Electric energy meter structure based on scheme of compatibility of ANSI standard round meter with single-phase three-phase relay

Abstract

The invention relates to an electric energy meter structure based on a scheme of compatibility of an ANSI standard round meter with a single-phase three-phase relay. The electric energy meter structure comprises a pedestal; an inner cover is arranged on the pedestal; and an outer cover is arranged outside the inner cover. The electric energy meter structure is characterized in that a first circuitboard and a second circuit board are arranged inside a cavity formed by the inner cover and the pedestal; a support structure is arranged on the pedestal; and the first circuit board and the second circuit board that are arranged up and down at an interval are fixedly connected to the support structure. Besides, a relay and transformer module assembly is arranged on the pedestal and is provided with and is connected with a leading sheet; and the leading sheet stretches out of the pedestal. Compared with the prior, the electric energy meter structure has the following advantages: the structureis simple and reliable; the structure is manufactured conveniently with low costs; compatibility of the meter type with a relay and manganin is realized; the assembling becomes simple; the cost is low; and the enterprise is able to carry out production and goods preparation conveniently.

Description

technical field [0001] The invention relates to the field of electric energy meter structures, in particular to an electric energy meter structure of an ANSI standard round meter compatible with a single-phase three-phase relay scheme. Background technique [0002] An electric energy meter is an instrument used to measure electric energy, also known as an electric meter, a fire meter, or a kilowatt-hour meter, and refers to an instrument for measuring various electrical quantities. [0003] ANSI refers to the American National Standards Institute, which was founded in 1918. At that time, many enterprises and professional technical groups in the United States had already started standardization work, but there were many contradictions and problems due to lack of coordination among them. In order to further improve efficiency, hundreds of scientific and technological societies, associations and groups all believed that It is necessary to set up a special standardization organ...

AI Technical Summary

Problems solved by technology

[0004] Under the existing technology, the ANSI round meter manganese copper and the relay scheme cannot be considered in one form, or the single-phase and three-phase round meters cannot be combined in one form. The assembly of the electric energy meter cover and the bottom case is usually fixed by screws. This method of assembly is relatively cumbersome, and the company needs to make two kinds of molds for the casing, which is costly and inconvenient for production and stocking

[0005] At present, due to the large space occupied by relays and transformers, the surface space of ordinary manganese-copper solutions is limited and cannot be compatible. Due to the size limit of ANSI standard, the diameter of the round meter cannot be increased. We can only consider how to place relays in the existing space. Transformers and other devices, therefore, a set of structural parts in the prior art cannot be compatible with the two schemes of relay and manganese copper

Images