring, in particular to a state monitoring system for a high-voltage direct current system. Background technique [0002] At present, with the rapid development of my country's communication industry and the rapid increase of data services, the usage of UPS in communication bureaus has increased greatly, and the reliability of the system and the ease of maintenance have attracted more and more attention. There are many problems. Although the dual-bus UPS power supply system has appeared, which has increased the reliability of UPS power supply, it has also increased the use of the computer room area and equipment investment, and also increased energy waste. [0003] The system efficiency and reliability of the DC power supply system are much higher than that of the UPS power supply system, which has been recognized by the industry, and the replacement of UPS by the high-voltage DC power supply system has become...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 曹振海张兴文庆丽霞
Owner LANZHOU HAIHONG TECH
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