Distributed online monitoring system and method for electric energy metering device

Abstract

The invention relates to a distributed online monitoring system and method for an electric energy metering device. The distributed online monitoring system for the electric energy metering device at least comprises a monitoring subsystem (4) for the electric energy metering device in a transformer substation, a customer electric energy meter centralized reading motoring subsystem (9), a monitoring unit (10) for the electric energy metering device in a metering point and a monitoring center (7) for the electric energy metering device in a power supply company. Data abnormality and fault early-warning, error alarming and inspection and verification request judgment are performed through an on-site monitoring device; relevant power grid event information is acquired through a master monitoring station (6) for the electric energy metering device in the transformer substation and the monitoring center (7) for the electric energy metering device in the power supply company to be used for assisting in decision making; finally, the decision is made through business personnel. The traditional regular inspection and verification mode is broken, and the inspection, verification or maintenance efficiency is high. The communication burden on a monitoring network is reduced, the requirements for a communication environment are lowered, data amount of the master monitoring station (6) for the electric energy metering device in the transformer substation and the monitoring center (7) for the electric energy metering device in the power supply company is reduced, and the operation efficiency is higher.

Description

1. Technical field [0001] The invention relates to a monitoring system of an electric energy metering device and a method thereof, belonging to the technical field of electric energy metering. 2. Background technology [0002] The electric energy metering device mainly includes a potential transformer (PT), a current transformer (CT), a secondary circuit cable and an electric energy meter. These devices have errors, and there will be various faults, such as inter-turn short circuit in the transformer, high voltage fuse broken and zero line open circuit, etc., repeated grounding of the CT circuit in the secondary circuit, open circuit of the secondary circuit cable and insulation failure, etc. The meter has error out-of-tolerance, hardware failure, working power failure, clock out-of-tolerance, battery failure, etc. In addition, there are overcurrent, shunt or voltage loss caused by human factors such as power theft or improper operation. The traditional management method is...

AI Technical Summary

Problems solved by technology

Technologies such as mass data processing and intelligent auxiliary decision-making are used for the monitoring of the master station, but real-time performance is often difficult to meet in the actual network communication environment

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