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NORMA 4000/5000
Operators Manual
10-8
Mechanical Power P
m
= n
*
M
d
*
2π/60
P
m
mechanical power in W
Efficiency
η =
%100∗
P
P
m
(MOT) or η = %100∗
m
P
P
(GEN)
η efficiency
P el. power reference
P
m
mechanical power
Slip SL =
%100
ƒ
60
ƒ
∗
∗− p
n
p number of pole pairs
f el. frequency [Hz]
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