Fels Mobilis ELITE Manual page 11

In the absence of information about running simultaneity of consumers, please refer to the table
hereunder:
Number of
consumers
1
2
3
4
5
2 hoisting devices
working together
(1) For a drive through n motors of rated intensity ln' in parallel, please consider l
2. INTENSITY DURING THE START-UP PHASE
(2 seconds maximum)
Take into account the number of receivers starting up simultaneously and those already in
operation, then calculate the corresponding intensity. When the start-up intensity is not known, find
the approximate value as follows:
����������−���� ��������������
�� =
Where
�������������� ��������������
(In general, K = 5 to 6 for cage motors, K = 2 for slipring motors, K = 2 with frequency converter)
In the absence of information about running simultaneity of consumers, please refer to the table
hereunder:
Number of
consumers
1
2
3
4
5
2 hoisting devices
working together
3. CALCULATION OF THE VOLTAGE DROP
Under normal running conditions, the voltage drop must be within 2% - 6% of the nominal voltage,
according to the operating phase and the upstream/downstream features of the installation. The
voltage drop between the origin of installation and any point of use shall not exceed the standard
or set values for the applications.
Mobilis line calculation
www.fels.fr | T +33(0)3 88 67 10 60
For the whole hoisting devices
st
2
1 motor
Most powerful
¹
motor
x
x
x
x
x
x
I = K . I
d n
For the whole hoisting devices
st nd
1 moteur 2 motor
Id In Id
x
x
x x
x x
x x
x x
| F +33 (0)3 88 55 01 79
nd
motor
rd
3 motor
Motor, in power descending order¹
x
x x
x x
x x
x x
x x
for a single receiver
rd
3 motor
In Id In
x
x x
x
x
x
| Edité le 04/01/2017
th
4 motor
x
x
x
= n x l
n n'
th
4 motor
Id In
x
x
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