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A Discharge Generator Used to Simulate Turn-to-Turn Insulation Breakdown of Transformer Windings

A technology of discharge generator and analog transformer, applied in transformer testing, electrical winding testing, instruments, etc., can solve the problems of high economic cost, increased winding current, and inability to quickly and easily remove inter-turn short-circuit faults.

Active Publication Date: 2022-03-18
BAODING TIANWEI XINYU TECH DEV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] (1) The pre-processing is cumbersome, and the insulation of the transformer may be damaged when lifting the body and leading out the short-circuit lead. After the installation, it is necessary to dehumidify the transformer oil, which will cost a lot of money
[0006] (2) Long-term short-circuit test increases the winding current and temperature, which may damage the insulation performance of the transformer winding, which is not conducive to the long-term operation of the transformer
[0007] (3) It is not possible to remove the inter-turn short circuit fault quickly and conveniently, and observe the working state of the transformer in normal operation

Method used

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  • A Discharge Generator Used to Simulate Turn-to-Turn Insulation Breakdown of Transformer Windings
  • A Discharge Generator Used to Simulate Turn-to-Turn Insulation Breakdown of Transformer Windings

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Embodiment Construction

[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.

[0030] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", The orientation or positional relationship indicated by "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or positional relationship. Elements must hav...

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Abstract

The invention discloses a discharge generator for simulating inter-turn insulation breakdown of a transformer winding. The discharge generator can take power from a low-voltage winding, and includes: a pillar, a power taking device, a conductive device and a conductive magnetic generating device; Compared with some discharge generators for simulation, there is no need to lead out multiple short-circuit leads, and the long-term test will not cause damage to the insulation performance of the transformer winding. The power on and off process is carried out in a timely manner, thereby generating electric sparks and forming a stable discharge effect.

Description

technical field [0001] The invention relates to the technical field of discharge simulation tests, in particular to a discharge generator for simulating inter-turn insulation breakdown of transformer windings. Background technique [0002] Turn-to-turn insulation breakdown of transformer windings will increase the current in the windings, increase the temperature, aggravate the damage to the winding insulation, affect the normal operation of the transformer, and adversely affect the safe, reliable and stable operation of the power system. Therefore, it is of great significance to study the inter-turn insulation breakdown inside the transformer. [0003] For the research on the discharge caused by the inter-turn insulation breakdown inside the transformer, the simulation method is generally used, specifically: multiple short-circuit leads are respectively drawn from each phase winding of the three-phase transformer, and the short-circuit leads are connected to one end of the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/12G01R31/62G01R31/72
CPCG01R31/1263G01R31/62G01R31/72
Inventor 何平冀增华徐丽媛谷振虎郝春霞贾佳刘伟
Owner BAODING TIANWEI XINYU TECH DEV
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