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Description
3.3 Installation
3.3
Installation
3.3.1
Machine design
Motors of this series are low-voltage three-phase induction motors with a cylindrical shaft
extension and keyway. They can be supplied as single-speed machines with different
efficiency classes or as pole changing machines for several speeds.
In the case of machines with feet (IM B3 type of construction), the feet are cast or bolted on.
It is possible to change over the bolted on mounting feet on the machine enclosure, for example
to change the terminal box position; only authorized retrofit partners may carry out this work.
Measures for alignment and mounting (Page 47)
The regulations and standards used as basis to design and test this machine are stamped on
the rating plate. The machine design basically complies with the following standards:
Table 3-1
Applicable general regulations
Feature
Dimensioning and operating behavior
Procedure for determining the losses and the efficiency of rotating electrical machines
and inspections
Degree of protection
Cooling
Type of construction
Terminal designations and direction of rotation
Noise emission
Starting characteristics of rotating electrical machines
Vibration severity grades
Efficiency classification of three-phase squirrel-cage induction motors
IEC standard voltages
3.3.2
Cooling and ventilation
The machines of this series are three-phase induction machines with a closed primary
(internal) cooling circuit and an open secondary cooling circuit (surface cooling). The surface
cooling varies depending on the version.
20
Standard
EN / IEC 60034-1
EN / IEC 60034-2-1
EN / IEC 60034-2-2
EN / IEC 60034-2-3
EN / IEC 60034-5
EN / IEC 60034-6
EN / IEC 60034-7
EN / IEC 60034-8
EN / IEC 60034-9
EN / IEC 60034-12
EN / IEC 60034-14
EN / IEC 60034-30-1
IEC 60038
1PC134, 1PC136 crane motors SH 132 ... 315
Operating Instructions, 02/2019, A5E43212221A
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