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Transformer partial discharge online monitoring system

A monitoring system and transformer technology, applied in the field of communication, can solve problems such as single way, inability to meet various environments, and insufficient diversity of online testing, etc., and achieve the effect of strong anti-interference ability

Inactive Publication Date: 2015-05-27
HANGZHOU SHENHAO TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing detection has more functions, the diversity of online testing is not perfect enough. Usually, the way of online testing is relatively simple, which cannot meet the needs of various environments.

Method used

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  • Transformer partial discharge online monitoring system

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Effect test

Embodiment 1

[0022] like figure 1 As shown, the transformer partial on-line monitoring system includes a diagnostic analysis unit 1 , and the diagnostic analysis unit includes an ultrasonic detection module 2 , an electric pulse detection module 3 , and an ultra-high frequency detection module 4 . Different collected signals can be detected through different modules, so that it has a variety of monitoring functions. Acquisition unit: It can control the power supply in the sensing unit, the frequency band selection of different probes, the high-frequency amplification, and the detection mode selection circuit, scan and convert the echo information inside the detected object into digital signals, further process and store them, and then send them to to the diagnostic analysis unit;

[0023] Diagnosis and analysis unit: It can be directly connected to the display for manual judgment, or by setting the approved parameters, the corresponding parameters can be obtained through the acquisition u...

Embodiment 2

[0025] like figure 1 As shown, the transformer partial on-line monitoring system includes a diagnostic analysis unit 1 , and the diagnostic analysis unit includes an ultrasonic detection module 2 , an electric pulse detection module 3 , and an ultra-high frequency detection module 4 . Different collected signals can be detected through different modules, so that it has a variety of monitoring functions. Acquisition unit: It can control the power supply in the sensing unit, the frequency band selection of different probes, the high-frequency amplification, and the detection mode selection circuit, scan and convert the echo information inside the detected object into digital signals, further process and store them, and then send them to To the diagnostic analysis unit; diagnostic analysis unit: it can be directly connected to the display for manual judgment, or by setting the approved parameters, the corresponding parameters can be obtained through the acquisition unit for check...

Embodiment 3

[0027] like figure 1As shown, the transformer partial on-line monitoring system includes a diagnostic analysis unit 1 , and the diagnostic analysis unit includes an ultrasonic detection module 2 , an electric pulse detection module 3 , and an ultra-high frequency detection module 4 . Different collected signals can be detected through different modules, so that it has a variety of monitoring functions. Acquisition unit: It can control the power supply in the sensing unit, the frequency band selection of different probes, the high-frequency amplification, and the detection mode selection circuit, scan and convert the echo information inside the detected object into digital signals, further process and store them, and then send them to To the diagnostic analysis unit; diagnostic analysis unit: it can be directly connected to the display for manual judgment, or by setting the approved parameters, the corresponding parameters can be obtained through the acquisition unit for checki...

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Abstract

The invention relates belongs to the technical field of communication and relates to a monitoring system, in particular to a transformer partial discharge online monitoring system. The transformer partial discharge online monitoring system comprises a diagnostic analysis unit, and a communication unit is connected to the diagnostic analysis unit. A plurality of collecting units are connected to the communication unit, and a plurality of sensing units connected with an electric transducer are connected to each collecting unit. A plurality of different types of sensors bound together are connected to each sensing unit, and a power supply module is arranged on each sensor. Compared with the prior art, the transformer partial discharge online monitoring system has the advantages that a piezoelectric sensor keeps away from the magnetic noises of an iron core and the mechanical vibration and noises of a transformer; a super-high-frequency sensor does not play a role of capacity coupling but plays a role of an antenna for receiving super-high-frequency signals, the diagnostic analysis unit can simultaneously start the operation of a plurality of modules to realize data reference among the different modules; the communication unit has diversified ways and also can be suitable for all kinds of environment in the data transmission process.

Description

technical field [0001] The invention relates to the technical field of communication, and refers to a monitoring system, in particular to an on-line monitoring system for partial discharge of transformers. Background technique [0002] Partial discharge is one of the main reasons for the insulation degradation of power equipment. Each discharge, the impact of high-energy electrons or accelerated electrons, especially long-term partial discharge, will cause various forms of physical effects and chemical reactions, such as charged particles impacting bubbles When the outer wall is damaged, it may break the chemical bonds of the medium, destroy the molecular structure of the medium, cause insulation degradation, and accelerate the insulation damage process. In severe cases, it may lead to equipment failure and even affect the normal operation of the power grid. [0003] In a complex electrical equipment, discharges occurring in different parts have different effects on insulat...

Claims

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Application Information

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IPC IPC(8): G01R31/12
Inventor 陈如申黎勇跃
Owner HANGZHOU SHENHAO TECH
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