Distribution transformer parameter monitoring and winding state evaluation device and evaluation method thereof

A distribution transformer and parameter monitoring technology, which is applied in the direction of transformer testing, measuring devices, circuit devices, etc., can solve the problems of small-capacity distribution transformer monitoring and inability to evaluate the winding state

Pending Publication Date: 2020-06-19
LIAONING UNIVERSITY OF TECHNOLOGY
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  • Description
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Problems solved by technology

[0003] At present, the monitoring objects of distribution transformer parameter monitoring devices are mostly large-capacity transformers in substations, and most of them rely on distribution SCADA systems. Such devices cannot monitor widely distributed and numerous small-capacity distribution transformers. In addition, the current distribution transformer parameter monitoring device can only realize the parameter monitoring and data recording functions, and cannot evaluate the winding state

Method used

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  • Distribution transformer parameter monitoring and winding state evaluation device and evaluation method thereof
  • Distribution transformer parameter monitoring and winding state evaluation device and evaluation method thereof
  • Distribution transformer parameter monitoring and winding state evaluation device and evaluation method thereof

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Embodiment Construction

[0121] The present invention is described in detail in conjunction with the accompanying drawings of the analog quantity acquisition unit.

[0122] like figure 1 As shown, a distribution transformer parameter monitoring and winding state evaluation device, the device includes a real-time operating parameter acquisition device 1 and a PC monitoring platform 4; the real-time operating parameter acquisition device 1 and the PC monitoring platform 4 are wirelessly connected; the real-time operating parameter acquisition device 1 includes a control unit 2, an analog quantity acquisition unit 5 and a power supply unit 3, and the analog quantity acquisition unit 5 includes a primary side voltage acquisition module 6, a primary side current acquisition module 7, a secondary side voltage acquisition module 8 and a secondary side current acquisition module 9. The primary side voltage acquisition module 6, the primary side current acquisition module 7, the secondary side voltage acquisit...

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Abstract

The invention relates to a distribution transformer parameter monitoring and winding state evaluation device and a winding state evaluation method of the device. An operation parameter real-time acquisition device is wirelessly connected with a PC monitoring platform; the operation parameter real-time acquisition device comprises a control unit, an analog quantity acquisition unit and a power supply unit, the analog quantity acquisition unit is connected with the control unit, the analog quantity acquisition unit is connected with the power supply unit, and a PC is connected with the operationparameter real-time acquisition device. According to the device and the method, the winding state can be evaluated, the self-diagnosis and correction functions are achieved, whether an AD7656 chip, avoltage converter and a current converter break down or not and whether a transformer, a current transformer and a voltage transformer break down or not can be automatically diagnosed, and in addition, measurement errors caused by device performance attenuation can be automatically corrected.

Description

technical field [0001] The invention relates to the field of electrical engineering, in particular to a distribution transformer parameter monitoring and winding state evaluation device and an evaluation method thereof. Background technique [0002] With the rapid development of the smart grid, it puts forward higher requirements for the reliability and power supply quality of the distribution network. As an important component of the distribution network, the distribution transformer plays an important role in the transformation and transmission of electric energy. Therefore, the safe and reliable operation of the distribution transformer is of great significance to the distribution network. Therefore, it is very necessary to monitor the operation status of distribution transformers and understand the winding status (deformation) of distribution transformers in a timely and comprehensive manner, which is very necessary for formulating maintenance strategies for distribution...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J13/00G08C17/02G01R19/25G01R31/72G01R31/62G01R31/52G01R27/02G01R23/02
CPCG01R19/25G01R23/02G01R27/02G08C17/02H02J13/00Y02B90/20Y04S10/40Y04S40/126
Inventor 郭栋黄磊李众李洪博
Owner LIAONING UNIVERSITY OF TECHNOLOGY
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