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Electronic mutual inductor performance real-time monitoring system and method

An electronic transformer, real-time monitoring system technology, applied in instruments, measuring devices, measuring electrical variables, etc., can solve problems such as lack of field operation experience, and achieve the effect of rich reliability and long-term stability, and easy implementation.

Inactive Publication Date: 2015-01-28
XJ ELECTRIC +1
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  • Abstract
  • Description
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Problems solved by technology

[0005] The purpose of the present invention is to provide a real-time monitoring system and method for the performance of electronic transformers, so as to change the problem of lack of experience in field operation of current electronic transformers after technical improvement

Method used

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  • Electronic mutual inductor performance real-time monitoring system and method
  • Electronic mutual inductor performance real-time monitoring system and method
  • Electronic mutual inductor performance real-time monitoring system and method

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Embodiment Construction

[0026] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0027] An embodiment of a real-time monitoring system for electronic transformer performance of the present invention

[0028] Such as figure 1 As shown, the electronic transformer performance real-time monitoring system of the present invention includes an analog quantity acquisition and merging unit, a digital quantity acquisition and merging unit, a time synchronization device and a real-time monitoring device, and the time synchronization device is respectively combined with the real-time monitoring device and the digital quantity acquisition through an optical fiber The unit is connected to the analog quantity acquisition and merging unit, and the output ends of the analog quantity acquisition and merging unit and the digital quantity acquisition and merging unit are connected to the input end of the real-time monitoring device through ...

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Abstract

The invention relates to an electronic mutual inductor performance real-time monitoring system and method, and belongs to the technical field of automation of an electric power system. The method comprises: first of all, synchronously acquiring the protection, measuring and metering voltage and current quantities of a routine mutual inductor and an electronic mutual inductor in a transformer station and the state information of the electronic mutual inductor itself; and then according to a set time interval, comparing an amplitude difference and a phase difference between the same-phase sampling data of the routine mutual inductor and the electronic mutual inductor, determining whether the amplitude difference and the phase difference of the two are within a set permissible scope, if the amplitude difference or the phase difference exceeds the set scope, performing calculating on the amplitude difference or the phase difference, sending alarm information, and at the same time, recording the state information of the electronic mutual inductor itself at the moment so as to realize real-time monitoring of the electronic mutual inductor. The method provided by the invention is simple, is easy to implement, can monitor the electronic mutual inductor in real time, and provides abundant data support for examination of the operation reliability and the long-term stability of the electronic mutual inductor.

Description

technical field [0001] The invention relates to a real-time monitoring system and method for the performance of an electronic transformer, which belongs to the technical field of electric power system automation. Background technique [0002] With the development and application of optoelectronics, optical fiber communication and digital signal processing technology, electronic transformers based on different methods and different acquisition principles have emerged as the times require. As one of the key equipment for informatization, digitalization, automation, and interactive tasks in smart substations, electronic transformers are important equipment for providing voltage and current signals for power system energy metering, relay protection equipment, and measurement and control equipment. Its operation is stable Safety and reliability are closely related to the safe, reliable and economical operation of the power system. [0003] From 2010 to 2012, electronic transform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/02
Inventor 席亚克易永辉刘桂莲梁经宛牛强刘永欣陶永健姜帅
Owner XJ ELECTRIC
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