Amorphous Cores

The latest in Metglas amorphous technology is available for low flux density applications in single and three phase.

Magnetic properties

Operating Flux Density:

  • Typical Single Phase: 1.3 - 1.4 Tesla
  • Typical Three Phase: 1.25 - 1.35 Tesla

Saturation:

  • Induction (T) as cast: 1.56

No - load Core Loss and Exciting Power:

  • At the test condition of 1.3T, 50Hz, specific loss ≤0.18W/kg; specific exciting power ≤0.45VA/kg
  • At the test condition of 1.3T, 50Hz, specific loss ≤0.20W/kg; specific exciting power ≤0.60VA/kg
  • The no-load loss and exciting power of the three phase - Evans core will be approximately 25% higher and will vary according to specific design

Physical properties

Core Space Factor:

  • Guaranteed Minimum: 86%

Density:

  • g/cm3 as cast: 7.19

Core Design Standards:

  • Ribbon width (A): 142mm, 170mm, 213mm
  • Core build-up (B): 0~300mm; maximum
  • Window width (C): 55~1500mm; tolerance: +3/-0m
  • Window height (D): 180~2000mm; tolerance: +3/-0mm
  • Joint build (G): B x 1.10~1.20mm
  • Window radius (R): 6.4 +/-1.5mm
  • Outermost layer shearing length: not more than 100000mm
  • Continuous service temperature: 150oC

Core surface is coated in Epoxy Resin, not more than 2mm thick per side, (Dimension (H)) Ribbon width +4mm.

 

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Cnr Simon Bekker & Crompton Roads, Germiston South, South Africa
 +27 (0)11 825 1010/1/2/3
 
 +27 (0)86 212 9931 (fax)
 
 sales@amccores.com