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NORDAC FLEX (SK 200E ... SK 235E) – Users Manual for Frequency Inverters
Pos : 760 /Anleitungen/El ektr onik /FU und Starter/8. Z us atzi nform ati onen/Motor daten Kennlini en [SK 1x 0E, SK 2x 0E]/87Hz Kennli nie [SK 1x 0E, SK 2xx E] @ 2\m od_1347450038971_14638.docx @ 46325 @ 3 @ 1
8.8.2 87 Hz characteristic curve (only 400 V devices)
( Variation 1:17 AM)
The 87 Hz characteristic represents an
extension of the speed adjustment range with
a constant rated motor torque. The following
points must be met for realization:
•
Motor delta connection with a motor
winding for 230/400 V
•
Variable Frequency Drive with an operating
voltage 3~400 V
•
Output current of variable frequency drive
must be greater than the delta current of
the motor used (ref. value variable
frequency drive power ≥ √3 motor power)
In this configuration, the motor used has a rated operating point at 230 V/50 Hz and an extended
operating point at 400 V/87 Hz. This increases the power of the drive by a factor of √3 The nominal
torque of the motor remains constant up to a frequency of 87 Hz. Operation of a 230 V winding with
400 V is totally uncritical as the insulation is designed for test voltages of > 1000 V.
Pos : 761 /Anleitungen/El ektr onik /FU und Starter/8. Z us atzi nform ati onen/Motor daten Kennlini en [SK 1x 0E, SK 2x 0E]/87Hz Kennli nie_Tabellen [SK 2xxE] @ 6\mod_1429275790438_14638.docx @ 212333 @ @ 1
NOTE: The following motor data applies to standard motors with 230 V/400 V windings.
Motor
Variable
(IE1)
Frequency
Drive
SK ...
SK 2xxE-...
71S/4
550-340-A
71L/4
750-340-A
80S/4
111-340-A
80L/4
151-340-A
90S/4
221-340-A
90L/4
301-340-A
100L/4
401-340-A
100LA/4
551-340-A
112M/4
751-340-A
132S/4
112-340-A
132M/4
152-340-A
132MA/4
182-340-A
160MA/4
222-340-A
* at rated point
268
Figure 39: 87 Hz characteristic curve
M
*
Parameterization data of variable frequency drive
N
[Nm]
F
n
N
N
[Hz]
[rpm]
1.73
50
1365
2.56
50
1380
3.82
50
1385
5.21
50
1395
7.53
50
1410
10.3
50
1390
14.6
50
1415
20.2
50
1415
26.4
50
1430
36.5
50
1450
49.6
50
1450
60.6
50
1455
72.2
50
1455
M/M
Characteristic 87 Hz (4-pole motor)
Kennlinie 87 Hz (4-poliger Motor)
N
M/Mn
P/P
N
1,2
1
0,8
0,6
0,4
0,2
0
0
10
20
30
40
50
Frequenz / Hz
0
1445
I
U
P
N
N
N
[A]
[V]
[kW]
1.3
230
0.25
1.89
230
0.37
2.62
230
0.55
3.52
230
0.75
4.78
230
1.1
6.11
230
1.5
8.65
230
2.2
11.76
230
3.0
14.2
230
4.0
20.0
230
5.5
26.8
230
7.5
32.6
230
9.2
37
230
11
Frequency
60
70
80
90
100
[Hz]
Speed
2890
[rpm]
cos ϕ
Y/Δ
R
[Ω]
St
Δ
0.79
39.9
Δ
0.71
22.85
Δ
0.75
15.79
Δ
0.75
10.49
Δ
0.76
6.41
Δ
0.78
3.99
Δ
0.78
2.78
Δ
0.78
1.71
Δ
0.83
1.11
Δ
0.8
0.72
Δ
0.79
0.46
Δ
0.829
0.39
Δ
0.85
0.36
BU 0200 en-US-4920
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