Study on Neutral Point Grounding Modes in Medium-Voltage Distribution Network

Author

Zhouxing Fu ; Nan Wang ; Lingling Huang ; Ruoya Zhang

Author_Institution

Sch. of Electr. & Control Eng., Xi´an Univ. of Sci. & Technol., Xi´an, China

fYear

2014

fDate

10-12 June 2014

Firstpage

154

Lastpage

157

Abstract

Our county distribution power network neutral point grounding modes are divided into three categories: Neutral non-earthing system, neutral-point indirect earthing system and direct neutral earthing system. Neutral-point indirect earthing system is divided into neutral grounded though a resistance and neutral grounding via arc suppression coil. This article is based on the MATLAB power system simulation mode of three kind of neutral grounding modes. The MATLAB create different wave forms when the single phase to ground fault happened, which under the 10kV voltage grade in different neutral-point earthing method of in distribution network. Summed up the application ranges of three grounding modes, which under the 10kV voltage grad in power distribution network.

Keywords

earthing; power distribution faults; power system simulation; MATLAB power system simulation mode; arc suppression coil; county distribution power network; direct neutral earthing system; ground fault; medium-voltage distribution network; neutral grounding modes; neutral nonearthing system; neutral point grounding modes; neutral-point indirect earthing system; voltage 10 kV; Coils; Grounding; MATLAB; Medium voltage; Power cables; Resistance; MATLAB; distribution network; grounding methods; neutral point; simulation;

fLanguage

English

Publisher

ieee

Conference_Titel

Computer, Consumer and Control (IS3C), 2014 International Symposium on

Conference_Location

Taichung

Type

conf

DOI

10.1109/IS3C.2014.51

Filename

6845483