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Load capacity and pressure regulating switch for transformer

A voltage regulating switch and transformer technology, applied in the field of transformer components, can solve the problems of high transformer cost, unsuitable transformer, complex structure, etc., and achieve the effects of low cost, low fluctuation rate and simple structure

Active Publication Date: 2007-12-19
SHENYANG KEQI ELECTRICAL EQUIP
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The main technical problems are: 1. Since this winding rearrangement on-load switch can only adjust the capacity of the transformer, it is not suitable for transformers that can adjust the output voltage without interrupting the load due to large grid voltage fluctuations; 2. If it is necessary to adjust the output voltage of the transformer when it is excited, an on-load tap changer is required. Therefore, not only the cost of the transformer is increased, the volume is large, but the structure is also complicated.

Method used

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  • Load capacity and pressure regulating switch for transformer
  • Load capacity and pressure regulating switch for transformer
  • Load capacity and pressure regulating switch for transformer

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Embodiment Construction

[0029] Refer to Figures 1-18. The present invention comprises a high-voltage fixed contact 6, a high-voltage movable contact 7, a low-voltage fixed contact 10, a low-voltage movable contact 11, an operating mechanism 1, a fast mechanism 2, an insulating cylinder 4, an oil chamber 5, a main shaft 3, and a dial 8. The on-load capacity adjustment part formed by dialing piece 9. The structural features of the present invention are: the voltage regulating fixed contact 14 is also installed on the insulating cylinder 4 of the on-load capacity regulating part, and the oil chamber formed by the insulating cylinder 4 under the voltage regulating operating mechanism 15 and the voltage regulating fast mechanism 16 5 is equipped with a pressure regulating bracket 12, the upper end of the pressure regulating bracket 12 is connected with the pressure regulating fast mechanism 16, and the pressure regulating bracket 12 is equipped with a pressure regulating movable contact 13, and the pressu...

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Abstract

This invention relates to a load capacitance and voltage regulation switch characterizing in the following structure: a voltage-regulation static contactor is mounted on an insulated drum of a load capacitance-regulation part, a voltage -regulating bracket is set in the drum, a voltage-regulation dynamic contactor and a transition resistor are set on the bracket to integrate the load capacitance and voltage regulation, a set of operation unit is used between the quick unit of the capacitance and the voltage regulation parts by an electromagnetic clutch and an electric control box is set for adjusting capacitance and voltage automatically according to the change of loading current and voltage of a transformer.

Description

technical field [0001] The invention belongs to transformer components, and is a device for adjusting capacity and voltage of a transformer under excitation or uninterrupted load state, and is especially suitable for capacity and voltage regulation distribution transformers with large load changes and large grid voltage fluctuations. Background technique [0002] At present, the transformer winding rearrangement on-load switch disclosed in ZL Patent No. 00212759.8 is aimed at switching the three-phase high-voltage windings of the transformer from angle to star connection, and switching each phase of low-voltage windings from parallel to series to realize winding rearrangement. Adjust transformer capacity. It is mainly composed of high-voltage fixed contacts, high-voltage moving contacts, low-voltage fixed contacts, low-voltage moving contacts, operating mechanisms, fast mechanisms, dials, dials, insulating cylinders, etc. The main technical problems are: 1. Since this windi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01F29/04H01H3/00
Inventor 邵长青
Owner SHENYANG KEQI ELECTRICAL EQUIP
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