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Integrated monitoring system for power transformer operation

A technology for comprehensive monitoring of power transformers, applied in the direction of instruments, measuring devices, etc., can solve the problems of low monitoring accuracy and lack of simultaneous monitoring of multiple operating data of transformers, and achieve the effects of improving maintenance management efficiency, low cost, and reducing workload

Inactive Publication Date: 2017-11-07
STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the existing problems of lack of devices for simultaneously monitoring multiple operating data of transformers and low monitoring accuracy

Method used

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  • Integrated monitoring system for power transformer operation

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specific Embodiment approach 1

[0014] Specific implementation mode one: refer to figure 1 Specifically explain this embodiment, a comprehensive monitoring system for power transformer operation described in this embodiment, which includes an intelligent measurement and analysis terminal 1, an electrical parameter acquisition module 2, a transformer parameter acquisition module 3, an environmental parameter acquisition module 4 and a power supply module 5 ,

[0015] The power module 5 is used to take power from the low-voltage side of the transformer to supply power to the intelligent measurement and analysis terminal 1;

[0016] The electrical parameter acquisition module 2 is used for real-time acquisition of three-phase current and three-phase voltage data during the operation of the transformer, and sends the collected data to the intelligent measurement and analysis terminal 1;

[0017] The transformer parameter acquisition module 3 is used to collect the oil temperature, oil pressure and oil level dat...

specific Embodiment approach 2

[0023] Specific embodiment two: This embodiment is a further description of a power transformer operation comprehensive monitoring system described in specific embodiment one. In this embodiment, it also includes a communication module 6 and a control center server 7,

[0024] The intelligent measurement and analysis terminal 1 sends data to the control center server 7 through the communication module 6 .

[0025] In this embodiment, the intelligent measurement and analysis terminal 1 performs data storage, calculation, and analysis, and uploads the data to the control center server 7 through the communication module 6 .

[0026] The control center server 7 establishes a transformer parameter database and long-term historical operation records, analyzes its health status according to various operation data, and assists in formulating a maintenance plan for the transformer.

[0027] After the transformer fails or is scrapped, the control center server 7 analyzes the design defe...

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Abstract

The invention discloses an integrated monitoring system for power transformer operation, and relates to the field of power distribution network automation. The integrated monitoring system aims to solve the problems of lack of a device simultaneously monitoring multiple operation data of a transformer and low monitoring precision at present. An intelligent measurement and analysis terminal is used to determine faults of overheat and insulation aging of a transformer according to change rules of oil temperature and oil pressure; and, if a change curve of the oil temperature or the oil pressure continues rising, the faults of the overheat and the insulation aging of the transformer occur, an alarm is given out. The intelligent measurement analysis terminal is further used to determine a seepage or oil-stealing problem of the transformer according to an oil level change rule; and, if an oil level change curve continues declining, the transformer has a seepage or oil-stealing fault, and an alarm is given out. The intelligent measurement analysis terminal is further used to compare an acquired three-phase current and voltage with a set three-phase current and voltage so as to determine whether a voltage flicker, sudden rise or sudden drop condition occurs, and, if the voltage flicker, sudden rise or sudden drop condition occurs, an alarm is timely given out. The intelligent measurement and analysis terminal is used to monitor faults occurring in the operation process of the transformer.

Description

technical field [0001] The invention relates to the comprehensive monitoring of transformer conditions and belongs to the field of distribution network automation. Background technique [0002] In the distribution network, there are a large number of distribution transformers, and the installation locations of power transformers are relatively scattered, and the large number of transformers has the disadvantages of redundant measurement and control equipment, high construction costs and maintenance costs. Operation status, abnormal phenomena during operation are difficult to find in time, basically after the failure occurs, maintenance is carried out, the maintenance time is long, the power supply quality is low, the equipment damage rate is high, and even after some equipment fails, the equipment manufacturer must be contacted The manufacturer's on-site maintenance brings great inconvenience to users and equipment manufacturers, and does not meet the energy-saving and effic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 刘鲁嘉陈铁张滨唐晓博汝石赵钢李正强刘元松徐家宁
Owner STATE GRID HEILONGJIANG ELECTRIC POWER CO LTD HARBIN POWER SUPPLY CO
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