Ingersoll-Rand G 130, Руководство пользователя и инструкция по обслуживанию

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12
INSTALLATION AND MAINTENANCE
LSA 42.2 - 2 & 4 POLE
ALTERNATORS
INSTALLATION
Réf. 3433 GB - 4.33/a - 01.01
LEROY-SOMER
3.3.2 - Connection checks
Electrical installations must comply with the current
legislation in force in the country of use.
Check that:
- the differential 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. (Disconnect the blue wire
of the R 791 interference suppression module linking the
neutral).
- any protective devices in place have not tripped,
- if there is an external regulator, 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 terminal lugs on
top of one another as shown in the terminal connection
diagrams.
3.3.3 - Electrical checks on the A.V.R.
- Check that all connections have been made properly as
shown in the attached connection diagram.
- Check that the frequency selection strap "ST3" is on the
correct frequency setting.
- Check whether strap ST4 or the remote adjustment
potentiometer have been connected.
- Optional operating modes (R 438 LS)
• Strap ST1: cut to connect the R 731 3-phase detection
module.
• Strap ST2: cut for rapid response time.
• Strap ST5: cut to suppress the LAM function.
3.4 - Commissioning
The machine can only be started up and used if the
installation is in accordance with the instructions and
advice 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 maintain 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).
3.5 - Setting up
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. After operational testing,
replace all access panels or covers.
The A.V.R. is used to make any adjustments to the machine.
3.5.1 - R 230 adjustments (Shunt system)
Initial potentiometer settings
- Potentiometer P1 (AVR voltage adjustment): fully
anticlockwise.
- Remote voltage adjustment potentiometer: middle
Run the alternator at its rated speed: if the voltage does not
increase, the magnetic circuit should be remagnetized (see
section 4.5).
- Turn the AVR voltage adjustment potentiometer P1 slowly
until the output voltage rated value is obtained.
- Adjust the stability using P2.
- Sealed potentiometer P3 is factory set at 48 Hz for 50 Hz
and 57.5 Hz for 60 Hz.