基于无源无线测温技术的厂用母线快速保护

Fast auxiliary bus ptotection based on passive wireless temperature measurement technology

针对常规发电厂厂用母线保护存在的问题,提出了采用无源无线温度监测技术实现厂用母线快速保护的措施。在传统的继电保护框架下,应用非电量保护消除6 k V厂用母线故障时电量保护死区,以达到快速切换6 k V厂用母线故障,保护高压厂用变压器或启动备用变压器等一次设备的目的。

There were problems in traditional auxiliary bus protection of power plant. Aiming at these problems,it was proposed that to adopt passive wireless temperature measuring technology to realize fast auxiliary bus protection. Under the framework of traditional relay protection,the non-electrical signals protection is used to eliminate the protection dead zone of electrical signals protection for faults of 6 kV auxiliary bus and to quikly switch the fault of 6 kV auxiliary bus. Then the primary equipments,such as the high voltage auxiliary transformer and the startup and standby transformer,can be protected.