Intelligent intertripping load spare power automatic switching device

Abstract

The invention relates to a spare power automatic switching device, in particular to an intelligent intertripping load spare power automatic switching device, and belongs to the technical field of power system relay protection. According to the technical scheme, the intelligent intertripping load spare power automatic switching device comprises a first voltage transformer, a second voltage transformer, a first current transformer and a second current transformer, wherein the first voltage transformer is used for collecting the voltage of a first 10 KV bus section, the second voltage transformer is used for collecting the voltage of a second 10 KV bus section, the first current transformer is used for collecting the current of an outgoing line connected to the first 10 KV bus section, and the second current transformer is used for collecting the current of an outgoing line connected to the second 10 KV bus section; the first voltage transformer, the second voltage transformer, the first current transformer and the second current transformer are all connected with a load spare power automatic switching device body. The intelligent intertripping load spare power automatic switching device is compact in structure and convenient to operate, can collect transformer loads and outgoing line loads in real time, can guarantee the safe and reliable spare power automatic switching movement, and can guarantee continuous power supply and power supply safety of a user.

Description

technical field [0001] The invention relates to a standby automatic switching device, in particular to an intelligent connected load-shedding standby automatic switching device, which belongs to the technical field of electric power system relay protection. Background technique [0002] The existing standby automatic switching device can start when the bus voltage is lost, cut off the power switch of the de-energized bus after a delay, and close the backup power switch of the de-energized bus, so as to improve the power supply reliability of the power grid. [0003] Because the current standby automatic switching device does not have the function of judging whether there is an overload of the power supply transformer when the standby automatic switching is in action. As a result, some substations with overload problems need to perform frequent manual switching operations according to the size of the load, which consumes a lot of manpower and material resources. At the same ...

AI Technical Summary

Problems solved by technology

Some substations with overload problems need to perform frequent manual switching operations according to the load size, which consumes a lot of manpower and material resources

At the same time, when the standby automatic switch is withdrawn, if a bus power failure occurs, the power supply of important users will be interrupted, causing a great social impact

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