Effect of Voltage Level Selection on Earthing and Protection of LVDC Distribution Systems

Author

Karppanen, J. ; Kaipia, T. ; Nuutinen, P. ; Lana, A. ; Peltoniemi, P. ; Pinomaa, A. ; Mattsson, A. ; Partanen, J. ; Jintae Cho ; Jaehan Kim

Author_Institution

Lappeenranta Univ. of Technol. (LUT), Lappeenranta, Finland

fYear

2015

fDate

10-12 Feb. 2015

Firstpage

1

Lastpage

8

Abstract

This paper concentrates on the effects of d.c. mains voltage level selection on earthing and protection of the low voltage direct current (LVDC) distribution systems. Among the low voltage range the possibilities are to go up to 1500 VDC in unipolar and ±750 VDC in bipolar LVDC system. Voltage level selection is one of the main tasks in LVDC system design process as it directly affects the electric safety, structure and life-cycle costs of the system. The main outcome of the paper is on presenting the essential design aspects from earthing system and protection setup perspective, by utilizing case examples.

Keywords

earthing; power distribution protection; LVDC distribution system protection; earthing system; low voltage direct current distribution systems; voltage level selection; Low voltage direct current; earthing; electricity distribution; protection; voltage level;

fLanguage

English

Publisher

iet

Conference_Titel

AC and DC Power Transmission, 11th IET International Conference on

Conference_Location

Birmingham

Print_ISBN

978-1-84919-982-7

Type

conf

DOI

10.1049/cp.2015.0057

Filename

7140591