Transformer on-load tap changer diagnostic system and transformer on-load tap changer diagnostic method
A voltage regulating switch and diagnostic system technology, applied in the field of transformers, can solve the problems of low diagnostic accuracy, low detection sampling rate of devices and systems, etc.
Pending Publication Date: 2019-12-20
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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[0003] Based on this, it is necessary to provide a transformer on-load tap changer diagnosis system and a transformer on-load tap changer diagnostic system for real-time monitoring of the mechanical characteristics of the transformer on-load tap changer. Diagnosis method of pressure regulating switch
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[0018] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the associated drawings. Preferred embodiments of the invention are shown in the drawings. However, the present invention can be embodied in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.
[0019] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical", "horizontal", "left", "right", "upper", "lower", "front", "rear", "circumferential" and...
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The present invention relates to the technical field of transformers, and discloses a transformer on-load tap changer diagnostic system and a transformer on-load tap changer diagnostic method. According to the transformer on-load tap changer diagnostic system, a sensing module is used for collecting a state signal during operation of a transformer on-load tap changer and transmitting the state signal to a processing module, wherein the state signal comprises a current signal and a rotation angle signal of a driving motor of the transformer on-load tap changer and a vibration signal during operation of the transformer on-load tap changer. The processing module is used for processing the state signal and obtaining a digital signal. A transmission module transmits the digital signal to a diagnostic module, and the diagnostic module processes the digital signal and obtains a diagnostic result of the transformer on-load tap changer. The sensing module implements mechanical characteristics monitoring of the transformer on-load tap changer, and the diagnostic module performs time domain and frequency domain feature discrimination on the digital signal, so that diagnostic accuracy and reliability is improved.
Description
technical field [0001] The invention relates to the technical field of transformers, in particular to a transformer on-load tap changer diagnosis system and a transformer on-load tap changer diagnosis method. Background technique [0002] The transformer on-load tap changer is the only movable key component in the power transformer, and its operating status is related to the reliable operation of the power transformer and even the entire power grid system. Conventional inspections of performance such as temperature and oil pressure can only be carried out when the transformer is offline, and the mechanical characteristics of the on-load tap changer cannot be obtained in time. At the same time, the existing real-time monitoring and diagnosis system for the mechanical characteristics of the transformer OLTC has the problems of low detection sampling rate and low diagnosis accuracy. Contents of the invention [0003] Based on this, it is necessary to provide a transformer on...
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IPC IPC(8): G01M13/00G01H11/08
CPCG01M13/00G01H11/08
Inventor 陈莎莎杨森李光茂莫文雄朱晨乔胜亚刘建成邓剑平黄柏刘宇朱璐
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD