Supply; Shunt Excitation System; R220 Vsg + Ccm; R 220 Vsg Characteristics - Leroy-Somer R220 VSG+CCM 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 VSG + CCM 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.
P1
Voltage
CCM input (±3V)
P2
Stability
4
Installation and maintenance

R220 VSG + CCM

A.V.R.
2 - R220 VSG A.V.R. + CCM

2.1 - R 220 VSG characteristics

- Storage : -55°C ; +85°C
- Operation : -40°C ; +65°C
- Voltage regulation: ± 0.5%.
- Voltage supply/sensing range 12 to 70 V
(30 to 67 Hz)
- 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-
blow action (tolerates 10 A for 10 s)
The fuse is impregnated in the resin,
therefore it can not be replaced.
- Variable frequency from 30 Hz to 67 Hz.
- The size of the screwdriver tip used to
adjust the potentiometer is 2.5 mm.
VOLT (-) (+)
4705 en - 2013.05 / b
(U) (V)
124 mm