Connection time study for 400 kV circuit breakers with SF6

International Conference on Applied Sciences

自然科学（总论）

Ciulica, D.^1

Politehnica University of Timisoara, Department of Electrical Engineering and Industrial Informatics, 5 Revolution Street, Hunedoara

331128, Romania^1

关键词: Electrical networks;    High voltage;    Loading regimes;    SF6 circuit breakers;    Supply voltages;    Voltage characteristics;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/477/1/012015/pdf
DOI  :  10.1088/1757-899X/477/1/012015

学科分类：自然科学（综合）

来源: IOP

【 摘 要 】

This paper presents the calculation of the time for the SF6 circuit-breaker operation by studying the voltage characteristic before connecting. Simulated on the basis of the switch characteristics and the factors that interfere with the time, i.e. the temperature and supply voltage of the breaker coil. Connecting the circuit breakers has a very important role in eliminating the vibrating and electrodynamic loading regimes in high voltage electrical networks.