Intelligent electric energy meter for realizing fault arc detection function and realization method thereof

A smart electric energy meter and fault arc technology, applied in the field of smart electric energy meters, can solve problems such as low customer acceptance, household power failure, main switch cut off, etc., to save installation and wiring costs, prevent electrical fires, and prevent electrical fires. Effect

Inactive Publication Date: 2018-10-09
WAHLAP TECH CO LTD
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Problems solved by technology

3) The temperature-measuring electrical fire detector uses a temperature sensor to sample the temperature of the monitored area. If the temperature is higher than the threshold, it is judged as an electrical fire accident. Its main protection is to alarm or cut off the circuit after an electrical fire has occurred to prevent further spread of the accident. This method cannot Directly detect and judge fault arc
This method can basically protect v

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  • Intelligent electric energy meter for realizing fault arc detection function and realization method thereof
  • Intelligent electric energy meter for realizing fault arc detection function and realization method thereof
  • Intelligent electric energy meter for realizing fault arc detection function and realization method thereof

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Embodiment Construction

[0034] The above and other technical features and advantages of the present invention will be described in more detail below in conjunction with the accompanying drawings.

[0035]Aiming at the wave characteristics with high-frequency harmonic components when the fault arc occurs, the invention designs a fault arc characteristic frequency detection module circuit to detect the high-order harmonics generated when the fault arc occurs, and then according to the voltage, current and frequency Sampling to identify the load characteristics of the fault arc and determine the occurrence of the fault arc; generate a fault arc event and upload it to the power consumption management system of the power bureau through active reporting, which can be pushed to Users, realize the early warning and prevention of electrical fires.

[0036] The block diagram of the smart energy meter system that realizes the arc fault detection function is as follows: figure 1 As shown, it includes a user loa...

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Abstract

The invention discloses an intelligent electric energy meter for realizing a fault arc detection function and a realization method thereof. A user load circuit is sampled in real time by voltage and current sampling channels, electricity quantity and electricity fee metering is carried out by a professional metering module, data of the sampling channels are shared at the same time for fault arc voltage and current detection, a fault arc characteristic frequency detection module is added, fault arc judgment is carried out through a software algorithm, parallel fault arcs, series fault arcs andground fault arcs are detected reliably, and on the basis of not increasing a large hardware cost and not changing the original home wiring, active fault arc event reporting can be carried out throughan electric energy meter centralized meter reading system, and low-cost and high-efficiency fault arc detection and early warning functions are realized.

Description

technical field [0001] The invention relates to a fault arc detection technology, in particular to an intelligent electric energy meter capable of realizing a fault arc detection function and a realization method thereof. Background technique [0002] Arc is commonly known as "electric spark", also known as "ignition". It is essentially a natural phenomenon in which an insulator changes from non-conductive to conductive, and emits light and heat after being broken down by voltage. Arcs can be divided into three categories: good arcs, similar arcs, and fault arcs. Good arc: The arc produced by artificial manufacturing such as fluorescent lamps, arc welding, and breaking of mechanical switches, or by normal operation. Arc-like: The distortion of current and voltage caused by the start-up or operation of some equipment is similar to some characteristics of the current and voltage of the arc. Arc fault: arc fault is a gas free discharge phenomenon caused by air breakdown cause...

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Application Information

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IPC IPC(8): G01R31/12G01R22/10
CPCG01R31/12G01R22/10
Inventor 户杰宋锡强马粉莲
Owner WAHLAP TECH CO LTD
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