Novel alternating-current magnetic field influence testing device

Abstract

The invention provides a novel alternating-current magnetic field influence testing device. The device is composed of a main control unit, a gauss meter, a standard electric energy meter, a three-phase power source, a constant flow source, a Helmholtz coil unit, an intelligent mechanical unit, a man-machine interaction unit, a safety protection unit, a power source unit and a communication unit. According to the device, combined control of all the units is achieved, collection and processing of feedback data and signals are achieved, and generation of a regional magnetic field is achieved; meanwhile, meter calibration, automatic coil rotating, real-time magnetic field monitoring, event recording and intelligent control are achieved, the frequency and source of the three-phase power source for meter calibration and the frequency and source of the constant flow source generated by the magnetic field are identical, and the requirements of the national standard and the standard of the State Grid Corporation of China for an intelligent ammeter which is used for external alternating-current magnetic field influence testing are met.

Description

technical field [0001] The invention relates to a novel AC magnetic field influence test device. Background technique [0002] Through market research and communication with users, we found that the magnetic field equipment on the market is far behind and cannot meet the development needs of smart energy meters. With the gradual improvement of national standards and the promulgation of the standards of the State Grid Corporation of China, we found that the original equipment had the following disadvantages: 1. The magnetic field coils were not standardized enough to successfully generate a magnetic field area that meets the national standards; 2. The platform was built with a wooden frame The structure is not stable and beautiful; 3. It does not have the function of automatic adjustment of the angle between the magnetic field and the electric energy meter. Even if a few devices with this function are still in the manual adjustment stage, the operation is complicated, impreci...

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Problems solved by technology

[0002]Through market research and communication with users, we found that the magnetic field equipment on the market is far behind and cannot meet the development needs of smart energy meters

With the gradual improvement of national standards and the promulgation of the standards of the State Grid Corporation of China, we found that the original equipment had the following disadvantages: 1. The magnetic field coils were not standardized enough to successfully generate a magnetic field area that meets the national standards; 2. The platform was built with a wooden frame The structure is not stable and beautiful; 3. It does not have the function of automatic adjustment of the angle between the magnetic field and the electric energy meter. Even if a few devices with this function are still in the manual adjustment stage, the operation is complicated, imprecise and less safe. ;4. The equipment cannot communicate, and cannot realize the intelligent control power supply and other action requirements; 5. The same frequency and the same source do not meet the standard requirements, and an external meter calibration station is required

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