A Novel Anti-maloperation Gas Relay for Internal Fault Protection of Oil-immersed Transformers

• Published in: Advances in Electrical and Computer Engineering Vol. 25; no. 1; pp. 21 - 28
• Main Authors: Xue, Bing, Yi, Wanshuang, Li, Yongbo, Liu, Chengxiang, Tian, Siyu, Ma, Jinyang, Zhang, Tengbo, Wan, Shuting
• Format: Journal Article
• Language: English
• Published: Suceava Stefan cel Mare University of Suceava 01.02.2025
• Subjects: Design and construction; Digital Object Identifier; Electric power; Electric transformers; Electrical engineering; Equipment and supplies; False alarms; Faults; Gases; Identification and classification; Measurement; Methods; Protective relays; Real time operation; Relay; Safety and security measures; Sensors; Testing; Transformers; China

The gas relay is an essential non-electric protection device in oil-immersed transformers. Due to the single triggering mode of heavy gas alarm and external faults, gas relay may cause misoperation of heavy gas. A method for preventing misoperation based on gas relay baffle angle information and the...