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A transformer online live calibration device

A technology for calibrating devices and transformers, applied in measuring devices, instruments, measuring electrical variables, etc., can solve problems such as the inability to achieve transformer calibration, and achieve the effect of improving the level and ensuring safety

Active Publication Date: 2015-10-14
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this patent only involves the accuracy evaluation of the voltage transformer under test under the condition of electrified operation, and it cannot realize the calibration of the transformer under the electrified state

Method used

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  • A transformer online live calibration device
  • A transformer online live calibration device

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Embodiment Construction

[0025] 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.

[0026] Notes in the figure: 1-current standard device, 2-voltage standard device, 3-switching equipment, 4-damping resistance, 5-secondary data acquisition and sending device of current standard device, 6-secondary data acquisition and transmission device of voltage standard device Sending device, 7-operating console and data processing system, 8-optical fiber insulator, 9-mechanical operation control cabinet, 10-left and right fine-tuning device, 11-lifting platform, 12-moving platform, 13-operating console control cable, 14-data Receiving device, 15-...

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Abstract

The invention provides an online live calibration device for mutual inductors. The online live calibration device comprises a current standard device, a voltage standard device, a current standard device secondary data acquisition and transmission device, an operation desk, a data processing system, a switch device, a damping resistor, an elevating platform, a left and right fine tuning device and a mobile platform. Besides the operation desk and the data processing system, all the other devices are disposed on the mobile platform. The whole device is provided with a flexible mechanical structure, is convenient for accurately connecting into an electric power system. At the same time, since the whole device is under remote control, safety of operators is guaranteed. The online live calibration device for mutual inductors is especially suitable for online live calibration of mutual inductors in key and important substations in the electric power system.

Description

technical field [0001] The invention relates to an on-line live calibration device for a transformer, which is particularly suitable for the on-line live calibration of key and important transformer substations in a power system, and belongs to the field of high-voltage and high-current measurement. Background technique [0002] As an important part of the electric energy metering device, the transformer is a legal measurement for the fair and just trade settlement between the power generation company and the grid company, the grid company and the power supply company, the power supply company and the power user, and the correct calculation and assessment of the internal technical and economic indicators of the power system. appliance. According to the current national verification regulations, the transformers used in the power grid (including voltage transformers and current transformers) must be regularly checked for error characteristics. According to the conventional d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/02
Inventor 姜春阳李鹤胡浩亮王勤周峰李前熊前柱袁建平陈松李明周喻胡宗泉杜百稳
Owner STATE GRID CORP OF CHINA
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