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AssigneeHuizhou City Fu Yi Electronic Technology Co., Ltd.
InventorsChenqin FU, Haipeng FU, Yuanhai FU
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In a non-contact multi-wire current measurement system a live wire magnetic field signal and a neutral wire magnetic field signal are synchronously acquired in real time based on a preset sampling frequency, to achieve highly time-synchronized magnetic field acquisition without damaging a cable structure, avoiding a phase misalignment problem caused by a traditional clamp sensor under a multi-wire interference condition. A magnetic field amplitude ratio is calculated in real time, sensitivity is automatically adjusted based on a coupling deviation due to a difference in wire diameter and insulation layer, a self-corrected magnetic field signal set is generated, a live wire current and a neutral wire current are calculated, and a total current is obtained by further combining the live wire current with the neutral wire current. This non-contact vector-based calculation method avoids wire heating, voltage drop, and safety risks associated with direct series measurement.
A non-contact multi-wire current measurement system, comprising:
Dependencies are inferred from the claim text.