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Simulation field electric energy metering test device and method

A technology of electric energy measurement and test device, applied in the direction of measurement device, measurement of electrical variables, instruments, etc., can solve the problem of lack of dynamic quantification, and achieve the effect of reducing links

Inactive Publication Date: 2012-02-22
HEILONGJIANG ELECTRIC POWER RES INST +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The comprehensive error of the electric energy metering device already has quantified technical means, but due to reasons such as on-site safety and guaranteed power supply of the line, it is not yet possible to dynamically quantify it.

Method used

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  • Simulation field electric energy metering test device and method
  • Simulation field electric energy metering test device and method
  • Simulation field electric energy metering test device and method

Examples

Experimental program
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Embodiment Construction

[0012] Below in conjunction with accompanying drawing, illustrate the concrete operation method of the present invention:

[0013] 1. Actual load operation steps:

[0014] (1) According to the need, connect the required test load to the line;

[0015] (2) Determine the selected measurement method according to the selected measurement method. When the three-phase four-wire measurement method is selected, it is recommended to use the line measured by the meter 2 first. When the three-phase three-wire measurement is selected, the current connection of the meter 2 Adjustments should be made, and meters 2 and 3 should be replaced with phenotypes;

[0016] (3) Confirm the wiring method according to the selected metering method (check that the line current transformer is not open and the voltage transformer is not short circuit);

[0017] (4) Select the load switch as the real load;

[0018] (5) Turn on the computer and set the corresponding wiring mode in the software;

[0019] ...

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Abstract

A device and method for simulating on-site electric energy metering test. The simulated on-site electric energy metering test device is a new type of simulated device designed according to the relevant national electric energy meter field standards and the requirements of DL / T448-2000. It is divided into two parts in principle: real load and virtual load. It is composed of a single busbar and double circuits, which can simulate various actual wiring on site, which not only ensures the accuracy and reliability of electric energy measurement, but also avoids hidden dangers to the safe operation of the power system. The virtual load part is composed of a three-phase program-controlled test power supply and a voltage and current connection switching box. It has the characteristics of good stability, strong functions, and convenient use. The actual phenomena such as miswiring of three-phase four-wire active and reactive energy meters are explained to make the teaching closer to actual work.

Description

technical field [0001] The invention relates to a test device and method for simulating on-site electric energy measurement. Background technique [0002] Electric energy measurement has become an important link in the commercial operation of the power system because it involves key issues such as energy trade settlement. The accuracy, rationality and reliability of electric energy measurement are directly related to the direct interests of power generation, power supply and power consumption enterprises. In recent years, with the gradual emergence of some new electricity loads, some new problems in electric energy measurement have been brought about, such as: the electric railway traction substation power supply line supplies power to the three-phase system B and C single-phase, resulting in the line The electric energy added by the electric energy meters on both sides is not uniform. Another example: Some primary transformers have three input reactors for the main transfo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R35/04
Inventor 孙福军兰公煜范志刚陈岳姜德胜
Owner HEILONGJIANG ELECTRIC POWER RES INST
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