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Distribution transformer with independent oil chamber switch

A technology for distribution transformers and transformers, applied in the field of distribution transformers, can solve problems such as poor reliability of power supply and short service life of distribution transformers, and achieve the effects of improving reliability, prolonging service life, and avoiding impact

Pending Publication Date: 2021-11-02
STATE GRID HUNAN ELECTRIC POWER +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to propose a distribution transformer with independent oil chamber switch, which aims to solve the technical problems of short service life and poor power supply reliability of distribution transformers in the prior art

Method used

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  • Distribution transformer with independent oil chamber switch
  • Distribution transformer with independent oil chamber switch
  • Distribution transformer with independent oil chamber switch

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0026] It should be noted that if there is a directional indication (such as up, down, left, right, front, back...) in the embodiment of the present invention, the directional indication is only used to explain the position in a certain posture (as shown in the accompanying drawing). If the specific posture changes, the directional indication will also change accordingly.

[0027] In addition, if there are descriptions involving "first", "second" and ...

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Abstract

The invention discloses a distribution transformer with an independent oil chamber switch. The distribution transformer comprises: a transformer body which is provided with a switch groove with an opening at one end; and an on-load tap changer comprising a sealing plate and a switch body arranged on the sealing plate, wherein the switch body is accommodated in the switch groove, a moving contact is in close contact with a static contact through a pressure spring, and the sealing plate covers the opening and seals the switch groove. Through cooperation between the transformer body and the on-load tap changer, the influence on the transformer body when the switch body acts can be effectively avoided, and the service life of the distribution transformer with the independent oil chamber switch can be prolonged while the power supply reliability of the distribution transformer with the independent oil chamber switch is improved.

Description

technical field [0001] The invention relates to the technical field of electrical engineering, in particular to a distribution transformer with an independent oil chamber switch. Background technique [0002] The distribution transformer is a key part of the power supply for residents. Its output voltage directly supplies electricity for residents. The qualified rate of output voltage is a key indicator for the reliability assessment of electricity consumption. With the implementation of the rural revitalization strategy in recent years, the improvement of the qualified rate of rural power supply has been widely concerned. However, the power supply radius of rural distribution network lines is large, and the resulting low voltage and overvoltage problems have seriously affected the qualified rate of power supply. And generally low voltage and overvoltage are mainly concentrated in specific periods of the day. For example, low voltage is prone to occur during the peak period ...

Claims

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Application Information

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IPC IPC(8): H01F27/02H01F27/12
CPCH01F27/022H01F27/12
Inventor 陆佳政方针蒋正龙周秀冬黄清军朱远胥望朱思国谭艳军
Owner STATE GRID HUNAN ELECTRIC POWER
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