Arc extinction system for power transmission network

Abstract

The invention discloses an arc extinction system for a power transmission network. The arc extinction system comprises a plurality of arc extinction devices, a plurality of circuit breakers, a sensor and a controller, wherein the arc extinction devices are used for providing arc extinction functions; the multiple circuit breakers are connected with the same section of a power transmission line; each circuit breaker is further connected with one arc extinction device; the circuit breakers are used for connecting the arc extinction devices into the power transmission line for performing arc extinction on the power transmission line when the circuit breakers are closed; the sensor is connected with the power transmission line and used for detecting the voltage signal and / or the current signal of the power transmission line; and the controller is connected with the multiple circuit breakers, the multiple arc extinction devices and the sensor separately, used for controlling the multiple circuit breakers according to the voltage signal and / or the current signal, and also used for adjusting the compensation capacity of the connected arc extinction devices after the circuit breakers are closed. The technical problem of relatively high cost in improvement of ground compensation devices for the power grid in the correlation technique is solved by the arc extinction system for the power transmission network.

Description

technical field [0001] The invention relates to the field of power systems, in particular to an arc suppression system for a power transmission network. Background technique [0002] With the development of science and technology, the scale of power grid construction continues to expand, coupled with the development of the grid structure, the system capacity is getting larger and larger, and the capacitive current of the system to the ground is also increasing. The capacity of the first arc suppression coil used in the original system has been reduced. If the demand cannot be met, in order to make the system run safely and reliably, it is necessary to increase the capacity to meet the compensation requirements of the system. To meet the system operation requirements, the system needs to be modified, and the modification is difficult, and the equipment needs to be replaced as a whole. The investment is too large, which will lead to the scrapping of the original equipment and ...

AI Technical Summary

Problems solved by technology

To meet the system operation requirements, the system needs to be modified, and the modification is difficult, and the equipment needs to be replaced as a whole. The investment is too large, which will lead to the scrapping of the original equipment and cause great waste.

[0003] Aiming at the technical problem of high cost when transforming the grounding compensation equipment of the power grid in the related technology, no effective solution has been proposed so far

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