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Multi-channel synchronous corona resistance lifetime testing device for insulating material under electric heating aging environment

An insulating material, multi-channel synchronization technology, which is applied in the direction of testing dielectric strength, etc., can solve the problem that there is no test device for corona resistance life performance of insulating films, and achieves clear and easy-to-save test results, flexible layout, and accurate multi-channel synchronization. The effect of measurement

Inactive Publication Date: 2018-09-07
SICHUAN UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, there is no test device for effectively evaluating the corona resistance life performance of insulating films and capable of multi-channel automatic operation

Method used

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  • Multi-channel synchronous corona resistance lifetime testing device for insulating material under electric heating aging environment
  • Multi-channel synchronous corona resistance lifetime testing device for insulating material under electric heating aging environment
  • Multi-channel synchronous corona resistance lifetime testing device for insulating material under electric heating aging environment

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Embodiment Construction

[0020] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.

[0021] Any feature disclosed in this specification (including any appended claims, abstract), unless otherwise stated, may be replaced by alternative features which are equivalent or serve a similar purpose. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.

[0022] Such as Figure 1 to Figure 2 As shown, in the embodiment of the present invention, the multi-channel synchronous test device for corona resistance life of insulating materials in the electrothermal aging environment includes a high voltage generation module 1 , a short circuit protection module 2 , an electrothermal aging test module 3 and a control module 4 .

[0023] The high-voltage generating module 1 is used to generate high-voltage sinusoidal signals ...

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Abstract

The invention discloses a multi-channel synchronous corona resistance lifetime testing device for an insulating material under an electric heating aging environment. The multi-channel synchronous corona resistance lifetime testing device comprises an electric heating ageing test module, a short-circuit protection module, a high-voltage producing module and a control module. The high-voltage producing module is used for producing a high-voltage sinusoidal signal. The short-circuit protection module is used for dividing the high-voltage sinusoidal signal into multiple channels of high-voltage test signals and conducting short-circuit protection on each channel. The electric heating ageing test module comprises an insulating transparent cabinet and a test sample frame, wherein the insulatingtransparent cabinet is an airtight box body structure, the test sample frame comprises an insulating partition plate, an upper metal electrode, a lower metal electrode, a conductive metal rod and an insulating airtight sleeve, multiple channels of high-voltage test signals are respectively exerted to one insulating test sample, and the insulating test sample is placed between the upper metal electrode and the lower metal electrode. The control module is used for timing and cuts off a current line and stops timing when the current line is short-circuited. The multi-channel synchronous corona resistance lifetime testing device can perform multi-channel synchronous testing, and testing of other lines is not affected after one line is broken down.

Description

technical field [0001] The invention relates to the technical field of corona resistance detection of insulating materials, in particular to a multi-channel synchronous testing device for corona resistance life of insulating materials in an electrothermal aging environment. Background technique [0002] Due to its outstanding advantages in control and energy saving, variable frequency motors have been widely used in wind power generation, ship drives, high-speed railways and other fields. Modern industrial applications put forward higher requirements for the miniaturization, reliability, and power density of variable frequency motors. For this reason, the International Electrotechnical Commission issued technical specifications, which pointed out that when selecting insulation materials, designing insulation systems and ex-factory inspections of motors, , Corresponding tests must be carried out under repeated square wave and sinusoidal voltages to detect its insulation perfo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
CPCG01R31/12
Inventor 王鹏李想赵政嘉雷勇周群王策
Owner SICHUAN UNIV
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