High voltage electric energy meter with metering unit capable of being charged to replace

Abstract

The invention is applicable to the technical field of electric energy meters, and provides a high voltage electric energy meter with metering unit capable of being charged to replace. The high voltage electric energy meter with metering unit comprises a combined mutual inductor fixedly installed on a rack, wherein the A phase side of the combined mutual inductor is provided with an A phase connector, and the C phase side of the combined mutual inductor is provided with a C phase connector, and the output terminals of the combined mutual inductor are respectively led out to the A phase connector and the C phase connector; the high voltage electric energy meter also comprises an A phase metering unit inserted into the A phase connector and a C phase metering unit inserted into the C phase connector, when the A and C phase metering unit are inserted into the corresponding phase connectors, terminals on the metering units are correspondingly contacted with the output terminals of the combined mutual inductor, for receiving current and voltage output by the combined mutual inductor. The metering unit in the high voltage electric energy meter provided by the invention can be charged to replace, thus being beneficial to field inspection, comparison and replacement of maintainers and shortening field inspecting time.

Description

technical field [0001] The invention belongs to the technical field of electric energy meters, in particular to a high-voltage electric energy meter whose metering unit can be replaced with electricity. Background technique [0002] Although the existing distribution network direct-connected high-voltage electric energy meter has the advantages of small size, light weight, saving metal materials, being able to check the overall error, and effectively avoiding electricity theft, there are still some problems, mainly that it is difficult to carry out on-site inspection and live electricity. replace. [0003] According to the national and industry standards for electric energy metering, the electric energy metering device (electric energy meter) for billing should be inspected regularly according to the capacity of the load to prove that the error of the electric energy meter is within the specified range. In the past, the high-voltage electric energy metering device composed ...

AI Technical Summary

Problems solved by technology

[0005] In view of the above problems, the purpose of the present invention is to provide a high-voltage electric energy meter whose metering unit can be replaced with electricity, aiming to solve the technical problem that the existing high-voltage electric energy meter can only be inspected and replaced in a whole when the power is turned off. The high-voltage electric energy meter can be replaced with electricity Metering unit, easy maintenance, suitable for 3-35kV rural and urban distribution network

Images