摘要
低压电器试验站为模拟各种短路故障,需要大电流进行试验。其试验变压器及高压侧电抗器和电阻的电气参数均可以调节以满足不同短路状态下的试验要求。此类特殊用户接入35 kV系统给系统35 kV线路的整定配合带来困难。文章分析了普通用户(电气参数无变化)35 kV进线保护的整定方法,同时提出了一种新的计算方法以满足瞬间大电流且可调变压器的工作需要,对继电保护整定计算工作有一定的指导作用。
In order to simulate different short-circuit faults, large current will be required in the especial test.The transformer can be adjusted to satisfy the needs of different short-circuit faults,so does reactor and resistance.It has difficulty in the setting-calculation of 35kV power-line when the especial consumer is bowed in the 35kV power-grid system.This paper analyses the setting-calculation method of 35kV incoming relay-protection in the common consumer which has the unchangeable electric-parameter,and proposes a new setting-calculation method to satisfy the needs of the large current instant and the adjusted- transformer. It provides a reference for setting-calculation.
出处
《继电器》
CSCD
北大核心
2006年第24期13-15,共3页
Relay
关键词
试验站
大电流
进线保护
整定方法
test station： large current： incoming relay-protection
setting method
