Leroy Somer R438 AVR
Descrição:
R 438 is an analog A.V.R. It is designed for alternators with a AREP or PMG excitation. R 438 controls the excitation current in order to maintain the output voltage of the alternator. R 438 is performant in terms of voltage regulation, simple to set , to use and is reliable. It can run without LAM (U/f), or with LAM, selection is done by strap ST5. It is in compliance with I.E.C. 60034-1 standard and U.L. 508 / C.S.A. approved.
Principais caracteristicas:
- Voltage regulation : ± 0.5 %.
- U/F function (1).
- LAM function (2).
- Response time : 500 ms
- Nominal excitation current : 5A
- Maximum excitation current : 8A during 10 s.
- Supply range and voltage détection : 95 to 520 V.
- Protection : fuse 8A
Condições de funcionamento:
- Operating temperature range: - 40° C à + 70° 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.
Compatibilidade opcional modular:
- 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.