Thermal aging experimental device for transformer insulation under nonuniform winding loss

An experimental device and non-uniform technology, applied in the direction of measuring devices, instruments, measuring electrical variables, etc., can solve the problems of insulation aging deviation, uneven distribution of loss and heat generation, etc., and achieve the effect of improving accuracy

Active Publication Date: 2017-09-22
SOUTHWEST JIAOTONG UNIV
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  • Abstract
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Problems solved by technology

Therefore, in practice, the loss and heat generation distribution in the transformer winding is not uniform, so when using the previous uniform heat source to study the local overheating of the winding and its insulation aging, there will be a large deviation. In order to better study the winding insulation under the non-uniform loss Due to the thermal aging problem of the structure, there is an urgent need for a thermal aging experimental device for transformer insulation under non-uniform loss of windings

Method used

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  • Thermal aging experimental device for transformer insulation under nonuniform winding loss
  • Thermal aging experimental device for transformer insulation under nonuniform winding loss
  • Thermal aging experimental device for transformer insulation under nonuniform winding loss

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Embodiment Construction

[0021] The invention provides a thermal aging experiment device and method for transformer insulation under non-uniform winding loss, which is used to simulate thermal aging of transformer insulation under non-uniform winding loss. The experimental device mainly consists of high-voltage winding 1, low-voltage winding 2, winding Main insulation 3, high voltage side DC power module 4, low voltage side DC power module 5, flow rate control acquisition module 6 and experiment box 7;

[0022] The high-voltage winding 1, the low-voltage winding 2 and the winding main insulation 3 are inside the experiment box 7; the high-voltage winding 1, the winding main insulation 3 and the low-voltage winding 2 are concentric from outside to inside Cylindrical distribution;

[0023] The high-voltage side DC power module 4 is connected to the high-voltage winding 1, and the low-voltage side DC power module 5 is connected to the low-voltage winding 2;

[0024] The winding main insulation 3 is loca...

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Abstract

The invention discloses a thermal aging experimental device for simulating the transformer insulation under nonuniform winding loss. The device is mainly composed of a high voltage winding (1), a low voltage winding (2), winding main insulation (3), a high voltage side direct current power supply module (4), a low voltage side direct current power supply module (5), a flow rate control acquisition module (6) and an experimental box (7). The device provided by the invention can simulate the thermal aging of the transformer insulation under nonuniform winding loss, which helps to study the thermal aging of a transformer under actual running loss to further understand the insulation state of the transformer.

Description

technical field [0001] The invention belongs to the field of insulation state diagnosis of oil-immersed transformers, and in particular relates to a thermal aging experiment device and method for transformer insulation under non-uniform loss of windings. Background technique [0002] The safety of power equipment is the first defense system of the power grid, especially as the key equipment of the power system, the insulation status of large oil-immersed transformers is directly related to the safe and stable operation of the transformer and even the entire power grid. Therefore, it is very important to determine the insulation aging degree of the transformer. Although the aging of transformer insulation is the combined result of many factors, temperature is the most critical factor in measuring the operating life of transformers. The overheating of the transformer is bound to seriously damage the insulation of the internal windings, causing many faults such as short circui...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/12G01R31/1263
Inventor 王路伽周利军郭蕾蔡君懿唐浩龙何健王朋成梅诚徐晗
Owner SOUTHWEST JIAOTONG UNIV
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