1 - Description
-R 450 is an analog A.V.R..
-It is designed for alternators with a SHUNT, AREP or PMGexcitation .
-R 450 controls the excitation current in order to maintain the output voltage of the alternator.
-R 450 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.
2-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).
- Protection : fuse fast 10A.
- Protection on load, short-circuit and voltage reference loss.
3- - 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.
4-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.
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