EMTP simulation of induced overvoltage in low voltage system

Author

Pham, Thinh ; Pham, Nhung ; Tran, Top V.

Author_Institution

Inst. of Mater. Sci., Univ. of Connecticut, Storrs, CT, USA

fYear

2010

Firstpage

1

Lastpage

4

Abstract

Shielded by high structure surrounding and with short length of power line, low voltage system is seldom suffered from direct strokes. However, this system is especially threatened by induced voltage due to nearby strokes. The effects of induced overvoltage may be very harmful to power quality and to low BIL peculiar to electrical equipment in low voltage system. In this work, the induced overvoltage in a typical low voltage system in rural areas of Vietnam will be investigated by EMTP/ATP simulation. Rusk model is used to simulate the current source affecting the low voltage system. The influence of grounding resistance in consumer side and the size of load will be analyzed. The discussion and results may provide useful information in insulation coordination of low voltage system.

Keywords

EMTP; overvoltage protection; power supply quality; power system simulation; EMTP/ATP simulation; Vietnam; electrical equipment; induced overvoltage EMTP simulation; insulation coordination; low voltage system; power line; power quality; rusk model; EMTP; Grounding; Lightning; Low voltage; Materials science and technology; Power system simulation; Power transformer insulation; Power transmission lines; Transmission line theory; Voltage control; ATP/EMTP simulation; Rusk´s theory; induced lightning; low voltage system;

fLanguage

English

Publisher

ieee

Conference_Titel

Electrical Insulation (ISEI), Conference Record of the 2010 IEEE International Symposium on

Conference_Location

San Diego, CA

ISSN

1089-084X

Print_ISBN

978-1-4244-6298-8

Type

conf

DOI

10.1109/ELINSL.2010.5549828

Filename

5549828