摘要
若变电站内一台主变压器发生故障,备用电源自动投入装置(备自投)动作有可能会导致另一台主变压器的严重过负荷。如果因此而根据负荷情况退出备自投装置会严重地降低了供电可靠性。在介绍地区电网中几类典型的备自投以及备自投装置的投退判据的基础上,探讨了各主变压器过负荷能力存在的差异性以及备自投装置配合方案对事故后主变压器负荷的影响,并据此改进了一般备自投装置投退判据,提出了合理的备自投装置投退策略。
Busbar automatic transfer switch （BATS） in action will lead to another host transformer overload seriously suppose a main transformer in fault during peak load period. Thus to deactivate BATS considering the load conditions will seriously reduce the reliability of power supply. Several typical kinds of BATS and the criterion of disabling BATS are described, the influence of overload ability of main transformer and coordination of BATS on the load of main transformer after accident are discussed. The criterion of deactivating BATS is improved,as well as the strategy to avoid deactivation of BATS is put forward, so as to improve the reliability of power supply.
出处
《供用电》
2012年第6期33-35,47,共4页
Distribution & Utilization
关键词
地区电网
备用电源自动投入装置
备自投投退
regional power network busbar automatic transfer switch （BATS） ~ deactivation of BATS
