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Online error verification device and test method for electronic electric energy meter rapid transient pulse train

A technology of transient pulses and verification devices, applied to measuring devices, measuring electrical variables, instruments, etc., can solve problems such as unscientific measurement methods and achieve the effect of good protection measures

Active Publication Date: 2014-07-16
GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0026] However, there is an unscientific measurement method in this test method

Method used

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  • Online error verification device and test method for electronic electric energy meter rapid transient pulse train
  • Online error verification device and test method for electronic electric energy meter rapid transient pulse train

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Embodiment Construction

[0050] In order to solve the problem that the current value and power factor are difficult to meet the standard requirements in the case of real load, only a limited error measurement can be performed on the active energy meter, and the reactive energy output signal cannot be simulated, so as to measure the error of the reactive energy meter. The invention provides an online error verification device for fast transient pulse groups of electronic electric energy meters, and proposes an effective and feasible method for testing fast transient pulse groups of electronic electric energy meters by using the online error verification device. The online error verification device adds a standard table to the program-controlled power supply device to provide a standard electric energy comparison value for measuring the error of the EUT; improves the anti-interference ability of the program-controlled power supply device, performs filtering processing on the current output end, and perfor...

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Abstract

The present invention provides an online error verification device for an electronic electric energy meter rapid transient pulse train, and a method utilizing the device to test. Before the test, a user judges whether a connecting piece needs to be arranged between a voltage circuit and a current circuit according the wiring mode of the to-be-tested electronic electric energy meter; a rapid transient pulse train generator outputs a rapid transient pulse train signal to a coupling / decoupling network; the coupling / decoupling network sends a preset interference signal to the to-be-tested electronic electric energy meter, so as to carry out a rapid transient pulse train test on the to-be-tested electronic electric energy meter; real-time error accuracy measurement data for the to-be-tested electronic electric energy meter by an error calculator is copied; and according to the real-time error accuracy measurement data for the to-be-tested electronic electric energy meter, the user judges whether the rapid transient pulse train test for the to-be-tested electronic electric energy meter is qualified. The present invention can meet the requirements for the accuracy of a real-time testing instrument within limits of corresponding standard specifications during the test.

Description

technical field [0001] The invention relates to an on-line error checking device for a fast transient pulse group of an electronic electric energy meter and a method for testing the fast transient pulse group by using the detection device. Background technique [0002] Fast transient burst test is one of the tests of electromagnetic compatibility (hereinafter referred to as EMC) of electronic watt-hour meters. When opening, due to the insulation breakdown of the switch contact gap or contact bounce, etc., the ability to generate transient disturbances in the form of pulse trains at the disconnection point. [0003] According to GB / T17215.211-2006 "General Requirements, Tests and Test Conditions for Alternating Current Measuring Equipment Part 11: Measuring Equipment", the fast transient burst immunity test should meet the following test conditions: [0004] The fast transient burst test should be carried out in accordance with GB / T17626.4 under the following conditions: ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
Inventor 张彤刘慧敏罗旭东钟蔚陈健华戴伟何建新赖静华宋智欣刘妙花袁力遥胡志明郭斌
Owner GUANGZHOU POWER SUPPLY BUREAU GUANGDONG POWER GRID CO LTD
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