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

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6
INSTALLATION AND MAINTENANCE
LSA 42.2 - 2 & 4 POLE
ALTERNATORS
TECHNICAL CHARACTERISTICS
Réf. 3433 GB - 4.33/a - 01.01
LEROY-SOMER
2.3 - SHUNT field excitation system
The alternator with Shunt field excitation is self-excited with a
voltage regulator
R 230 . The regulator monitors the exciter
excitation current as a function of the alternator output
voltage. Very simple in design, the alternator with Shunt
excitation has no sustaining short-circuit capability.
2.3.1 - R 230 AVR
- Voltage regulation: around ± 0,5 %.
- Voltage detection range 85 to 139 V (50/60Hz).
- Rapid response time (500 ms) for a transient voltage
variation amplitude of ± 20 %.
- Voltage setting
P1 .
- Stability setting P2 .
- Power supply protected by 8 A fuse, slow-acting (tolerates
10 A for 10s).
- Frequency: 50 Hz with strap
ST3 - 60 Hz without strap ST3
- Factory set underspeed protection P3 plombé usine.
2.3.2 - R230 regulator options
Potentiometer for remote voltage adjustment, 1000
Ω
/
0.5 W min : adjustment range ± 5%.
- Remove strap
ST4 .
2.3.3 - Working with A.V.R. R448
As an option the 448 A.V.R. can be adapted on shunt
alternator in order to get the following functions
In this case the R 230 A.V.R. is disconnected :
- Parallel operation between alternators with current transformer
- Parallel operation with the mains with current transformer
and R 726 module
- 3 phase detection R 731
- LAM function (integrated in the R448).
This A.V.R. and your modules must be installed outside
the terminal box.
In this case, the R 230 is replaced by R 448.
For adjusting and fault detection refer to the section 4.5 of
this notice (the function of R 438 and R 448 are the same, &
2.4).
5+
6 –
F1
ST4
75 mm
140 mm
115 mm
4 x Ø5.8 x 50 mm
E+
E-
0V 110
P3
P1
P2
ST3
50 Hz 60 Hz
R 230
Exciter
field
Voltage sensing
Under-
speed
Stability
Slow-blow
fuse 250 V 8 A
Voltage
Potentiometer for
remote voltage
adjustment
Frequency
100 %
50 Hz 60 Hz
Hz
50 Hz
48 Hz 57.5 Hz
60 Hz
Voltage
Knee-point
U/U
N
Frequency
R 448
0V E– E+ Z2 X1 Z1 X2
5+
6–
S1
S2
ST4
Fuses
50Hz
60Hz
T11
(SUPPLY 110 V)
EXCITER FIELD
T8
ST3
3 ph
P1
P2
S1
S2
U
L1
L3
V W
L2
380 V 220 V 110 V
1 A
ALTERNATOR