Magnetec is your partner in inductive components!
Nanoperm® is a rapid-solidified, iron-based alloy with an extremely fine crystalline structure. It can justifiably be called ‘nanocrystalline’ due to typical grain sizes of 10 nanometers. This structure is responsible for Nanoperm’s exceptionally good soft magnetic properties which can be modified across a wide range through heat treatment in external magnetic fields.
CoolBlue
CoolBlue®– toroidal cores made from our nanocrystalline material Nanoperm® are used to reduce harmful voltages and currents in motor bearings in high-performance and/or fast-cycling inverter drive systems. These unwanted currents in the bearings lead to matting/fluting of the motor bearing, electrical breakdown of the bearing lubricant, and finally to complete failure of the motor.
In addition to reducing overvoltage at the motor terminals, targeted use of CoolBlue® toroidal cores also significantly suppresses the asymmetrical interference currents caused by parasitic leakage capacitances of the motor cable and the motor.
Cut Cores
Cut Cores from grain-oriented electrical sheet have long been familiar in industry. They are typically made of soft magnetic material in energy applications, such as transformers and chokes. However, grain-oriented sheets have limited functionality in applications that require higher frequencies and temperatures. Nanocrystalline Cut Cores overcome the problems with their unique soft magnetic material properties.
Advantages
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Retrofitting existing applications to reduce the motor bearing currents thanks to a simplified installation process
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Reducing the noise level in transformers and chokes
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Smaller form factor in comparison to ferrite cores
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Design of loss- and volume-optimized transformers
Features
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Lower specific core losses
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Magnetic saturation flow density: 1.2 T
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Operating temperature ≤ 180 °C
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Effective permeability (cut, 10 kHz and dependent on the air gap): > 5,000
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Core shapes: round and oval
Nanoperm LA
Nanoperm® Line Absorbers, NaLA®, are the perfect addition to our CoolBlue® toroidal cores for use in inverter motor systems.
Symmetrical interference currents are also significantly suppressed when combined with CoolBlue® toroidal cores. This substantially extends the service life of the motor.
Nanoperm LC
Nanoperm® LC toroidal cores are affordable cores for the manufacture of single or multi-phase current-compensated EMC chokes. Thanks to the square core cross-section, maximum attenuation is achieved with minimal material use. They are thus an excellent alternative to existing ferrite-based solutions.