Open AccessDETERMINE POSITIONS OF ARESTERS BASE ON REDUCING RISK OF FAILURE
Author(s) -
Ánh Huy Quyền,
Hoang Q. Nguyen
Publication year - 2012
Publication title -
khoa học công nghệ
Language(s) - English
Resource type - Journals
ISSN - 1859-0128
DOI - 10.32508/stdj.v15i2.1788
Subject(s) - surge arrester , lightning arrester , transformer , reliability engineering , engineering , electrical engineering , voltage
Location of surge arrester placement in protection scheme significantly affects the power station performance against overvoltages due to lightning stroke propagation. Failure probability of the equipments in transformer station will be dependent heavily on the front-of- wave slope and peak value of incoming lightning strokes. In the paper simulation technique and statistical analysis are used to estimate the risk of failure of important nodes and determine the appropriate locations of arresters in electric network. Economic and permissible risk estimation criteria are then implemented in a program allowing the determination of good locations of arresters in distribution stations protection.