Analog field high voltage energy meter calibration system

A technology of high-voltage electric energy and electric energy measurement system, which is used in the measurement of electric variables, measurement devices, instruments, etc.

Inactive Publication Date: 2015-09-23
STATE GRID TIANJIN ELECTRIC POWER +1
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  • Abstract
  • Description
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Problems solved by technology

The high-voltage electric energy meter breaks the traditional high-voltage measurement method, and uses the non-traditional transformer with weak output current and voltage to replace the traditional electromagnetic current and voltage transformer. The verification error is the overall error. Therefore, the existing high-voltage electric energy metering device The verification device and verification method of the low-voltage electric energy meter are no longer applicable to the high-voltage electric energy meter

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  • Analog field high voltage energy meter calibration system

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Embodiment Construction

[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0022] A high-voltage electric energy meter verification system that simulates the scene, including a PC control system, a high-voltage power source and a standard electric energy metering system. The PC control system controls the work of the high-voltage power source by connecting the high-voltage power source. The input end of the electric energy meter and the standard electric energy metering system, the output end of the tested high-voltage electric energy meter is connected to the input end of the standard electric energy metering system, and the output end of the standard electric energy metering system is connected to the PC control system to form a detection system loop.

[0023] The working ...

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Abstract

The invention relates to an analog field high voltage energy meter calibration system. A high voltage power source is used to simulate the actual field operation condition of a high voltage energy meter. An analog field provides a current and voltage value. The calibrated high voltage energy meter produces a calibrated pulse signal. The high voltage energy meter is calibrated as a whole. The overall error of the high voltage energy meter is measured. According to the system, when the high voltage energy meter is calibrated, the high voltage power source and a standard energy metering system are used to measure the overall error of the high voltage energy meter; the accuracy level of the high voltage energy meter can be defined; tracing can be carried out; and the accuracy and the transmissibility of metering can be ensured.

Description

technical field [0001] The invention belongs to the field of electric energy measurement, in particular to a high-voltage electric energy meter verification system for simulating the scene. Background technique [0002] With the development of electronic technology and communication technology, in order to solve the problems of traditional transformers, such as high energy consumption, high material consumption, and unsatisfactory safety, an integrated high-voltage electric energy meter appears, which directly converts high-voltage voltage and current through a sampling circuit For weak voltage and current signals, directly input the electric energy measurement unit. The high-voltage electric energy meter realizes high-voltage electric energy measurement through integrated design. The high-voltage electric energy meter breaks the traditional high-voltage measurement method, and uses the non-traditional transformer with weak output current and voltage to replace the traditio...

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Application Information

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IPC IPC(8): G01R35/04
Inventor 刘洋洋陈彬杨光邹琪李磊
Owner STATE GRID TIANJIN ELECTRIC POWER
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