Analysis and Assessment on Distribution Voltage Sag Based on Stepped Current Protection

DOI

10.2991/itms-15.2015.73How to use a DOI?

Keywords

Voltage sag; duration; stepped current protection; protection zone; Assessment

Abstract

The duration of voltage sag caused by fault is depended on the fault clearing time of the protection system. In traditional assessments on voltage sag are simply assumed that the duration obeys some distribution of random or is a constant value. In order to depict the duration of voltage sags more precisely, time characteristic of stepped current protection and protection scope of instantaneous current protection are taken into consideration, the two demarcation points of the protection operation on line are determined, the protection operation time of every segment is analyzed. An example is simulated by PSCAD/EMTDC software, and it is shown that more reasonable assessment is obtained by precise duration of voltage sag.

Copyright

© 2015, 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  - Li Ma
PY  - 2015/11
DA  - 2015/11
TI  - Analysis and Assessment on Distribution Voltage Sag Based on Stepped Current Protection
BT  - Proceedings of the 2015 International Conference on Industrial Technology and Management Science
PB  - Atlantis Press
SP  - 307
EP  - 310
SN  - 2352-538X
UR  - https://doi.org/10.2991/itms-15.2015.73
DO  - 10.2991/itms-15.2015.73
ID  - Ma2015/11
ER  -