High leakage reactance type level adjustable series iron-core reactor

Abstract

A high leakage reactance type step speed adjustable series connection iron core reactor is composed of an upper yoke core, a bottom yoke, a bypass core, a main core, a main winding coil, a control winding coil, an air gap section. The structure of the novel reactor is different from the general reactor, since the bypass core arranged in the general main core is sleeved with the control winding coil, the capacity of the reactor is changed by controlling the on and off of the control winding coil to adjust the capacity of the reactor, and the change of the connection mode of the winding can be performed with power failure, thereby reducing the economic loss caused by the power failure to change the capacity of the reactor.

Description

technical field [0001] The invention relates to electrical equipment for reactive power compensation in a power grid, in particular to an adjustable reactor. Background technique [0002] Power system reactive power compensation widely adopts switchable parallel capacitor bank as dynamic reactive power compensation device. Since the capacity of capacitor bank changes in stages, it is required to change the reactance value of the matching series reactor accordingly to ensure 6% series reactance value or other reactance value requirements. [0003] The turn-adjusting reactor widely used at present is composed of an iron core with an air gap and a main coil with a tap. The number of turns of the main coil and the length of the core air gap determine the rated capacity of the reactor. The reactor capacity (reactance value) is changed by changing the taps of the reactor, and changing the taps of the reactor must be carried out in the event of a power failure, which will affect ...

AI Technical Summary

Problems solved by technology

Change the reactor capacity (reactance value) by changing the tap of the reactor, and changing the tap of the reactor must be carried out in the event of a power failure, which will affect the normal operation of the power equipment

[0004] At present, there is no reactor that can change the capacity of the series reactor without power failure

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