A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay

A gas relay in the transformer, an important non-electricity protection equipment, only triggers the stem leaf spring for the serious gas alarm when the baffle rotates to a certain angle, which cannot judge the transformer fault in the event of heavy gas before running state and fault development pr...

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Main Authors: Bai Peixian, Xie Yiling, Dou Longjiang
Format: Article
Language:English
Published: EDP Sciences 2023-01-01
Series:MATEC Web of Conferences
Subjects:
Online Access:https://www.matec-conferences.org/articles/matecconf/pdf/2023/09/matecconf_amme2023_01042.pdf
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author Bai Peixian
Xie Yiling
Dou Longjiang
author_facet Bai Peixian
Xie Yiling
Dou Longjiang
author_sort Bai Peixian
collection DOAJ
description A gas relay in the transformer, an important non-electricity protection equipment, only triggers the stem leaf spring for the serious gas alarm when the baffle rotates to a certain angle, which cannot judge the transformer fault in the event of heavy gas before running state and fault development process, this paper puts forward a kind of based on gas relay panel corner of transformer running state monitoring methods. The partial structure of the gas relay is improved, and the baffle corner signal is extracted by installing a Hall sensor on the back of the baffle. On this basis, this paper develops a test stand capable of simulating the baffle characteristics of gas relays at different fault energies. Subsequently, the baffle angle variation law under different fault energies is studied, and the influence of pipe pressure and pipe flow rate on the baffle angle is given. The results show that, based on this improved gas relay, the real-time baffle angle information can reflect the internal operating state of the transformer and provide an effective method for transformer operating condition monitoring.
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spelling doaj.art-8e391cedda2d48bb947dbd29cd9172ba2023-07-21T09:55:59ZengEDP SciencesMATEC Web of Conferences2261-236X2023-01-013820104210.1051/matecconf/202338201042matecconf_amme2023_01042A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas RelayBai Peixian0Xie Yiling1Dou Longjiang2Electrical Engineering and its Automation of North China Electric Power University)Electrical Engineering and its Automation of North China Electric Power University)Electrical Engineering and its Automation of North China Electric Power University)A gas relay in the transformer, an important non-electricity protection equipment, only triggers the stem leaf spring for the serious gas alarm when the baffle rotates to a certain angle, which cannot judge the transformer fault in the event of heavy gas before running state and fault development process, this paper puts forward a kind of based on gas relay panel corner of transformer running state monitoring methods. The partial structure of the gas relay is improved, and the baffle corner signal is extracted by installing a Hall sensor on the back of the baffle. On this basis, this paper develops a test stand capable of simulating the baffle characteristics of gas relays at different fault energies. Subsequently, the baffle angle variation law under different fault energies is studied, and the influence of pipe pressure and pipe flow rate on the baffle angle is given. The results show that, based on this improved gas relay, the real-time baffle angle information can reflect the internal operating state of the transformer and provide an effective method for transformer operating condition monitoring.https://www.matec-conferences.org/articles/matecconf/pdf/2023/09/matecconf_amme2023_01042.pdftransformergas relaybaffle anglestate monitoring
spellingShingle Bai Peixian
Xie Yiling
Dou Longjiang
A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay
MATEC Web of Conferences
transformer
gas relay
baffle angle
state monitoring
title A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay
title_full A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay
title_fullStr A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay
title_full_unstemmed A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay
title_short A Method for Monitoring Operation Status of Oil-immersed Transformer Based on the Baffle Angle Characteristic of Gas Relay
title_sort method for monitoring operation status of oil immersed transformer based on the baffle angle characteristic of gas relay
topic transformer
gas relay
baffle angle
state monitoring
url https://www.matec-conferences.org/articles/matecconf/pdf/2023/09/matecconf_amme2023_01042.pdf
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AT doulongjiang amethodformonitoringoperationstatusofoilimmersedtransformerbasedonthebaffleanglecharacteristicofgasrelay
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