High-voltage circuit breaker capable of realizing loop closing judgment

Abstract

The invention provides a high-voltage circuit breaker capable of realizing loop closing judgment. The high-voltage circuit breaker comprises a circuit breaker body, wherein the body is arranged in a control box; the body comprises an arc extinguishing device, a mutual inductance current guiding device and an operating mechanism; the body is further provided with an energy taking device, a loop closing judgment module and a loop closing data module; the loop closing judgment module and the loop closing data module are connected with the energy taking device separately; the loop closing judgmentmodule comprises an FTU feeder terminal, a signal conversion device and a driving signal output device; the loop closing judgment module and the loop closing data module are connected through a communication device; and the loop closing data module comprises a voltage synchronization detection device, a voltage phase sequence detection device and a switch state detection module. According to thehigh-voltage circuit breaker, the loop closing condition can be judged, and the circuit loop closing operation can be realized; and meanwhile, remote control, isolation safety, data fast response andthe like can be improved, so that comprehensiveness, intelligence, economic benefits and high-quality social service benefits of high-voltage circuit breaker operation can be achieved.

Description

technical field [0001] The invention relates to the technical field of high-voltage load switches, in particular to a high-voltage circuit breaker for realizing loop closure determination. Background technique [0002] With the development of the economy, the progress of the society, and the improvement of the level of science and technology and informationization, the intelligent and coordinated development of electrical equipment is facing new issues and challenges. Relying on modern information, communication and control technologies, it is the future development trend to improve the intelligent level of power grid. For this reason, all power supply enterprises have accelerated the pace of power grid informatization and automation construction. Longqi is very urgent to upgrade and transform high-voltage equipment automation. [0003] High-voltage loop closing refers to the operation of closing the network composed of lines, transformers or circuit breaker strings in the ...

AI Technical Summary

Problems solved by technology

[0003] High-voltage loop closing refers to the operation of closing the network composed of lines, transformers or circuit breaker strings in the electrical operation of the high-voltage system; during the loop-closing operation, it must be ensured that the phases on both sides of the loop-closing point are the same, and the voltage difference and phase angle should comply with It is stipulated that it should be ensured that the power flow change in the closed loop network does not exceed the limitations of grid stability and equipment capacity. For the operation of more complex loop networks, calculation or verification should be carried out first, and relevant parties should be contacted before and after the operation. Therefore, the traditional The ring closure operation of the system needs to calculate a large amount of data, and judge whether the ring closure condition is met; both the operation process and the operation time are relatively cumbersome

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