Portable partial discharge detector for insulating switch

An insulation switch and partial discharge technology, applied in circuit breaker testing, dielectric strength testing and other directions, can solve the problems of being susceptible to external interference, bulky, inconvenient, etc.

Inactive Publication Date: 2011-06-15
上海莫克电子技术有限公司
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AI Technical Summary

Problems solved by technology

[0002] At present, gas partial discharge is often evaluated by detecting ultra-high frequency electromagnetic waves with an external antenna. This method has low sensitivity and is easily affected by external interference. It is only used for qualitative detection of partial discharge.
The other type is the internal sensor, but it has not been optimized for structural characteristics, so it has certain limitations
At the same time, because the insulating switch has the advantages of small footprint and high operating reliability, but the result of being fully enclosed makes it difficult to grasp the partial discharge that occurs inside, so the on-line monitoring of partial discharge is particularly important
[0003] At the same time, because many partial discharge detectors for online detection can only be fixed in a certain position, or they are large in size and heavy in weight, which is not conducive to on-site mobile use, and there are many inconveniences in actual operation.

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Embodiment Construction

[0017] Such as figure 1 Shown is a schematic structural view of the portable insulation switch partial discharge detector of the present invention. The invention provides a portable insulating switch partial discharge detector, which includes an insulating switch body, an ultra-high frequency UHF sensor attached to the outside of the gas portable, an external probe, a communication interface, a noise identification unit, a signal processing unit and a setting unit. characterized by also including

[0018] Data display unit, real-time display of measurement data, including real-time peak value display, real-time average data display, real-time phase data display;

[0019] Storage unit, including historical data management, fault data management;

[0020] Search unit, including historical data archive search, fault archive search and two-dimensional or three-dimensional graph search.

[0021] Further, the signal processing unit of the portable insulation switch partial discha...

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Abstract

The invention provides a portable partial discharge detector for an insulating switch. The detector comprises an insulating switch body, an external ultrahigh frequency (UHF) sensor, an external probe, a communication interface, a noise identification unit, a signal processing unit and a setting unit, and application units such as a data display unit, a storage unit, a search unit and the like, can display measured data in real time, and facilitates data storage and retrieval. The detector has safe and reliable performance and high applicability, and also has the characteristics that: the detector can be moved on site, has light weight, and is more convenient to use.

Description

technical field [0001] The invention is a portable insulating switch partial discharge detector, which belongs to the detection instrument in the electric power industry. Background technique [0002] At present, gas partial discharge is often evaluated by detecting ultra-high frequency electromagnetic waves with an external antenna. This method has low sensitivity and is easily affected by external interference, so it is only used for qualitative detection of partial discharge. The other type is the internal sensor, but it has not been optimized for structural characteristics, so it has certain limitations. At the same time, because the insulating switch has the advantages of small footprint and high operating reliability, but the result of being fully enclosed makes it difficult to grasp the partial discharge that occurs inside, so the on-line monitoring of partial discharge is particularly important. [0003] At the same time, because many partial discharge detectors for...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12G01R31/327
Inventor 杨文举王志兰
Owner 上海莫克电子技术有限公司
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