High reliability electric energy metering device

Abstract

The invention discloses a high-reliability electric energy metering device. The high-reliability electric energy metering device comprises an electric energy meter, a connecting seat, a plurality of metal sleeves and a metal socket, wherein the bottom of the electric energy meter is provided with a plurality of connecting holes; the metal sleeves comprise tube seats on the lower half parts and plug tubes consisting of a plurality of metal flaps and on the upper half parts; the plug tubes are provided with a plurality of wire grooves in parallel along the axial direction so as to form a plurality of metal flaps, which are spaced away from one another, in the circumferential directions of the end faces of the tube seats; at least one of the wire grooves is a penetrating wire groove which penetrates the tube seats and the plug tubes; the end faces of the plug tubes are spherical crown faces; a connecting through hole for embedding the connecting terminal is formed in the center of the metal socket; the plug tubes of the metal sleeves are inserted into the connecting holes of the electric energy meter; the proportion of the diameter of the plug tubes to the diameter of the connecting holes is 1.02-1.08:1. According to the device, the temperature rise is greatly reduced, the stability and the reliability of the electric energy meter are improved, the bearing current is improved, the safety is guaranteed, and the universality and the life cycle are also improved.

Description

technical field [0001] The invention relates to a high-reliability electric energy metering device, which belongs to the technical field of electric power metering. Background technique [0002] In the prior art, most of the electric energy meters adopt the wiring mode, and it is usually necessary to manually connect the incoming and outgoing lines to the terminals of the electric energy meter one by one. This method has the following disadvantages: (1) The temperature at the terminal connection rises, and there are problems of poor stability and reliability; (2) The terminal is difficult to withstand large currents, which limits its application range; (3) Even if the electric energy The meter is protected by a joint junction box, a terminal box and a seal, but it is still inevitable that some electrical connection lines are exposed, which not only poses a safety hazard, but also provides opportunities for electricity theft; (4) It is very inconvenient to install and install...

AI Technical Summary

Problems solved by technology

This method has the following disadvantages: (1) The temperature at the terminal connection rises, and there are problems of poor stability and reliability; (2) The terminal is difficult to withstand large currents, which limits its application range; (3) Even if the electric energy The meter is protected by a joint junction box, a terminal box and a seal, but it is still inevitable that some electrical connection lines are exposed, which not only poses a safety hazard, but also provides opportunities for electricity theft; (4) It is very inconvenient to install and install the electric energy meter on site. Checking the line connections one by one not only requires huge labor, but also easily leads to wrong wiring; (5) When a problem occurs and needs to be repaired, it is necessary to remove the incoming and outgoing lines before replacing the electric energy meter, thus causing the installation of electric energy meters. And the repair and replacement time is longer

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