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Transformer online monitoring device

A technology for monitoring devices and transformers, applied in the field of transformers, can solve problems such as difficult detection of transformer faults and difficult identification of transformers, and achieve the effects of scientific and practical data analysis methods, accurate data transmission speed, and high accuracy

Active Publication Date: 2017-02-15
SHANDONG UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the more common fault diagnosis method is to judge the fault degree and some fault types through the oil chromatographic monitoring device, but the specific location of the internal fault of the transformer is not easy to detect, especially for the judgment of the partial discharge position in the transformer.

Method used

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  • Transformer online monitoring device
  • Transformer online monitoring device

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Experimental program
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Embodiment Construction

[0026] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0027] combine figure 1 As shown, a transformer on-line monitoring device is used for real-time monitoring of the operating environment and status of the transformer body 1 . The monitoring devices mentioned above include:

[0028] The oil chromatography online analysis device 2 is connected to the transformer body 1 through the oil pipeline 7;

[0029] The transformer bushing online monitoring device 3 is arranged at the bottom of the transformer bushing 8 on the transformer body 1;

[0030] The temperature sensor 4 is arranged on the surface of the transformer body 1, outside the winding insulation winding inside the transformer body 1 and in the oil tank inside the transformer body 1;

[0031] The transformer vibration sensor 5 is arranged on the surface of the transformer body 1;

[0032] The transformer partial discharge ultrasonic dete...

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Abstract

The invention discloses a transformer online monitoring device. The device is used for carrying out real-time monitoring on an operation environment and a state of a transformer body. The monitoring device comprises an oil chromatogram online analysis apparatus, a transformer casing pipe online monitoring device, a temperature sensor, a transformer vibration sensor, a transformer partial discharge ultrasonic detection sensor and an upper computer. The upper computer is connected to the oil chromatogram online analysis apparatus, the transformer casing pipe online monitoring device, the temperature sensor, the transformer vibration sensor and the transformer partial discharge ultrasonic detection sensor through conductor wires respectively. By using the online monitoring device of the invention, based on multiple sensors, various parameters related to an operation environment and a state of a transformer are collected so as to carry out real-time monitoring and assessment on the operation state of the transformer; and the device adapts to the transformers with different voltage grades and possesses advantages that a data transmission speed is accurate, an interference is small and so on.

Description

technical field [0001] The invention belongs to the technical field of transformers, and in particular relates to an online transformer monitoring device. Background technique [0002] Transformers undertake the tasks of voltage conversion, power distribution and transfer in the power system, and the normal operation of the transformer is an important guarantee for the safe, reliable, economical operation and power supply of the power system. Transformers are prone to failures and accidents during long-term operation. Because there are many reasons for transformer faults and accidents, it is more urgent to diagnose and predict faults in an early stage. At present, the more common fault diagnosis method is to judge the fault degree and some fault types through the oil chromatographic monitoring device, but the specific location of the internal fault of the transformer is not easy to detect, especially for the partial discharge location in the transformer. It is difficult to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01D21/02
CPCG01D21/02
Inventor 程学珍崔亚涛焦帅赵莎莎
Owner SHANDONG UNIV OF SCI & TECH
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