Tags: Leroy Somer AVR R450 for LEROY SOMER Generator

LEROY SOMER AEM110RE003, AEM110RE017, 922-045

Description

R 450 is an analog A.V.R..
It is designed for alternators with a
SHUNT, AREP or PMG excitation .
R 250 controls the excitation current in order
to maintain the output voltage of the alternator.
R 250 is performant in terms of voltage
regulation, simple to set , to use and is reliable.
Rotating switch for U/f, LAM, excitation type and
voltage sensing are available.

Main feature and characteristics
- Voltage regulation : ± 0.5 %.
- Under-speed protection by function :
1 U/f (LAM : OFF).
2 U/f (LAM : MODE1).
Auto-adaptating LAM + 2 U/f (LAM : MODE 2).
- Nominal excitation current : 6A.
- Maximum excitation current : 10A during 10 s.
- Supply range 150V (50Hz/60Hz).
- Voltage Detection: lt;=530V
- Protection : fuse fast 10A.
- Protection on load, short-circuit
and voltage reference loss.

Operation conditions
- Operating temperature range : - 40° C à + 65° C.
- Storage temperature range : - 55° C à + 85° C.
- Hygrometry : 98%.
- Maximum choc : 9 g on 3 axis..
- Vibrations : less than 10 Hz , 2 mm peak magnitude.
From 10 Hz to 100 Hz : 100 mm/s, below 100 Hz : 8g.
Optional modules compatible
- R 731 : three phase voltage sensing.
- R 734 : 3-phase current and voltage sensing for parallel operation
- R 726 : regulation system changed to “4 - function”

Connexion and setting
Settings are done through the A.V.R.
- Potentiometer P1 : voltage setting.
- Potentiometer P2 : stability setting.
- Potentiometer P3 : excitation.
- Rotating switch selection 1 : frequency, U/F function, LAM function
- Rotating switch selection 2 : alternator type and voltage sensing (1 ph. ou 3 ph.).
- Rotating switch selection 3 : excitation type (AREP or PMG) and time response.
- Potentiometer P4 : quadrature droop.