2-28
Engineering Guide CDA3000
2 Drive definition
For more information on rotating electric machines, rating and operating
behavior, refer to standard DIN VDE 0530 or
EN 60034-1.
Tolerances of standard three-phase AC motor to DIN 57 530/IEC 34
Property Tolerance
Efficiency [
η
]
P
N
≤
50 kW - 0.15 (1-
η
)
P
N
>
50 kW - 0.1 (1-
η
)
Power factor [
ϕ
]
min. 0.02; max. 0.07
Slip [ s ] ± 20%
Break-away starting current [ l
A
]
+ 20%
Break-away torque [ M
A
]
-15% to +20%
Breakdown torque [ M
K
]
-10%
Noise [ L
A
]
+3 dB(A)
Voltage deviation [ u ]
±5% at rated load and 45ºC ambient tem-
perature
Table 2.3 Tolerances to DIN 57530 and IEC 34
1 ϕcos–
6
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