Oil paper insulation electric heating combined aging sealing system

A technology of sealing system and oil-paper insulation, applied in the direction of testing dielectric strength, etc., can solve the problems of product dissipation, inconsistent operation status of transformer sealing, etc., and achieve the effect of ensuring safety

Inactive Publication Date: 2015-11-11
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the aging system in the laboratory mainly adopts the single stress exposure aging method, which causes the products generated during the aging process to dissipate, which is inconsistent with the sealed operation state of the transformer in actual operation.

Method used

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  • Oil paper insulation electric heating combined aging sealing system

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Embodiment Construction

[0025] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0026] like figure 1 As shown, the oil-paper-insulated electric-heating combined aging sealing system of the present invention includes an electrical aging sealing system 1 , a thermal aging sealing system 21 , an oil storage tank 2 and a nitrogen cylinder 3 .

[0027] Wherein the thermal aging sealing system 21 comprises an openable sealed cavity, the side wall of the sealed cavity is provided with a thermal aging system pressure gauge 17 and a temperature controller 18;

[0028] The electrical aging sealing system 1 is arranged in the sealing cavity of the heat aging sealing system 21, comprising a cavity with an upward opening, the top of the cavity is sealed by an epoxy sealing plate 14, and the gap between the epoxy sealing plate 14 and the top of the cavity is A sealing ring 24 for sealing is provided, and an oil filling port 4 and an air filling port ...

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Abstract

The invention discloses an oil paper insulation electric heating combined aging sealing system, is used for a strict oil paper insulation electric heating combined aging experiment, and includes an electrical aging sealing system, a thermal aging sealing system, an oil storage tank and a nitrogen gas cylinder. The thermal aging sealing system includes a sealing cavity capable of being opened, and a thermal aging system pressure gauge and a temperature control meter are arranged on a side wall of the sealing cavity; and the electrical aging sealing system is arranged in the sealing cavity of the thermal aging sealing system, and includes a cavity with an upward opening, the top of the cavity is sealed through an epoxy sealing plate, an oil filling port and an inflation inlet are arranged on the epoxy sealing plate, an electrical aging system pressure gauge and a vacuum extraction opening are arranged on a cavity wall of the cavity, the cavity is internally provided with an electrical aging electrode used for an experiment, and a high voltage end and a grounding end of the electrical aging electrode are led out through the epoxy sealing plate; and the oil storage tank and the nitrogen gas cylinder are connected to the oil filling port and the inflation inlet respectively through high temperature pipes.

Description

Technical field: [0001] The invention relates to an oil-paper insulation electric heating combined aging sealing system, which is used for strict oil-paper insulation electric heating combined aging experiments. Background technique: [0002] In the actual operation of high-voltage power equipment, the oil-paper insulation system will inevitably be subjected to the combined effects of various combined stresses, and the common combined stress is the electric-heat combined stress. During long-term operation, the combined stress of electric heating leads to the gradual aging of the oil-paper insulation system, resulting in failure of power equipment. Therefore, it is of great significance to study the aging characteristics of electric heating combined with the safe operation of oil-paper insulated power equipment. [0003] At present, the aging system in the laboratory mainly adopts the single stress exposure aging method, which causes the products generated during the aging p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 张冠军魏艳慧有晓宇王彦博赵思翔穆海宝
Owner XI AN JIAOTONG UNIV
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