Online monitoring system and monitoring method for turn-to-turn short circuit of power distribution transformer

A kind of technology of distribution transformer and inter-turn short circuit

Inactive Publication Date: 2014-02-05
何正浩
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  • Abstract
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Problems solved by technology

As we all know, for a slight inter-turn short circuit fault, the full load current can often be sent continuously, but the accident point has been burned out. If the inter-turn short circuit is not found in time, the fault will continue to develop, eventually leading to the burning of the transformer, which will cause serious damage to the user. Great impact, seriously affecting power supply security and power supply reliability

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  • Online monitoring system and monitoring method for turn-to-turn short circuit of power distribution transformer
  • Online monitoring system and monitoring method for turn-to-turn short circuit of power distribution transformer

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Embodiment Construction

[0028] In order to be able to understand the above objects, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] In the following description, many specific details are set forth in order to fully understand the present invention, but the present invention can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present invention is not limited by the specific details disclosed below. Example limitations.

[0030] It should be noted that the embodiments of the present application and the features in the embodiments may be combined with each other in the case of no conflict.

[0031] like figure 1 As shown, the on-line monitoring system for inter-turn short circuit of distribution transformers in this embodiment includes an electrical signal acquisition device 10, a si...

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Abstract

The invention relates to an online monitoring system and monitoring method for turn-to-turn short circuit of a power distribution transformer. The online monitoring system and monitoring method aim at monitoring the turn-to-turn short circuit situation of the power distribution transformer in real time and giving out fault diagnosis timely. By means of the online monitoring system and monitoring method, an electrical signal collecting device is utilized to collect electrical parameters of the power distribution transformer, a signal preprocessing unit can convert the collected electrical parameters into digital signals, a digital signal collecting unit collects the digital signals and transmits the digital signals to a data processing and diagnosing unit through a wireless terminal, and the data processing and diagnosing unit can process and analyze the received digital signals and can carry out fault diagnosis according to processed and analyzed results. The online monitoring system and monitoring method can monitor turn-to-turn short circuit of the power distribution transformer in an online mode in real time. Thus, fault can be found timely in early stage, operation accidents can be avoided, the actual service life of the power distribution transformer is prolonged, and power supply reliability is improved.

Description

technical field [0001] The invention relates to fault diagnosis of distribution transformers, in particular to an on-line monitoring system and monitoring method for short-circuit between turns of distribution transformers. Background technique [0002] A distribution transformer is a high-voltage electrical device that realizes the conversion of electric energy of different voltage levels in the power system. It undertakes the task of converting voltage and current and transmitting electric power. Therefore, the performance of the distribution transformer will directly affect the safe and stable operation of the power system. All in all, Transformers are as important as the "heart" of the grid. Similarly, the distribution transformer is also the "heart" of the distribution network, and its normal operation is the key to the normal operation of the entire distribution network system. [0003] After a turn-to-turn short-circuit fault occurs in a distribution transformer, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02G01R31/08
Inventor 何正浩朱璐张晓飞黄忠康高志文李佩夏巍岳鑫桂谈发力
Owner 何正浩
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