dc up to 100 mhz inductive absorbers which … blue cores and line... · rf attenuation from dc up...
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© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 1/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Application: Electric – Motors
RF attenuation from DC up to 100 MHz
Inductive Absorbers to eliminate
high frequency noise from your
installation
Version 1.2
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 2/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Problem with Servo Motors - Part 1:
The main Bearings are normally not damaged by Electroerosion´.
The Sensor Bearings (Servo Motors) are easily damaged by high frequency
Currents running over it.
Target is to reduce the high frequency peak Current under 10 A.
Without having a too high temperature (below 60 °C) at the cores and the
cost should be in an acceptable range.
Easy mounting and no maintenace is required.
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 3/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Servo – Motors are special: Absorption of HF-noise
Initial situation: nealy 40 A Ipeak Common Mode Currents
Improvement: lower than 15A Ipeak Common Mode Currents
Cores deacitvated
Cores acitvated
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 4/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Problem with Servo Motors - Part 2:
How to get more absorption without getting too hot ?
1. Use the suitable common mode COOL BLUE cores by selecting
the mechanical shape (inner hole has to be big enough) and
the maximum peak current (Common Mode)
or look at the application table for different Power and Motor cable lengths
2. Add NANOPERM Line Absorbers (NaLA High Permeability ~ 80.000)
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 5/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
1. step: introducing COOL BLUE Cores
5
10
15
20
25
30
35
40
45
50
5 7 9 11 13 15 17 19
Pea
kcu
rren
t / A
Cable length / m
AC-drive (fPWM = 5kHz)
Ipeak with and without common mode cores
no core
1 core M-113
2 cores M-113
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 6/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
2. step: adding NANOPERM Line Aborbers NaLA type M-381
option for effect demonstration :
deactivate cores by a shortcut
2 x M-113
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 7/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Reducing Ipeak from ~ 40 A down to ~ 6 A by combination of
COOL BLUE Cores and NANOPERM Line Absorbers NaLA
and smoothening the High Frequency away
without cores
with combined cores
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 8/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Solution: Combine the COOL BLUE Cores and NaLA cores
to absorb the Common Mode Noise to save thermal Energy
2 x M-112 COOL BLUE Cores
6 x M-381 (NaLA)
U
V
W
L1
L2
L3
shield
Common Mode
Differential Mode
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 9/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Solution: Combine the COOL BLUE Cores and NaLA cores
to absorb the Common Mode Noise to save thermal Energy
2 x M-367 COOL BLUE Cores
3 x M-053 (NaLA)
U
V
W
L1
L2
L3
shield
Common Mode
Differential Mode N=2
7,5 KW
50 m
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 10/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
1. Common Mode Noise suppression for Inverter drives
with NANOPERM Cores Table: selection and amount of Cool Blue Cores depending on rated power and cable length
Hans-Joachim
Poess
All data are for information and not guaranteed values.
Inverter power range up to
Kilowatt 0,7 7,5 30 75 315 1.200 > 1.200
horse power 1 10 40 102 428 1.631 > 1.631
p/n oval n/a M-049 M-049 M-283 M-302 M-111 M-248
p/n round M-923 M-367 M-367 M-113 M-116 M-117 n /a
Cab
le le
ngt
h [
m]
50/164 ft 2 2 4 4 4 4 4
A
mo
un
t of co
res
[pcs.]
100/328 ft 4 4 4 4 4 4 4
150/492 ft 4 4 6 6 6 6 6
300/984 ft 4 4 6 6 6 6 6
Low power range (up to 10 kw) need some times 2 turns on the Nanoperm cores
N=1 N=2
© MAGNETEC GmbH, Germany 2014 Hans-Joachim Poess 11/10 COOL BLUE and NaLA filter for DC up to 100MHz
Only for Presentation MAGNETEC MAGNET-TECHNOLOGIE
Table : selection and amount of NaLA Cores depending on rated power and cable length Hans-Joachim
Poess
All data are for information and not guaranteed values.
Inverter power range up to
Kilowatt 0,7 7,5 30 75 315 1.200 > 1.200
horse power 1 10 40 102 428 1631 > 1.200
p/n M-606 M-053 M-102 M-381 M-613 M-614 M-616
core size Da Di h [mm]
16x11x5 25x20x10 30x20x10 40x32x15 80x63x30 100x80x30 160x130x30
Cab
le le
ngt
h [
m]
50/164 ft 2 1 1 1 1 1 1
Am
ou
nt o
f core
s [p
cs.]
100/328 ft 4 2 2 2 2 2 2
150/492 ft 6 3 3 3 3 3 3
300/984 ft 8 4 4 4 4 4 4
2. Differential Mode Noise suppression for Inverter drives
with NANOPERM Line Absorbers NaLA
If the NaLA cores getting too warm, use the double amount each line