低压分段断路器备自投方式（Automatic switching mode for low voltage sectional circuit breaker）.docVIP

低压分段断路器备自投方式（Automatic switching mode for low voltage sectional circuit breaker） In power system, because the failure or other reasons to work off the power supply to standby power supply and standby equipment or other power supply automatically quickly into the work, the automatic control device so that the user can restore power supply as soon as possible, bpat device (AAT device). The automatic switching device can improve the reliability of power supply, simplify the configuration of relay protection, limit short circuit current and increase the residual pressure of busbar. With the improvement of the reliability of the power supply, the automatic switching device has been widely used. It is an important means for the power sector to ensure continuous and reliable power supply. There are many ways to configure the standby power supply, the form is complex, and generally there are two basic ways of clear standby and dark standby. When the system is in normal operation, the standby power supply does not work. It is called clear standby. When the system is in normal operation, the standby power supply is also put into operation. It is called dark standby, and the dark reserve is actually the alternate supply of two working power supplies. The main low voltage bus section breaker autorestart, bridge breaker standbyautomationswitching and line autorestart three schemes, the low voltage side of transformer used in engineering section breaker auto switching scheme and the principle of. 1 transformer low voltage side circuit breaker preparation from the principle of throwing Transformer low voltage side sectional breaker autorestart four from the vote, in the work, the basic requirements for them is the same, should abide by certain principles, in order to ensure the normal work of the device, ensure network security, reliable and stable operation. The backup device must be put into operation when the power supply is out of order and the standby power is normal. When th