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10kV high-voltage switch cabinet overheating risk early warning device and early warning method thereof

A technology for high-voltage switchgear and risk warning, which is applied to measuring devices, measuring heat, instruments, etc., can solve problems such as weak anti-interference ability, low measurement accuracy, and untimely early warning, and achieve strong anti-interference ability and high measurement accuracy High, early warning and timely effect

Inactive Publication Date: 2020-08-04
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a 10kV high-voltage switch with timely early warning, high measurement accuracy and strong anti-interference ability to solve the problems of untimely early warning, low measurement accuracy and weak anti-interference ability in the existing high-voltage switchgear. Cabinet overheating risk early warning device and early warning method

Method used

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  • 10kV high-voltage switch cabinet overheating risk early warning device and early warning method thereof
  • 10kV high-voltage switch cabinet overheating risk early warning device and early warning method thereof
  • 10kV high-voltage switch cabinet overheating risk early warning device and early warning method thereof

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Embodiment 1

[0030] Embodiment 1: The 10kV high-voltage switchgear overheating risk warning device is composed of a high-voltage switchgear 1, a temperature measuring element 2, a communication component 3, a central server 4, a host computer 5, an early warning component 6 and a monitoring component 7. The high-voltage switchgear 1 is It is installed in the substation at intervals, and the high-voltage switchgear 1 is provided with a busbar room 1-1, and the switchgear above the busbar room 1-1 is correspondingly provided with A-phase line inlets 1-2, B-phase line inlets 1-3 and C-phase wire inlet 1-4, A-phase wire inlet 1-2, B-phase wire inlet 1-3 and C-phase wire inlet 1-4 are respectively equipped with circuit breakers 1-5 and circuit breakers 1-5 A cutting device is formed, and the moving contacts 1-6 are fixedly inserted in the ports of the A-phase wire inlet 1-2, the B-phase wire inlet 1-3 and the C-phase wire inlet 1-4.

[0031] The temperature measuring element 2 is fixed on the m...

Embodiment 2

[0034] Embodiment 2: an early warning method for the overheating risk of a 10kV high voltage switchgear, characterized in that: the early warning method for the overheating risk early warning device for the 10kV high voltage switchgear comprises the following steps:

[0035] 1) The wireless temperature sensor wirelessly sends the temperature data of the moving contacts 1-6 to the ZigBee network communication module at a fixed frequency, and the ZigBee network communication module sends the temperature data to the central server 4 after receiving the temperature data;

[0036] 2), after the central server 4 receives the temperature data, it stores the temperature data into the internal database;

[0037]3) Since the collected temperature data has certain nonlinearity and non-stationarity, the central server 4 needs to preprocess the stored data to convert it into stationary data: first extract the temperature collected in the T time interval Data, the temperature data is compos...

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Abstract

The invention relates to a 10kV high-voltage switch cabinet overheating risk early warning device and an early warning method thereof, and belongs to the technical field of high-temperature early warning. The early warning device is composed of a high-voltage switch cabinet, a temperature measuring element, a communication assembly, a central server, an upper computer, an early warning assembly and a monitoring assembly. The high-voltage switch cabinets are arranged in a transformer substation at intervals. The temperature measuring element is fixedly arranged on each high-voltage switch cabinet, the temperature measuring element is in wireless connection with the communication assembly, the communication assembly is connected with the central server through an Ethernet cable, the centralserver is connected with the upper computer through an Ethernet cable, the upper computer is electrically connected with the early warning assembly, and the central server is in wireless connection with the monitoring assembly. The 10kV high-voltage switch cabinet overheating risk early warning device and the early warning method thereof have the characteristics of timely early warning, high measurement accuracy and strong anti-interference capability, problems of untimely early warning, low measurement accuracy and weak anti-interference capability of the existing high-voltage switch cabinetare solved, and the high-temperature early warning requirement of a transformer substation is met.

Description

technical field [0001] The invention relates to a 10kV high-voltage switchgear overheating risk early warning device and an early warning method thereof, belonging to the technical field of high temperature early warning. Background technique [0002] High-voltage switchgear is an important electrical equipment common in substations. Its working voltage can reach 10kV. For safety reasons, most high-voltage switchgears adopt a fully enclosed structure, resulting in poor heat dissipation conditions, and the contacts in the switchgear become hot. Serious, so after working for a long time, the heat accumulated inside the high-voltage switchgear will easily overheat the equipment. If it is not treated in time, it will cause aging of the components, and cause serious safety accidents. Therefore, it is necessary to monitor the operating temperature of the high-voltage switchgear , to prevent overheating accidents. [0003] The traditional temperature monitoring is to use a thermom...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01K13/00G08C17/02G01K1/024
CPCG01K13/00G08C17/02
Inventor 文昌斌张巨华贺晓宇李远凡李涛熊志恒李翰林
Owner STATE GRID CORP OF CHINA
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