Uneven winding resistance readings can indicate potential issues in a transformer, such as:
- Damaged Windings: Short circuits or open circuits within windings.
- Loose Connections: Poor connections in leads or terminals can increase resistance.
- Tap Changer Problems: Worn or faulty tap changers may cause variable resistance.
- Thermal Aging: Heat-damaged areas in the winding may show higher resistance.
- Insulation Degradation: Weak insulation can affect winding stability, indirectly altering resistance.
Identifying these issues through winding resistance testing helps in diagnosing faults and ensuring transformer reliability.
Nov 06,2024
