Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

1. What Causes Transformer Damage from Lightning Strikes? Direct Lightning Strike: When lightning directly hits a transformer or its nearby transmission lines, it generates an enormous transient current that instantly flows through the transformer windings and core. This causes the insulation material to heat up rapidly—even melt—leading to winding short circuits or burnout. Damage from direct strikes is often catastrophic. Lightning-Induced Voltage (Electromagnetic Induction): Even if lightning