Short-time withstand current is one of the crucial nominal parameters in air circuit breaker. A numerical method to evaluate the short-time withstand current is proposed. Cylindrical current carrying bridge is introduced to describe the contact spot between movable and fixed contacts. Taking into account the action of ferromagnetic splitter plates, the variation of the conductor properties with temperature and the variation of contact spot radius with the electro-dynamic repulsion force, a transient finite element calculation model is developed by coupling the electromagnetic field and thermal field. The loaded short circuit current is considered as the short-time withstand current once the highest temperature is near to the melting point of the contact material. It demonstrates that the method is useful to evaluate the performance of the air circuit breaker.
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Honggang XIANG, Degui CHEN, Xingwen LI, Weixiong TONG, "A New Method to Evaluate the Short-Time Withstand Current for Air Circuit Breaker" in IEICE TRANSACTIONS on Electronics,
vol. E91-C, no. 8, pp. 1292-1298, August 2008, doi: 10.1093/ietele/e91-c.8.1292.
Abstract: Short-time withstand current is one of the crucial nominal parameters in air circuit breaker. A numerical method to evaluate the short-time withstand current is proposed. Cylindrical current carrying bridge is introduced to describe the contact spot between movable and fixed contacts. Taking into account the action of ferromagnetic splitter plates, the variation of the conductor properties with temperature and the variation of contact spot radius with the electro-dynamic repulsion force, a transient finite element calculation model is developed by coupling the electromagnetic field and thermal field. The loaded short circuit current is considered as the short-time withstand current once the highest temperature is near to the melting point of the contact material. It demonstrates that the method is useful to evaluate the performance of the air circuit breaker.
URL: https://global.ieice.org/en_transactions/electronics/10.1093/ietele/e91-c.8.1292/_p
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@ARTICLE{e91-c_8_1292,
author={Honggang XIANG, Degui CHEN, Xingwen LI, Weixiong TONG, },
journal={IEICE TRANSACTIONS on Electronics},
title={A New Method to Evaluate the Short-Time Withstand Current for Air Circuit Breaker},
year={2008},
volume={E91-C},
number={8},
pages={1292-1298},
abstract={Short-time withstand current is one of the crucial nominal parameters in air circuit breaker. A numerical method to evaluate the short-time withstand current is proposed. Cylindrical current carrying bridge is introduced to describe the contact spot between movable and fixed contacts. Taking into account the action of ferromagnetic splitter plates, the variation of the conductor properties with temperature and the variation of contact spot radius with the electro-dynamic repulsion force, a transient finite element calculation model is developed by coupling the electromagnetic field and thermal field. The loaded short circuit current is considered as the short-time withstand current once the highest temperature is near to the melting point of the contact material. It demonstrates that the method is useful to evaluate the performance of the air circuit breaker.},
keywords={},
doi={10.1093/ietele/e91-c.8.1292},
ISSN={1745-1353},
month={August},}
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TY - JOUR
TI - A New Method to Evaluate the Short-Time Withstand Current for Air Circuit Breaker
T2 - IEICE TRANSACTIONS on Electronics
SP - 1292
EP - 1298
AU - Honggang XIANG
AU - Degui CHEN
AU - Xingwen LI
AU - Weixiong TONG
PY - 2008
DO - 10.1093/ietele/e91-c.8.1292
JO - IEICE TRANSACTIONS on Electronics
SN - 1745-1353
VL - E91-C
IS - 8
JA - IEICE TRANSACTIONS on Electronics
Y1 - August 2008
AB - Short-time withstand current is one of the crucial nominal parameters in air circuit breaker. A numerical method to evaluate the short-time withstand current is proposed. Cylindrical current carrying bridge is introduced to describe the contact spot between movable and fixed contacts. Taking into account the action of ferromagnetic splitter plates, the variation of the conductor properties with temperature and the variation of contact spot radius with the electro-dynamic repulsion force, a transient finite element calculation model is developed by coupling the electromagnetic field and thermal field. The loaded short circuit current is considered as the short-time withstand current once the highest temperature is near to the melting point of the contact material. It demonstrates that the method is useful to evaluate the performance of the air circuit breaker.
ER -