Simulation of transformer PD pulse propagation and monitoring for a 500 kV substation

Autor:	Deheng Zhu, Changchang Wang, Xuzhu Dong, Kexiong Tan, Yilu Liu
Rok vydání:	1999
Předmět:	Engineering Emtp business.industry Electrical engineering Distribution transformer law.invention law Bushing Partial discharge Energy efficient transformer Electrical and Electronic Engineering business Transformer effect Transformer Delta-wye transformer
Zdroj:	IEEE Transactions on Dielectrics and Electrical Insulation. 6:803-813
ISSN:	1070-9878
Popis:	This paper discusses the development of a simulation model to study the propagation of partial discharge (PD) pulses of transformers in a 500 kV substation. The results will be used to design an on-line PD monitoring system for transformers. The impedance matrix of a 500 kV, single-phase transformer is computed based on geometry data and its external coupling network (often referred to as coupling impedance) is calculated with electromagnetic transients program (EMTP). It was found that the frequency characteristic of the coupling network is complex and that the traditional lumped coupling capacitance representation is only feasible at
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::014c45d2b734d884d5c00bb27a559588 https://doi.org/10.1109/94.822019 Zobrazit plný text záznamu