High leakage reactance type level adjustable series iron-core reactor

An iron-core reactor and high leakage reactance technology, which is applied in the direction of inductors with magnetic cores, transformers/inductor coils/windings/connections, etc., can solve problems such as changing series reactors and affecting the normal operation of power equipment, and achieve reduction The effect of economic loss

Active Publication Date: 2008-11-05
DANDONG XINTAI ELECTRIC
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  • Summary
  • Abstract
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  • Claims
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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,

Method used

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  • High leakage reactance type level adjustable series iron-core reactor
  • High leakage reactance type level adjustable series iron-core reactor
  • High leakage reactance type level adjustable series iron-core reactor

Examples

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Example Embodiment

[0013] The structure of the high leakage reactance step-adjustable series core reactor is as follows: figure 1 and figure 2 As shown, the reactor is composed of upper and lower yoke cores, bypass cores, main cores, main winding coils, control winding coils, and air gap sections. The main winding coil 5 is set on the upper main core 3 of the upper yoke core 1 and the lower main core 4 of the lower yoke core 2. The wiring method of the main winding coil is the same as that of a conventional reactor. The wiring principle is as follows: image 3 As shown, an upper control air gap 10 is provided at the bottom of the upper main iron core 3, a lower control air gap 11 is provided at the upper part of the lower main iron core 4, and a common air gap 12 is provided between the upper and lower control air gaps. The upper bypass core 6 and the lower bypass core 7 are arranged on both sides of the main core 3 and the lower main core 4, the upper control winding coil 8 is set on the uppe...

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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 ...

Claims

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Application Information

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IPC IPC(8): H01F17/04H01F27/28
Inventor 陈柏超闫春利蔡虹孟庆华巩志强
Owner DANDONG XINTAI ELECTRIC
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