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4.3.2 Making the electrical connections
(terminal box for auxiliary circuits)
At the factory, the conductors from supply and monitoring devices are routed inside the machine to a
separate terminal box with line-up terminals (see dimension drawing and associated text). The terminal
assignment is shown on the auxiliary terminal diagram. Consult the dimension drawing text for details of the
maximum conductor cross-sections that can be connected.
The appropriate types of screwed gland for incoming cables are listed in the dimension drawing. Before
closing the terminal box:
Consult the terminal diagram before connecting the incoming conductors
Check that the inside of the terminal box is clean and free from odds and ends of wiring material
Ensure that unused cable entries are closed and that the plugs are screwed down tight.
4.3.3 Safeguarding
Generator must be well protected by means of regressive protection to prevent dangerous operational
situations and overcurrent defects. Generators must be safeguarded in compliance with nominal current that
is determined in output name plate.
4.4 First start and operation
4.4.1 Installation
Prior to launching a driving machine, the following must be checked:
- Visual inspection of the machine (external, internal state) – according by
- Generator load must be disconnected
- Insulation resistance must be kept at least to minimal value
- Safety regulations concerning operation of aggregate must be adhered
- Protective wire must be connected
- Before first start of the machine, open the reduction valves to their maximum position.
- When the machine reaches the nominal speed only adjust oil flow according to the dimension
drawing text. After adjusting the oil flow, lock the reduction valves.
Item
Visual inspection of the machine
(external, internal state)
Product documentation 1D 3.8.en
Working voltage V
Minimum air distance mm
550 < U <= 750
750 < U <= 1100
5500 < U <= 6600
8300 <U <= 11000
13 800
Tab. 7 Minimum air distance
Points to check
Mechanical damage, wear,
paint damage, corrosion,
leaks, dirt, foreign bodies,
porous seals.
Tab. 8 Visual inspection of the machine
Rev. E, 10/13
10
14
60
100
140
1)
1) Not contained in DIN
Tab. 8
Inspection and maintenance work
If you identify any damage or signs of
damage, then initiate measures to
remove the damage or to limit the
damage. When required, inform
Siemens service, see page (). In case of
detection of any moisture, it is
necessary to measure according to
chapter
4.2.12 Checking the
insulation resistance of stator
winding
and
4.2.14 Drying
page 30/42
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