NextGen nanocrystalline inductors Cool Blue (+) · Manager EMC and responsible for new Developments at Improved high Performance multi purpose cores ... in the case of maintenance

© MAGNETEC GmbH, Germany Hans‐Joachim Poess 1MAGNETEC Cool Blue Plus(+)cores as inductive Absorbers

MAGNETECMAGNET-TECHNOLOGIE

Presentation from Hans-Joachim Pöss at PCIM 2013

Manager EMC and responsible for new Developments at www.magnetec.de

Improved high Performance multi purpose cores

NextGen nanocrystalline inductors Cool Blue (+)



Histrorical Grinding systemCurry Cinnamon, Kardamom, Marsala …

Without electroerosion of the bearings ;=)

Where we do not need Cool Blue Cores:



Cool Blue Plus+

What are Cool Blue inductive Absorbers1Where they are used2What is the advantage3Which improvement4Outview (new Typeline)5Other new Products6



1 What are Cool Blueinductive Absorbers

Nanocrystalline Ringcores made out of a ~ 20µm thickamorphous strip changed to nanocrystalline Structure by an annealing Process to a grain size of about 20 Nanometers.This gives about 1000 insulated areas only in the heightdirection of the tape.

The Power losses of Nanoperm is about 1000 times lowerthan from typical Silicon Iron.

The frequency range is fromsome Herz up to the 100 Mega Herz area.



2 Where they are used

To avoidelectroerosionespecially in Motorbearings



2 Where they are usedTo avoid electroerosion in industrial applications ,especiallyin Motorbearings, Gearboxes, Sensors a.s.o.



3 What is the advantageEasy to mount and to retrofit

Cheap compared to other sollutions like Hybrid Bearings

Easy to select

Working parallel against conducted and radiated emissions

Maintenance free

Workingtime over decades (when correct designed)

Effect is immediate seen (Sum Peak Current)



Which improvement4



4 Improved Inductivity



Theoretical Background: SimulationVoltage



Theoretical Background: Simulation no Saturation

Voltage

Current

Current



Theoretical Background: Simulation with SaturationVoltage

Current

Current



Why Mhz and not kHz ?

Because of the impedance of the Motor, especially the bearings:



Which improvement

0,00E+00

2,00E‐01

4,00E‐01

6,00E‐01

8,00E‐01

1,00E+00

1,20E+00

1,40E+00

10 100 1000 10000 100000

|Z|/Ω

Frequenz [kHz]

|Z|(Cool Blue +)(f)/|Z|(Cool Blue)

Up to over 20 %

20 % 100 MHzestimated

Measured values

4



Outview (new Typeline)5Possible mechanical Dimensions



NANOPERM®plate‐coresforwirelesspowertransmission

roundplate‐corePermeabilityµr~5kDimensionOD~300mmID~16mmH~9mm

rectangularplate‐corePermeabilityµr~30kDimensionofonebar:200x20x5

diamand‐core‐shapePermeabilityµr~30kDimensionofthebars:20‐100x10x5

Other new Products6



Cool Blue Cores are increasing the reliabilityof Motors and complete Machines in the case of maintenance and avalability.

With the new Cool Blue Plus(+) the performance is over 20 % higher

Thank your for your attandance

Cool Blue Cores are absorbing the dangerous electrical noise andchange it to safe thermical energy

Cheap Steel Bearing; No expensive insulated (Hybrid) Motorbearings are needed in many cases

Documents

NextGen nanocrystalline inductors Cool Blue (+) · Manager EMC and responsible for new Developments at Improved high Performance multi purpose cores ... in the case of maintenance