10
INSTALLATION AND MAINTENANCE
LSA R 49.1 Air/air heat exchanger
ALTERNATORS - Ex II 3 G
INSTALLATION
4081 en - 09.2006 / a
LEROY-SOMER
3.4.2 - Connection checks
Electrical installations must comply with the current
legislation in force in the country of use.
Check that :
- The residual circuit-breaker conforms to legislation on
protection of personnel, in force in the country of use, and has
been correctly installed on the alternator power output as
close as possible to the alternator. (In this case, disconnect
the wire of the interference suppression module linking the
neutral).
- Any protective devices in place have not been tripped.
- If there is an external AVR, the connections between the
alternator and the cubicle are made in accordance with the
connection diagram.
- There is no short-circuit between phase or phase-neutral
between the alternator output terminals and the generator set
control cabinet (part of the circuit not protected by
circuit-breakers or cubicle relays).
- The machine should be connected with the busbar
separating the terminals as shown in the terminal connection
diagram.
3.5 - Commissioning
The machine can only be started up and used if the
installation is in accordance with the regulations and
instructions defined in this manual.
The machine is tested and set at the factory. When first used
with no load, make sure that the drive speed is correct and
stable (see the nameplate). On application of the load, the
machine should achieve its rated speed and voltage;
however, in the event of abnormal operation, the machine
setting can be altered (follow the adjustment procedure in
section 3.5). If the machine still operates incorrectly, the
cause of the malfunction must be located (see section 4.4).
3.6 -
Settings
The various adjustments during tests must be
made by a qualified engineer.
Take care that the drive speed specified on the
nameplate is reached before commencing
adjustment
1500 min
-1
/ 50Hz or 1800 min
-1
/ 60 Hz.
Do not try to set the voltage if the frequency or
speed is not correct (risk of irreparable rotor
damage).
The only possible adjustments to the machine should be
made on the AVR.
After operational testing, replace all access panels
or covers.
WARNING
WARNING