大容量低压电器试验站对电力系统的影响

Influence of the Low-voltage Apparatus Test Station with Large-capacity on Power System

低压电器试验站为了考核各类开关等电器产品是否满足产品标准规定的各种特性要求,需要模拟各种短路故障,进行大容量的短路试验。大容量试验站电源取自电力系统,实行短路试验工作制,负荷主要是冲击负荷。由于其负荷的特殊性,对于其变电站接入系统也必然有特殊要求。对此种较大的冲击负荷会导致系统公共连接点电压暂降、继电保护等诸多问题进行了分析,介绍了相关问题的解决方案。

In order to test various types of switches and other electrical products are provided to meet the product standards requirements of the various characteristics, the Low-voltage Apparatus Test Station need to simulate a variety of short-circuit fault and carry out Large-capacity of short-circuit test. Power of the Low-voltage Apparatus Test Station with Large-capacity is from the power system. The main work of the Test Station is the short-circuit test. The main load is the impact load. Because of the load have its specificity, for the substation access system will inevitably lead to special requirements. In this paper, It is analyzed the impact of such a large load will cause the system to the public the connection point voltage sag, relay protection and many other issues, introduced the relevant solution to the problem.