Device for 1600 A electric energy meter detection based on parallel CTs

A technology of electric energy meter and parallel connection, which is applied in the field of electrical measurement, and can solve the problems of increasing the detection area, potential safety hazards, waste of resources, etc.

Inactive Publication Date: 2019-09-24
周晓辉
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  • Description
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Problems solved by technology

When testing the electric energy meter, due to the needs of different meter positions and different verification devices, the required current value is different. In the current supply of conventional electric energy detection, the large current output is likely to have potential safety hazards. However, during the detection process, it is often necessary L

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  • Device for 1600 A electric energy meter detection based on parallel CTs

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Embodiment Construction

[0015] Preferred embodiments of the present invention will be described below in conjunction with the accompanying drawings. It should be understood that the embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0016] Such as figure 1 As shown, a device for realizing 1600A electric energy meter detection based on parallel CT includes a computer 15, a voltage source 1, a current source 2, a booster 5, a first converter 3, a second converter 4, and a standard meter 6 , the error calculation unit 7, the electric energy meter under test, the first transformer 11 connected in parallel, the second transformer 12, the third transformer 13 and the fourth transformer 14, the electric energy meter under test includes the first calibrated transformer connected in parallel Table 8, the second calibrated meter 9 and the third calibrated meter 10, wherein the computer 15 controls the output of the vo...

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Abstract

The invention discloses a device for 1600 A electric energy meter detection based on parallel CTs. The device includes a computer, a voltage source, a current source, a booster, a first converter, a second converter, a standard meter, an error calculation unit, a detected electric energy meter and a first transformer, a second transformer, a third transformer and a fourth transformer which are connected in parallel. The detected electric energy meter includes a first calibrated meter, a second calibrated meter and a third calibrated meter which are connected in parallel. The device of the invention adopts a mode of parallel CTs, that is, the first transformer, the second transformer, the third transformer and the fourth transformer are connected in parallel, to increase output current without increasing input current. The maximum output current of the device is 1600 A, and the device can realize verification requirements of multiple different types and different meters.

Description

technical field [0001] The invention relates to the technical field of electrical measurement, and more particularly relates to a device for realizing detection of a 1600A electric energy meter based on a parallel CT. Background technique [0002] With the rapid construction of the State Grid Corporation's electricity information collection system, the promotion and application of smart energy meters is also accelerating. Therefore, batches of smart energy are installed on site every year, and the number of energy meters is increasing day by day. It is getting heavier and heavier, and the verification of electric energy meters is also a mandatory item required by the State Grid Corporation of China. When testing the electric energy meter, due to the needs of different meter positions and different verification devices, the required current value is different. In the current supply of conventional electric energy detection, the large current output is likely to have potential...

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Application Information

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IPC IPC(8): G01R35/04
CPCG01R35/04
Inventor 周晓辉
Owner 周晓辉
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