Stamford Automatic Voltage Regulator - AVR SX460
- Stamford
- UK
- 7 days
- 1000 sets
Attention please!
The AVR SX460 is now obsolete and replaced by the AVR AS440. The production of original Stamford AVR SX460 is definitely discontinued.
The SX460 is an analogue, 2-phase sensing, self-excited automatic voltage regulator (AVR). The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage.
The SX460 is most commonly used on Stamford alternator UC range and are supplied as standard to the UC22 and UC27 alternators.
Attention please!
The AVR SX460 is now obsolete and replaced by the AVR AS440. The production of original Stamford AVR SX460 is definitely discontinued. You probably can still find some stock units in the market, or you can choose the quality good China made repalcement ones.
The SX460 is an analogue, 2-phase sensing, self-excited automatic voltage regulator (AVR). The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the output voltage.
The SX460 is most commonly used on Stamford alternator UC range and are supplied as standard to the UC22 and UC27 alternators.
Technical specification:
INPUT
Voltage: Jumper selectable, 95-132V ac or190-264V ac
Frequency: 50-60 Hz nominal
Phase: 1
OUTPUT
Voltage: max 90V dc at 207V ac input
Current: continuous 4 A dc, Intermittent 6 A for 10 secs
Resistance: 15 ohms minimum
REGULATION
+/- 1.0%
THERMAL DRIFT
0.05% per deg. C change in AVR ambient
TYPICAL SYSTEM RESPONSE
AVR response: 20 ms
Filed current to 90%: 80 ms
Machine Volts to 97%: 300 ms
EXTERNAL VOLTAGE ADJUSTMENT
+/-10% with 1 k ohm 1 watt trimmer
UNDER FREQUENCY PROTECTION
Set point: 95% Hz
Slope: 170% down to 30 Hz
ENVIRONMENTAL
Vibration: 20-100 Hz 50mm/sec
100Hz – 2kHz 3.3g
Operating temperature: -40 to +70°C
Relative Humidity: 0-70°C 95%
Storage temperature: -55 to +80°C
NOTES
1) With 4% engine governing
2) After 10 minutes.
3) Applies to Mod status F onwards. Generator de-rate may
apply. Check with factory.
4) Factory set, semi-sealed, jumper selectable
5) Non condensing.
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