comparison

Ratios of Losses are tabulated below for Amorphous & CRGO Cores

  Amorphous Core CRGO Cores
Eddy Current Losses Hysteresis Losses Eddy Current Losses Hysteresis Losses
Linear Loads 33% 67% 67% 33%
Non-Linear Loads 1.3 X Linear Loads 1.8 X Linear Loads

Comparison of Key Features of Amorphous Metal (Vs) CRGO Steel Transformers

Properties Units Amorphous Metal Core Grade 2605 SA1 CRGO Steel Grade-M4(Stacked Core)
Density g/cm2 7.19 7.65
Specific Resistance   130.00 45
Saturation Flux density Tesla 1.58 2.03
Typical Core loss at 50 Hz Watts/kg 0.22@1.4T 0.89@1.5T
Nominal Thickness mm 0.025 0.27
Annealing Temperature 0C ~360(possible for Magnetic Filed Annealing) ~800
Core construction & Assembly - Wound core construction with lap jointing for ready use. Assembly of sheared &cut laminations.
Productivity - Comparatively high & less wastage Low
Core Steel Grade - Single grade with uniform quality Multiple grades with varying quality
No load Losses - Very low(as much as 75% less) when compared with CRGO core transformers Comparatively high
Coil winding - Concentric rectangular shaped coils for better space factor. Concentric circular coils.
Repairability - Repairable*    Video clipping on repair Repairable

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