Calibration system and method for digital alternating current-direct current tester

A calibration system, AC and DC technology, applied in the direction of instruments, measuring devices, measuring electrical variables, etc., can solve the problems of low efficiency, large manual calibration errors, etc., and achieve the effect of realizing automation and reducing manual operation and calculation errors

Inactive Publication Date: 2009-03-18
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of this, the present invention provides a calibration system and method for a digital AC / DC tester to solve the problems of large errors and low efficiency in manual calibration in the prior art

Method used

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  • Calibration system and method for digital alternating current-direct current tester
  • Calibration system and method for digital alternating current-direct current tester
  • Calibration system and method for digital alternating current-direct current tester

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Method Embodiment 1: A calibration method for a digital AC / DC tester in the working mode of the tester.

[0049] see Figure 4 , is a flow chart of method embodiment 1, including:

[0050] S401: start calibration;

[0051] S402: Search for a test point, if the test point is found, execute S403, otherwise, execute S415;

[0052] S403: Determine whether the test point setting is reasonable, if the setting is reasonable, execute S404, otherwise execute S415;

[0053] S404: Determine whether the test mode and standard are the same as the current one, if so, execute S405, otherwise, execute S415;

[0054] S405: Determine whether the set wiring voltage and current are the same as the current power supply, if so, execute S406, otherwise, execute S407;

[0055] S406: soft power-on (set the phase frequency), stabilize for 8 seconds; then execute S410

[0056] S407: Power down and stabilize for 5 seconds;

[0057] S408: Set the wiring mode, voltage and current gear of the m...

Embodiment 2

[0065] Method embodiment two: a calibration method of a digital AC / DC tester in the working mode of the test device.

[0066] see Figure 5 , is the flow chart of the second method embodiment, including:

[0067] S501: start calibration;

[0068] S502: Find a test point, if the test point is found, execute S503, otherwise, execute S514;

[0069] S503: Determine whether the test point setting is reasonable, if the setting is reasonable, execute S504, otherwise execute S514;

[0070] S504: Determine whether the test mode and standard are the same as the current one, if so, execute S505, otherwise, execute S514;

[0071] S505: Inform the standard measuring equipment of the wiring, voltage and current parameter values ​​to be set;

[0072] S506: Power down and stabilize for 5 seconds;

[0073] S507: Set the wiring mode, voltage and current gear of the device to be calibrated;

[0074] S508: Power on hard (set the wiring voltage, current, phase and frequency), stabilize for 1...

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Abstract

The invention discloses a correction system for digital alternative-direct current tester and a method. The correction system comprises a digital alternative-direct current tester, a standard measurer, a communication switcher and a computer, wherein the standard measurer can measure the digit alternative-direct current tester and read out a first electric parameter group; the communication switcher can obtain a first electric parameter group from the standard measurer, the computer obtains a first electric parameter group from the communication switcher, reads a second electric parameter group from the digital alternative-direct current tester, and compares the first and the second electric parameter groups to calculate the error and obtain the corrected result of the digital alternative-direct current tester. The invention can avoid the problems of the manual correction such as large error and low efficiency.

Description

technical field [0001] The invention relates to the technical field of test and measurement, in particular to a calibration system and method for a digital AC / DC tester. Background technique [0002] A large number of digital AC and DC testers are used in the power system, and the calibration of these testers is the premise to ensure the accurate measurement of these instruments. [0003] At present, manual calibration is mainly used. For example, when calibrating JB202C (AC / DC instrument detection device produced by Zhengzhou Sanhui Electric Co., Ltd.), it is used to connect JB202C and COM3000 (three-phase AC standard instrument produced by German ZERA company) , and then manually control the output of JB202C, and then read the power of JB202C and COM3000 respectively, and finally manually calculate the error, and manually judge the calibration result. Since COM3000 is only an AC standard instrument, to measure DC, the COM3000 must be removed and replaced with a 1281 digit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R35/00
Inventor 赵铎陈卓娅余义宙
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST
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