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Detection and calibration system and method for transformer partial discharge and positioning on-line monitoring components

A technology for transformers and transformer bushings, used in instruments, measuring devices, measuring electrical variables, etc., can solve problems such as single function of the device

Inactive Publication Date: 2016-03-09
CHINA ELECTRIC POWER RES INST +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the function of the device is too single

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  • Detection and calibration system and method for transformer partial discharge and positioning on-line monitoring components
  • Detection and calibration system and method for transformer partial discharge and positioning on-line monitoring components
  • Detection and calibration system and method for transformer partial discharge and positioning on-line monitoring components

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Embodiment Construction

[0031] In order to better understand the present invention, the content of the present invention is further illustrated below in conjunction with the examples, but the content of the present invention is not limited to the following examples. Those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms are also within the scope of the claims listed in this application.

[0032] Explanation of the marks in the attached drawings: figure 1 : 1-220V AC power supply, 2-isolation filter transformer, 3-no partial discharge step-up transformer, 4-discharge protection resistor, 5-voltage divider, 6-coupling capacitor Ck, 7-test product Cx, 8-digital Partial discharge instrument, 9-UHF sensor, 10-oscilloscope, 11-computer.

[0033] figure 2 : 21—transformer bushing 1, 22—transformer bushing 2, 23—UHF sensor oil drain valve installation, 24—UHF sensor OEM installation, 25—electrode model, 26—oil tank shell.

[0034] image 3...

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Abstract

The invention provides a detection and verification system and a detection and verification method of a transformer partial discharge and positioning on-line monitoring assembly. The detection and verification system comprises a power supply, an isolation filtering transformer, a non-partial discharge boosting transformer, a voltage divider, a sample Cx, a digital partial discharge instrument, a ultra high frequency (UHF) sensor and a computer. By the detection and verification system, a transformer UHF on-line monitoring assembly and a partial discharge ultrasonic positioning / UHF positioning on-line monitoring assembly can be detected and verified, and meanwhile, the sensitivity and the positioning error of the on-line monitoring assemblies can be detected and verified. A developed UHF sensor installation tool can realize the detection of various types of UHF sensors, by a developed electrode model, a typical partial discharge fault of a transformer can be simulated, and the detection and the verification of the on-line monitoring intelligent assemblies on the monitoring sensitivity of various typical types of faults are developed.

Description

technical field [0001] The invention belongs to the field of intelligent electrical appliances, and in particular relates to a detection and verification system and method for transformer partial discharge and positioning on-line monitoring components. Background technique [0002] With the rapid growth of electricity consumption in our country, the problem of unbalanced electricity consumption is particularly prominent. The eastern and coastal areas are facing the problem of electricity shortage. The large hydropower in the west and the large coal power base in Shaanxi, Gansu, Ningxia, Meng, Jinyi, and the country are carrying out west-to-east power transmission. , Sanhua power grid interconnection, the development of UHV strong smart grid. The power grid has become the foundation and an important part of the development of an industrialized and informationized society; at the same time, the power grid is also constantly absorbing the achievements of industrialization and i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/00G01R31/12
Inventor 陈江波李辉张曦许晶邱进徐思恩
Owner CHINA ELECTRIC POWER RES INST