Gage and source integrated device for anti-interference digital high-voltage gage calibration

A high-voltage meter and digital technology, which is applied in the field of meter-source integration devices for anti-interference digital high-voltage meter calibration, can solve the problems of error data out of tolerance, transformer data out of tolerance, etc., to ensure error accuracy, reduce electromagnetic interference, Error-consistent effect

CN104297712AActive Publication Date: 2015-01-21STATE GRID CORP OF CHINA +3
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2015-01-21

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Abstract

The invention discloses a gage and source integrated device for anti-interference digital high-voltage gage calibration. The device is characterized by comprising a shell, a voltage regulator, a voltage booster and an anti-electromagnetic interference device located between the voltage regulator and the voltage booster, wherein the voltage regulator, the voltage booster and the anti-electromagnetic interference device are arranged in the shell; a high-voltage terminal is arranged on the top of the shell; the anti-electromagnetic interference device comprises an electric shielding device and a magnetic shielding device. The device has the advantages that a boosting power source and the voltage regulator are integrated, primary leads are connected inside, primary ground wires are connected inside, the gage and source integrated device is formed, the electromagnetic shielding means is adopted, the voltage regulator in the integrated device is shielded, and the electromagnetic interference on the voltage regulator from the boosting power source is reduced. A high permeability magnetic material is added between the booster and the voltage regulator to serve as a magnetic shielding device, magnetic field interference does not exist in the rated capacity range of the booster, and the errors of standard voltage transformers are consistent.
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Description

technical field

[0001] The invention relates to a meter source integrated device for calibrating an anti-interference digital high voltage meter, which belongs to the technical field of voltage measurement. Background technique

[0002] The meter source integrated device for digital high voltage meter calibration is to combine the boost power supply and standard voltage transformer into one, which reduces the number of equipment and wiring during use, and is convenient to use. At present, the error calibration of digital high voltage meters of 50kV and below basically adopts the integrated meter source device for digital high voltage meter calibration, so the amount of meter source integrated device for digital high voltage meter calibration is very large.

[0003] However, at present, there are some problems with the integrated meter source device for digital high pressure meter calibration. From the verification data of the meter source integrated device used for digital h...

Examples

Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0021] At present, there are some problems with the integrated meter source device for digital high pressure meter calibration. According to the verification data of the meter source integrated device for digital high voltage meter calibration in our laboratory, it is manifested in the following two situations: one is used as a standard The digital high-voltage meter calibration uses the boosted power supply of the meter-source integrated device as the boosted power supply of the inspection system. It is often encountered that the error data of the digital high-voltage meter under test is out of tolerance, but if the laboratory’s own booster is used instead Second, use the transformer of the met...