Open AccessResearch and Application on the Neutral Grounding Mode in Tianjin Distribution Network
Author(s) -
Cong Zhao,
Hui Ma,
Chi Zhang,
Xiaoguang Xi,
Suya Li,
Zhao Xu Sun
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1601/4/042030
Subject(s) - ground , arc suppression , electromagnetic coil , transformer , electrical engineering , earthing system , mode (computer interface) , engineering , voltage , computer science , physics , electric power system , power (physics) , quantum mechanics , operating system
The paper introduces the present situation of neutral grounding mode in 35kV and 10kV Tianjin distribution network. There are mainly four neutral grounding modes: neutral ungrounded, grounding via arc suppression coil, grounding via low resistance and grounding via intelligent reactor. The advantages and disadvantages of the four neutral grounding modes are compared. According to the development characteristic of Tianjin distribution network, the configuration principle of neutral grounding mode is formulated. In addition, the installation and configuration methods of low resistance and grounding transformer are both given, which provides experience and guidance for the application of low resistance grounding.