High-carrying-current type electric energy meter

Abstract

The invention discloses a high-carrying-current type electric energy meter. A plurality of jacks for metal sockets to be embedded are formed in a base of a connecting seat of the high-carrying-current type electric energy meter, each metal sleeve comprises a tube seat and an inserting tube, each tube seat is positioned on the lower half portion of the corresponding metal sleeve, each inserting tube is positioned on the upper half portion of the corresponding metal sleeve and comprises a plurality of metal blades, a plurality of wire through grooves are formed in each inserting tube in parallel along the axial direction of the inserting tube so that a plurality of metal blades which are arrayed at intervals are formed in the peripheral direction of the end surface of the corresponding tube seat, at least one of the wire through grooves is a through wire groove which penetrates through each tube seat and the corresponding inserting tube, and the end surface of each inserting tube is a spherical crown surface; and a wiring through hole for a wiring terminal to be embedded is formed in the center of each metal socket, two threaded holes for wiring bolts to be screwed in penetrate through each wiring through hole and the side surface of the corresponding metal socket, in a rebounding state of the inserting tubes, the diameter ratio of the diameters of the inserting tubes to the diameters of connecting holes is 1.02-1.08:1, and the tube seats of the metal sleeves are inserted in the wiring through holes of the metal sockets. By the high-carrying-current type electric energy meter, temperature rise is greatly reduced, an operator can mount the electric energy meter conveniently, and the electric energy meter is also convenient to dismount.

Description

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

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

Images