Novel electric energy meter with temperature measurement function

Abstract

The invention discloses a novel electric energy meter with a temperature measurement function, and the electric energy meter comprises an incoming line and outgoing line looseness judgment module, a line diameter and power matching module, an electric energy meter burnout judgment module, and an incoming line and outgoing line temperature measurement module. The novel electric energy meter can monitor the temperature of incoming and outgoing lines in real time, the electricity consumption of the user everyday derived by a metering automation system is compared with the operation temperature of the user at the corresponding moment everyday, so that the electric energy meter is prevented from being burnt out, the probability of burning out of the electric energy meter is effectively reduced, and the safety coefficient of the circuit is improved.

Description

technical field [0001] The invention relates to the technical field of electric energy meters, in particular to a novel electric energy meter with a temperature measuring function. Background technique [0002] The electric energy meter currently in use has functions such as billing, remote reading of electricity consumption, current, voltage, and remote power transmission. A large number of burnt-out electric energy meters are analyzed in detail, and the reasons for burning out the electric energy meters include the following two aspects: [0003] 1. The contact of the incoming or outgoing wires of the electric energy meter is loose: it is a normal work to deal with the burning of the electric energy meter in the operation and maintenance of the power supply station. There are many reasons for the electric energy meter to burn out. The more prominent reason is that the electric energy meter The contact point of the incoming or outgoing line is loose, which leads to an incr...

AI Technical Summary

Problems solved by technology

[0003] 1. The contact of the incoming or outgoing wires of the electric energy meter is loose: it is a normal work to deal with the burning of the electric energy meter in the operation and maintenance of the power supply station. There are many reasons for the electric energy meter to burn out. The more prominent reason is that the electric energy meter The contact point of the incoming or outgoing line is loose, which leads to an increase in the resistance around the contact point. The increase in resistance will cause the temperature around the contact point to rise. Increase, repeat this action at the contact point until the resistance at the connection point is too large to cause local overheating and breakdown arc or electric spark, causing the energy meter to burn out

[0004] 2. The incoming or outgoing line of the electric energy meter touches the fire: when installing the user's electric energy meter in the early stage, the selection of the corresponding electric energy meter's incoming and outgoing lines is selected according to the kW declared by the user at that time; however, as the user's needs continue to change Changes, the power consumption is basically increasing, which will cause the diameter of the incoming or outgoing wires to be small, resulting in heavy or overloaded currents of the incoming and outgoing wires. When the current of the incoming or outgoing wires reaches a certain value Finally, it will cause the insulation layer of the wire to age or even melt. Due to the small distance between the wires in the electric energy meter box, it is easy to cause a short circuit between the live wires, resulting in a fire; may cause fire

[0005] When the electric energy meter burns out, the surrounding temperature is not only high, but also accompanied by sparks. Since most of the existing building materials do not have flame retardancy, when the electric energy meter burns, the temperature reaches a certain value and it is easy to cause a fire, eventually causing a larger loss

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