Installation; Lifting; Mounting On Engine - Sincro DC Serie Manual De Uso Y Mantenimiento

A drop in cooling air flow or inadequate
protection of the generator can lead to
damage and/or malfunction of the windings.
WARNING!
The engine induces quite complex vibrations, including
harmonics with different frequency that, when added to the
generator vibrations, can cause substantial vibration levels
dangerous for the generating set operation. Therefore it
is essential that the plant engineer takes all necessary
measures to ensure alignment and provide a firm base and
supports in order to prevent vibrations from exceeding the
standard.
The alternator is designed to work with vibration's values
as reported in ISO 8528-9.
Alignment of single bearing generators is critical because
it may give rise to vibrations along the coupling between
engine and generator. For this purpose special attention
must be given to the alternator to engine assembly,
providing a solid base and implementing anti-vibration
dampers to support the engine/alternator assembly.
Dual bearing generators require a rigid frame to support
the engine/generator so that a good base is established
for a precise alignment. This frame should be anchored to
the base with anti-vibration dampers. In order to minimize
twist oscillations, it is advisable to use a suitably sized
flexible joint.
In belt transmissions applied to dual bearing generators
it is essential that the pulley diameters and constructions
permit the load applied to the shaft to be centred with the
length of the nub. The acceptable loads can be requested
directly to the Sincro Technical Office.
The generator is supplied without a
connection to earth; to make this connection
refer to relevant local regulations. An
inefficient earth connection or safety cut-out
WARNING!
can cause injury or death.
The generator fault currents are available on request to help
the plant engineer in sizing the plant and its components.
20

6. INSTALLATION

An error in installation, use, maintenance
or replacement of parts can cause severe
injury or death, not to mention damage to
the machinery. All work on electrical and/or
WARNING!
mechanical parts must be carried out by a
qualified specialist.

6.1 Lifting

Lift and handle the generator with suitable equipment either
on a pallet or by the lifting lugs located on the generator in
the positions indicated in the figure.
When lifting the DC IB generator use equipment with
a load bearing capacity of at least 200kg.
When lifting the DC FB/E3/FT generator use
equipment with a load bearing capacity of at least
100kg.
When lifting and handling single bearing generators they
must be kept horizontal in order to avoid, if operations
should go wrong, the rotor from slipping out and being
damaged and possibly causing severe injury.
An insufficient loadbearing capacity can
cause severe injury and damage.
CAUTION!

6.2 Mounting on engine

For tightening torques refer to section 6.2.4.
For mechanical connections it is recommended to use
screws in class 8.8.
The lifting lugs on the generator have been
designed for lifting only the generator and
not the whole generating set.
CAUTION!