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POWERLITE® FORMS
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POWERLITE® forms are made by stacking iron-based Metglas® amorphous alloy 2605SA1 ribbons or laminations. The laminations are ld together by an adhesive rated for a continuous operating temperature of 155 C. The amorphous alloy itself has a higher continuous operating temperature. These forms offer a unique combination of high saturation induction (1.56 T), high permeability and low core loss.

POWERLITE® forms can be used in medium frequency (<20 kHz) and high power (300 to 500 kW) inverters. These have core losses lower than those of 3% or 6% Si steels.

Physical and Magnetic Properties
Metglas®
2605SA1

Ribbon Thickness (µm) 22
Density (g/cm 3 ) 7.18
Thermal Expansion (ppm/°C) 7.6
Crystallization Temperature (°C) 505
Curie Temperature (°C) 392
Continuous Service Temperature SA1(°C) 150
Saturation Flux Density (Tesla) 1.56
Effective Permeability 100

Applications:

  • Medium Frequency Inverters
  • High Power Inverters

Min (mm)
Max (mm)
Tolerance (mm)
Length (mm)
50
300
±.05
Width (mm)
20
50
±.05
Height (mm)
10
100
±.02


Stacking factor = 89 2%
Cross-sectional area of the form = W x H x 0.89/100 cm2
Mass of the form = L x W x H x 0.89 x 7.18 / (1000 x 1000) kg


The forms can be configured into various shapes such as shown below schematically. These special shapes allow for multiple near-zero gaps with reduction in fringe flux and hence, core loss.


POWERLITE Forms Technical Bulletin -

2605 SA1 Alloy Technical Bulletin -

Core Loss Information





 
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