Specification:
Voltage regulation +/-0.5% at a steady-state and constant speed
Phase to phase voltage sensing
Controls by transistor mean the regulation quality is independent of load applied
Integrated "LAM" system to cope with increased loads applied to the engine
Suitable for high levels of vibration and harsh environments
The R438 is compatible with other modules giving additional functions
Standard power supply: AREP or PMG
Rated overload current: 8A-10s
Electronic protection(overload, a short circuit on the opening of voltage sensing circuit excitation overload current for 10 seconds then return to approximately 1A).
Fuse: F1 on X1,X2.8A;slow-250V
Voltage sensing: 5VA isolated via transformer
- 0-110V terminals=90-140V
- 0-220V terminals=170-260V
- 0-380V terminals=340-520V
Voltage Regulation:+/-1%
Normal or rapid response time via ST2 jumper
Voltage adjustment via potertiometer P2
Current sensing(parallel operation): C.T. 2.5VA cl1,sencondary 1A(optional)
Quadrature drop adjustment via potertiometer P1
Max,excitation current adjustment via P5
Applications to Alternators: LSA 42.2,43.2,44.2
Compatible with the AREP or PMG exitation system
Application:
- Leroy Somer Voltage Regulator AEM110RE017 AVR
- Leroy Somer Voltage Regulator AEM110RE003 AVR
- SDMO Voltage Regulator 330410127 AVR
- SDMO Voltage Regulator 330410164 AVR
- SDMO Voltage Regulator 330410334 AVR
- FG Wilson Voltage Regulator 922-045 AVR
- Cat / Olympian Voltage Regulator 922-045 AVR
