Supply; Shunt Excitation System; R220 A.v.r; Characteristics - Leroy-Somer R220 Installation And Maintenance Manual

LEROY-SOMER

1 - SUPPLY

1.1 - SHUNT excitation system

The alternator with Shunt excitation is self-
excited with an R 220 voltage regulator.
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 capacity.

2 - R220 A.V.R.

2.1 - Characteristics

- Storage : -55°C ; +85°C
- Operation : -40°C ; +65°C
- Voltage regulation: ± 0.5%.
- Voltage supply/sensing range 85 to 139 V
(50/60 Hz)
- Rapid response time (500 ms) for a
transient voltage variation amplitude of ± 20%
- Voltage setting P1
- Stability setting P2.
SHUNT SYSTEM
Armature
5+
Field
P1
ST4
Potentiometer for remote
voltage adjustment
P2
ST3
50 Hz
4
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Installation and maintenance
MAIN FIELD
6-
Voltage
Option
Stability
Frequency
60 Hz
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R220
A.V.R.
- Power supply protected by 8 A fuse, slow-
blow action (tolerates 10 A for 10 s)
The fuse is impregnated in the resin,
therefore it can not be replaced.
- Frequency: 50 Hz with ST3 jumper - 60 Hz
without ST3 jumper.
- The size of the screwdriver tip used to
adjust the potentiometer is 2.5 mm.

2.2 - R220 AVR option

Potentiometer
adjustment, 1000 Ω / 0.5 W min: adjustment
range ± 5%.
- Remove the ST4 jumper.
For wiring up the external potentiometer;
the "earth" wires must be isolated as
well as the potentiometer terminals
(wires at the same voltage as the power).
STATOR : 12 wires (marked T1 to T12)
VOLT POT 1K
REQUEST A QUOTE REQUEST A QUOTE
4291 en - 2013.03 / d
for remote
T1 T7 T2 T8
T5 T11
T4 T10
110 0V
124 mm
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voltage
T3 T9
T6 T12
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