Plugging protection ammeter and application method thereof

Abstract

The present invention discloses a plugging protection ammeter and an application method thereof. The ammeter comprises an ammeter body, an ammeter connection piece, an ammeter plug, wiring piles, connection outer pipes, a metal insertion pipe, a protruding groove, connection inner pipes, grooves and a metal casing pipe. The inner walls of the connection outer pipes on the ammeter connection piece are provided with the metal insertion pipe for installation and insertion to firmly connect the metal insertion pipe with the metal casing pipe, the ammeter plug employs grooves at the outer side to perform concave and convex occlusion connection with the grooves on the ammeter connection piece so as to avoid dropping off and facilitate the mounting and dismounting of the ammeter and the ammeter connection piece, the wiring piles are connected with different lines and are communicated with the ammeter body through the connection of the metal insertion pipe and the metal casing pipe so as to reduce the probability of workers' wiring error, the connection inner pipes are installed and inserted into the connection outer pipes to connect the metal insertion pipe with the metal casing so as to ensure the contact area of a conductor and a wiring hole and facilitate flexible mounting and dismounting.

Description

technical field [0001] The invention relates to an electric meter, in particular to a plug-in protection type electric meter and a using method thereof, which belong to the technical field of electric power measurement. Background technique [0002] Energy meters are instruments used to measure the energy consumed by electrical equipment. With the increase of electricity load every year, the number of energy meters increases year by year, which brings great pressure on the installation and rotation of energy meters. [0003] The traditional electric energy meter rotation adopts the manual wiring method. Usually, it is necessary to manually connect the incoming and outgoing wires to the terminals of the electric energy meter one by one. The reason is that there are many incoming and outgoing lines of the three-phase electric energy meter, so the electric energy meter is rotated, the maintenance time is long, and the disassembly and assembly are not flexible and convenient. Th...

AI Technical Summary

Problems solved by technology

[0003] The traditional electric energy meter rotation adopts the manual wiring method. Usually, it is necessary to manually connect the incoming and outgoing wires to the terminals of the electric energy meter one by one. The reason is that there are many incoming and outgoing lines of the three-phase electric energy meter, so the electric energy meter is rotated, the maintenance time is long, and the disassembly and assembly are not flexible and convenient. The traditional electric energy meter wiring method is insufficient, which makes it difficult to ensure the contact area between the conductor and the wiring hole, and the current conduction rate is low. , and the contact point is prone to heat, the rotation and maintenance time is long, the disassembly and assembly are not flexible and convenient, and it is easy to cause measurement errors. The exposed part of the wire is inserted into the terminal hole of the meter.

[0004] Fixing with the end screw, the conductor will be deformed after the screw is tightened, and it is still inevitable that some electrical connecting wires will be exposed, which not only has potential safety hazards, but also provides opportunities for stealing electricity. It is difficult to ensure the contact area between the conductor and the wiring hole, and the current conduction The pass rate is low, and the contact point is prone to heat. During the rotation process of the electric energy meter, it is necessary to check the line terminal numbers one by one. When the current wires of the electric energy meter are reversely connected, the circuit can operate correctly and the transformer circuit is normal. The metering personnel cannot directly judge the wiring error problem, but it will lead to measurement errors. When the electric energy meter is rotated or there is a problem and needs to be repaired, it needs to be removed first. The electric energy meter can be rotated only when the electric energy meter enters and exits the line. Therefore, it takes a long time to install the electric energy meter and rush to repair and replace it.

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