Is Your Transformer Bleeding Energy? The Truth About CRGO Grade Selection
Many manufacturers compromise on core material to win bids, but the long-term penalty is severe. Using substandard CRGO (Cold Rolled Grain Oriented) steel leads to excessive eddy current losses and overheating. For a 1000kVA transformer, switching from M5 to 23RK085 can reduce no-load losses by up to 25%.
Technical Benchmark:
- Core Material: High-permeability 23RK080 or 23RK085.
- Specific Loss: W(1.7/50) ≤ 0.80 W/kg.
- Magnetic Flux Density: B800 ≥ 1.88 T.
At Chenfan Power, we understand that grid stability depends on these decimals. Having supplied core components to TBEA, we maintain a stacking factor of ≥ 0.97 through precision longitudinal shearing.
Direct Conversion: What is the maximum no-load loss (in Watts) your current 110kV project allows before triggering penalty clauses?

