Protection method and device for high-voltage plant transformer branch and electronic equipment

By detecting the branch current of the transformer branches in high-voltage factory and triggering the corresponding protection mechanism, the problem of transformer damage caused by failure in the prior art is solved, and rapid failure removal and transformer protection are achieved.

CN119695785APending Publication Date: 2025-03-25INNER MONGOLIA MENGDA POWER GENERATION CO LTD
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Patent Information

Application Number
CN202411760520.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-03
Publication Date
2025-03-25

AI Technical Summary

Technical Problem

The existing high-voltage factory-based transformer branches will burn the transformer when the circuit breaker is refused to move or the fault position makes it impossible to quickly remove the fault, which will cause the transformer to be burned.

Method used

By detecting the branch current of the high-voltage factory transformer branch, if the preset branch speed break value exceeds, the branch speed break protection mechanism will be triggered to cut off the fault point; if it is not cut off, the branch failure protection mechanism will be triggered to further cut off the fault point.

Benefits of technology

It realizes the rapid removal of the fault point when a fault occurs, prevents the fault current from causing damage to the transformer, and further removes the fault point through the branch failure protection mechanism when the branch speed break protection fails, reducing damage to the transformer.

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Abstract

The invention discloses a protection method and device for a high-voltage plant transformer branch and electronic equipment, and relates to the technical field of power systems, and the method comprises the steps: detecting the branch current of the high-voltage plant transformer branch; if the branch current exceeds the preset branch quick-break value, a branch quick-break protection mechanism is triggered, and the branch quick-break protection mechanism is used for cutting off a fault point on the first high-voltage plant transformer branch; if the fault point on the first high-voltage plant transformer branch is not cut off, a branch failure protection mechanism is triggered, and the branch failure protection mechanism is used for further cutting off the fault point on the first high-voltage plant transformer branch. According to the embodiment of the invention, when it is monitored that the branch current exceeds the preset branch quick-break value, a branch quick-break protection mechanism can be triggered, so that a fault point is quickly cut off, and the damage of the fault current to the transformer is prevented; and if the fault point is not successfully removed, a branch failure protection mechanism can be triggered, and further measures are taken to remove the fault point, so that the damage to the high-voltage plant transformer is reduced.
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