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

I. Transformer Operating Tap PositionsIs the number of tap positions on a transformer equal to its number of operating tap positions?In China, on-load tap-changing (OLTC) transformers typically have 17 taps, while off-load tap-changing transformers usually have 5 taps—some may have 3 or 2.Theoretically, the number of tap positions equals the number of available operating positions. During operation, the tap position of an OLTC transformer can be adjusted under load to regulate voltage. However,