Analysis on unbalance protection of SCB

DOI

10.2991/icsem.2013.49How to use a DOI?

Keywords

unbalance protection, safety, SCB, PSCAD

Abstract

Shunt capacitor is a main measure to reactive power compensation of power system, which has the advantages of flexibility and economy. In order to guarantee the safety of shunt capacitor, the methods for protecting against over-voltage, under-voltage, over-current and unbalance in circuits according to the different operation modes are used. This paper in detail introduces unbalance protection ways under different connection modes of capacitor group. It is analyzed and calculated that the unbalanced current and voltage with the effects of fault capacitor units, components and fuses on capacitor bank as well through a case of unbalance computation of shunt capacitor banks (SCB) of ungrounded single star with external fuse. It is indicated by PSCAD simulation analysis that the result of theory calculation is the same as the simulation, which provides theory basis of setting the tripping point and alarm point of relay protection.

Copyright

© 2013, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Xiao-ping Xiong
AU  - Jing-jie Hu
AU  - Qiang Fu
PY  - 2013/04
DA  - 2013/04
TI  - Analysis on unbalance protection of SCB
BT  - Proceedings of the 2nd International Conference On Systems Engineering and Modeling (ICSEM 2013)
PB  - Atlantis Press
SP  - 254
EP  - 259
SN  - 1951-6851
UR  - https://doi.org/10.2991/icsem.2013.49
DO  - 10.2991/icsem.2013.49
ID  - Xiong2013/04
ER  -