Resistance Welding - Electrical Fast Transient Burst and Surge Test
The Electrical Fast Transient/Burst (EFT/B) test and Surge (Impulse) test for resistance welding equipment are core items of the electromagnetic compatibility (EMC) immunity test for industrial-grade welding equipment.
They mainly simulate two typical transient disturbances in industrial power grids:
The EFT/B test targets high-frequency pulse interference caused by switching operations and relay chattering, while the surge test simulates strong transient overvoltage shocks generated by lightning induction and grid switching.
Both tests jointly verify the stability of the control system and power modules of resistance welding equipment in complex industrial power grid environments, so as to avoid issues such as welding parameter drift, false triggering, shutdown, and even component damage.
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