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Intelligent adjusting device and method for power grid

A technology of intelligent regulation and power grid, applied in the direction of circuit devices, circuits, inductors, etc., to achieve the effects of good dynamic and thermal stability, large resistance loss, and easy balance of ampere-turns

Active Publication Date: 2015-03-11
ZHONGHUI ELECTROMECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a power grid intelligent adjustment device and its adjustment method, reduce the load loss of the minimum tap, and solve the problem of continuous tracking load voltage regulation

Method used

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  • Intelligent adjusting device and method for power grid
  • Intelligent adjusting device and method for power grid
  • Intelligent adjusting device and method for power grid

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Experimental program
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings.

[0019] Such as figure 1 As shown, the power grid intelligent adjustment device includes a transformer tapped winding 11, two coarse tap selectors 12 and 13 connected to each tap of the transformer tapped winding 11, and connected to the winding joints of the coarse tap selectors 12 and 13 The fine tap selector 14 and the changeover switch 2 for switching the coarse tap selector 12 or the fine tap selector 13; two of the contacts of the coarse tap selector 12 are connected with the tap selector One of the contact contacts of two 13 is connected, one of the winding contacts of the subdivision selector 14 is connected with the adjustment tap Q of the selector two 13, and the two contacts of the diverter switch 13 are connected with the tap respectively. The adjusting tap K of the selector 12 is connected with one of the contacts of the fine tap selector 14, so that the d...

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PUM

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Abstract

The invention provides intelligent adjusting device and method for a power grid. The device comprises a transformer tapping winding, two coarse tapping selectors respectively connected with each tapping joint of the transformer tapping winding, fine tapping selectors connected with winding joints of the coarse tapping selectors, and a selector switch for switching to select the coarse tapping selectors or the fine tapping selectors; two contactors of the first coarse tapping selector is connected with one of the contactors of the second tapping selector; one winding contactor of the fine tapping selector is connected with an adjusting tapping joint Q of the second elector; two contactors of the selector switch are respectively connected an regulating tapping joint K of the first tapping selector and one contactor of the fine tapping selector and used for performing coarse and fine adjusting of a transformer by switching the fine tapping contactors and the two coarse tapping selectors.

Description

[0001] technical field [0002] The invention relates to the technical field of power grid access systems, in particular to a power grid intelligent adjustment device and an adjustment method thereof. [0003] Background technique [0004] Voltage is an important quality indicator in the power system. Since power generation and power consumption cannot be balanced, voltage fluctuations are inevitable, which requires on-load tap-changers to regulate voltage. At present, most domestic power transformers use linear modulation and positive and negative voltage regulation circuits. Linear adjustment means that the main winding is connected to the tap winding, and the voltage regulation range is 15%. Positive and negative regulation means that the main winding can be directly or reversely connected to the tap winding, and the voltage regulation range is doubled; Due to the large current and too many anti-series turns during the minimum tap, not only the excessive load loss o...

Claims

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Application Information

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IPC IPC(8): H01F29/00H01F27/28H02J3/00
Inventor 殷振康魏文品许雯
Owner ZHONGHUI ELECTROMECHANICAL TECH
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