Automated adjustment system for comprehensive multi-parameter electrical measuring instrument and adjustment method

An electric measuring instrument and multi-parameter technology, which is applied in the direction of instruments, measuring devices, and measuring electrical variables, can solve the problems of expensive standard sources, operational errors, and missing calibrations, and achieve the elimination of missing detection points, reduce manpower burden, and operate fast effect

CN102854485AInactive Publication Date: 2013-01-02SHENZHEN ARTEL TECH
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2013-01-02
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an automated adjustment system for a comprehensive multi-parameter electrical measuring instrument and an adjustment method. The system comprises an upper computer and a harmonic power source; a multifunctional standard meter is arranged in the harmonic power source, the harmonic power source is connected with every multi-parameter electrical measuring instrument to be detected, and every multi-parameter electrical measuring instrument to be detected is tested by the harmonic power source through various output testing signals in different states; the upper computer is respectively connected with the harmonic power source and every multi-parameter electrical measuring instrument to be detected and is used for transmitting an electrical measurement value measured by the multifunctional standard meter into every multi-parameter electrical measuring instrument to be detected, and the measured value of every electrical measuring instrument to be detected is adjusted according to the electrical measurement value; and the upper computer is also used for reading the electrical measurement value of the harmonic multifunctional standard meter and the measured value of every multi-parameter electrical measuring instrument to be detected, calculating an error value between the electrical measurement value and the measured value, and generating a detection report. The system has the advantages of high efficiency of debugging and verification and high accuracy of calibration; no artificial error can be caused; and the labor burden of enterprises can be eased.
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Description

Technical field

[0001] The invention relates to the field of electric power instrumentation, in particular to an automatic adjustment system and adjustment method for a comprehensive multi-parameter electric measuring instrument. Background technique

[0002] In the current electric power and petrochemical industries, comprehensive multi-parameter electrical measurement instruments are more and more widely used. The measurement of phase voltage, line voltage, current, zero sequence current, apparent power, active power, and reactive power are integrated in a single instrument. Power, power factor, frequency and many other measurement functions, with more high-end functions such as harmonic analysis, you can also set the wiring mode of the meter, it can be set to three-phase three-wire or three-phase four-wire mode, and it also has remote signaling and remote control. And other functions bring great convenience to users, but it poses great challenges to the calibration and testing...

Examples

Embodiment Construction

[0028] The present invention will be further described below in conjunction with the drawings.

[0029] figure 2 Shows the principle block diagram of the automatic adjustment system of the comprehensive multi-parameter electrical measuring instrument of the present invention, such as figure 2 As shown, the automatic adjustment system of the comprehensive multi-parameter electrical measuring instrument includes an upper computer 10 and a harmonic power source 30.

[0030] Wherein, the harmonic power source 30 has a multi-function standard meter for measuring various electrical measurement values ​​inside, and the harmonic power source 30 is connected to each detected multi-parameter electrical measuring instrument (the first multi-parameter electrical measuring instrument). The instrument 71, the second multi-parameter electrical measuring instrument 72,..., the n-th multi-parameter electrical measuring instrument 7n) are electrically connected, and the harmonic power source 30 use...