Standard meter access-based uninterrupted-power replacement method for replacing electric energy meters

Abstract

The invention provides a standard meter access-based uninterrupted-power replacement method for replacing electric energy meters. A standard meter is accessed to the circuit of an electric energy meter. During the process from the removal of an old electric energy meter to the installation of a new electric energy meter, an electric energy metering circuit is established through switching the short-circuit plates of an electric energy metering device. In this way, the electric energy metering function is realized during the replacement of electric energy meters by means of the standard meter. According to the technical scheme of the invention, the electric energy metering function is realized during the replacement of electric energy meters. In this way, the economic loss caused by the missed metering phenomenon of the electric energy during the current power-outage replacement process of electric energy meters in the prior art can be avoided. According to the method, a three-phase 0.02-level portable multifunctional standard electric energy meter is adopted, so that the metering accuracy can be ensured. At the same time, based on the design of upper blocks, lower blocks and short-circuit plates in the junction box of the electric energy metering device, the electric energy is completely cut off during the mounting and dismounting process of to-be-dismounted electric energy meters and newly mounted electric energy meters. Therefore, electric energy meters are isolated from the charged electric energy metering loop of the standard electric energy meter. As a result, the secure operation is realized.

Description

technical field [0001] The invention relates to a method for replacing an electric energy meter connected with a standard meter without power failure. Background technique [0002] The electric energy meter is an important part of the electric energy metering device, and is often used in the trade settlement of electric quantity. The long-term use of the electric energy meter will cause problems such as aging of internal parts, affect the accuracy of electric energy measurement, and pose a major safety hazard. Therefore, it is necessary to replace the electric energy meter with a new one to take over the measurement. On the one hand, according to DL / T 448-2000 "Technical Management Regulations for Electric Energy Metering Devices", electric energy metering technical institutions will carry out regular rotation of electric energy meters according to the operation files of electric energy meters, the rotation cycle and workload specified in the regulations, etc. On the other ...

AI Technical Summary

Problems solved by technology

[0013] During the existing power outage and meter replacement process, the electric energy meter is in a power-off state, and there is no electric energy measurement circuit

At this time, the transmission and consumption of electric energy still exist, so the electric energy consumed during the meter replacement period cannot be measured

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