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Method and system for checking performance of frequency response method transformer winding deformation online monitoring sensor

A technology for detecting sensors and sensors, which is applied to parts, instruments, and measuring devices of electrical measuring instruments, and can solve problems such as meeting application requirements, being unable to guarantee sensor performance parameters, and having no sensor performance inspection.

Pending Publication Date: 2020-09-22
CHINA ELECTRIC POWER RES INST +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The structure and operating characteristics of the sensor are relatively special. Currently, there is no method and system for performance testing of the sensor, and it is impossible to guarantee that the performance parameters of the sensor meet the application requirements.

Method used

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  • Method and system for checking performance of frequency response method transformer winding deformation online monitoring sensor
  • Method and system for checking performance of frequency response method transformer winding deformation online monitoring sensor
  • Method and system for checking performance of frequency response method transformer winding deformation online monitoring sensor

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Embodiment Construction

[0048] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0049] This application provides a coaxial matching fixture for detecting the deformation of the transformer winding by the frequency response method and monitoring the performance of the on-line sensor. Its structure is as follows figure 1 shown. A coaxial mating fixture consisting of a support fixture and a uniform transmission line.

[0050] The support fixture includes an upper cover plate, a lower support plate, and left and right support plates for supporting the measured sensor and a uniform transmission line...

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Abstract

The invention discloses a coaxial matching clamp for detecting the performance of a frequency response method transformer winding deformation on-line monitoring sensor, and the clamp consists of a supporting fixed part and a uniform transmission line, and the supporting fixed part comprises an upper cover plate, a lower supporting plate, a left supporting plate and a right supporting plate, and isused for supporting a detected sensor and the uniform transmission line; the lower supporting plate is provided with an insulating neck, and a tested sensor is fixed on the insulating neck and located between the left supporting plate and the right supporting plate. The uniform transmission line penetrates through the centers of the left support plate, the right support plate and the measured sensor, and is connected with the left support plate and the right support plate through conical transition sections; two ends of the uniform transmission line are respectively provided with a signal connection terminal. Based on the coaxial matching clamp, the performance of the sensor is detected, the influence of external uncertain factors on the detection result can be avoided, and the detectionefficiency is improved. The performance parameters of the sensor are ensured to meet application requirements.

Description

technical field [0001] The application relates to the field of state sensing of power transmission and transformation equipment, in particular to a coaxial matching fixture for detecting the deformation of transformer windings by the frequency response method for online monitoring of sensor performance, and to a sensor performance detection method and system. Background technique [0002] Power transformers are the key core equipment of the power system. As of the end of 2015, the state grid system has more than 39,000 110kV and above transformers in operation. However, in recent years, transformer winding deformation faults have occurred frequently, ranking first among transformer faults. From 2006 to 2015, 220kV and above transformer damage faults caused by winding deformation in the State Grid system reached 81 times, accounting for 33.8% of all transformer faults . Frequent deformation faults of transformer windings have led to great concerns about equipment reliability...

Claims

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Application Information

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IPC IPC(8): G01R35/00G01R1/04G01B21/32
CPCG01B21/042G01R1/0408G01R35/00
Inventor 常文治毕建刚高克利杜非袁帅杨圆丁国成杨海涛周秀
Owner CHINA ELECTRIC POWER RES INST
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