Conjunction box without power loss during replacement

Abstract

The invention relates to a conjunction box without power loss during replacement, and belongs to high-supply high-metering and high-supply low-metering electric energy metering devices. Electricity is metered normally when the metering device as a collection terminal and an electric energy meter is replaced, and the conjunction box is prevented from power loss when a secondary loop is powered off transiently. The conjunction box is characterized in that a voltage loop connecting part is provided, four holes are formed in a T-shaped copper tube at the voltage wire inlet end at the bottom of the conjunction box, each of two linear copper tubes is provided with three holes at the wire outlet end in the upper portion of the conjunction box, the wire outlet end is connected with the T-shaped copper tube at the wire inlet end by cooperating two separate loops with two connection sheets respectively, and power supply of one voltage loop is not influenced when the connection sheet, cooperating with the other voltage loop, is disconnected. The conjunction box provided by the invention can be used to ensure that the electricity is metered normally in the wiring process of instruments during onsite examination.

Description

technical field [0001] The present invention relates to a high-supply meter and a high-supply low meter electric energy metering device, specifically, it can realize the normal metering of electricity during the replacement process of the metering device (including the collection terminal and the electric energy meter) One that causes a loss of power replaces a junction box that does not lose power. Background technique [0002] As a mandatory verification metering device, the electric energy meter is the most critical to ensure the accuracy of its measurement. According to the measurement regulations, regular on-site calibration, supervisory sampling inspection, and periodic rotation must be carried out on the electric energy metering device. The metering junction box is connected to the non-directly connected metering device It is widely used in the field, and it can be used to connect the instrument or instrument to the secondary circuit in operation, and complete the on-...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the existing high-supply-high meter and high-supply-low meter wiring forms of metering devices, the present invention proposes a connection that can not only ensure personal safety and normal electricity consumption of customers, but also realize on-site inspection of the metering device, commissioning and replacement without power loss form, and propose a structure diagram of a new metering junction box matching this wiring form

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