配电网中接线方式与备自投选取原则的探讨

Discussion on the Principle of Back-up Switching Equipment Selected with the Distribution Network in Connection Method

变电站有多种接线方式,一般分为多电源、双电源、单电源和单主变等。不同的接线方式和负荷状况适合配置不同的备自投方案。通过对电网接线方式和常见备自投动作情况的分析,得出变电站配置进线备自投、分段备自投和主变备自投的原则。

Substations have a variety of connection modes, generally divided into multiple power supplies,dual power supplies, single power supply and single main transformer and so on. Different connection modes and load conditions scheme for configuring different busbar automatic transfer switch. Through the introduction of Network connection and Common automatic bus transfer, came to the principle for the incoming-line back-up switching equipment, Step back-up switching equipment and main transformer back- up switching equipment, in order to maximize the standby power source automatic connection device to play an active role.