Differences between S13-M and S20-M oil-immersed transformers: How to choose the energy efficiency upgrade?
Based on three aspects: no-load loss, load loss, and total cost of ownership, we analyze the selection logic and recovery period calculation method for upgrading from S13-M to high-efficiency level S20/S22.
S20/S22 Energy Efficiency Class 1 Oil-Immersed Power Transformer 10-35kV | 50–10000 kVA Full Range
Energy efficiency Class 1 oil-immersed power transformer, S20/S22 series, with capacities ranging from 50 to 10,000 kVA. Focused on energy-saving acceptance and grid expansion projects, it supports configuration for 35kV voltage level and high-temperature/high-humidity environments.