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-AVR-SX440-AVR-for-Generator.jpg)
-AVR-SX440-AVR-for-Generator-Gensets.jpg)
-AVR-SX440-AVR-for-Generator-Genset.jpg)
-AVR-SX440-AVR.jpg)
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Voltage:120 Volts
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Engine Displacement:418 Cubic Centimeters
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Frequency:50 Hz
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Item Weight:1.05 pounds
Automatic Voltage Regulator (AVR) | AVR SX440 | AVR for Generator Genset
The SX440 serves as a two-phase
sensed Automatic Voltage Regulator (AVR) and integral part of brushless
generator excitation systems. By monitoring voltage in the main generator
winding, it adjusts power to the exciter stator, ensuring stable output voltage
within specified limits despite load variations, temperature changes, and power
factor shifts. Its excitation power comes from a three-phase permanent magnet
generator (PMG), isolating AVR control circuits from nonlinear loads and
minimizing radio frequency interference. The PMG system also enables sustained
generator short circuit current. Additionally, the AVR offers droop CT
connection capability, facilitating parallel operation with similarly equipped
generators.
- SX440
is a two phase sensed Automatic Voltage Regulator(AVR)
- Input:190-264V
ac max, 1 phase 2 wire
- Output:max
120V/DC
- Regulation:
+/-1%
- Vibration:20 -100HZ (50mm/sec), 100Hz -2kHz
Technical specification
|
INPUT |
|
|
Voltage |
190-264V
ac |
|
Frequency |
50-60Hz
nominal |
|
Phase |
1 |
|
Wire |
2 |
|
OUTPUT |
|
|
Voltage |
max 90V
dc at 207V ac input |
|
Current |
continuous
10A dc |
|
Intermittent
16A for 10 secs |
|
|
Resistance |
10 ohms
minimum |
|
Regulation |
+/ - 1%
(see note 1) |
|
THERMAL
DRIFT |
0.04% per
deg. C change in AVR ambient (note 2) |
|
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 (see note 3) |
|
UNDER
FREQUENCY PROTECTION |
|
|
Set
point |
95% Hz
(see note 4) |
|
Slope |
170% down
to 30 Hz |
|
UNIT
POWER DISSIPATION |
12 watts
maximum |
|
BUILD UP
VOLTAGE |
4.8
Volts@AVR terminals |
|
ANALOGUE
INPUT |
|
|
Maximum
input |
+/- 5V dc
(see note 5) |
|
Sensitivity |
1 v for
5% Generator Volts (adjustable) |
|
Input
resistance |
1 k ohm |
|
QUADRATURE
DROOP INPUT |
10 ohms
burden |
|
Max.
sensitivity: 0.07 A for 5% droop OPF |
|
|
Max.
input: 0.33 A |
|
|
ENVIRONMENTAL |
|
|
Vibration |
20-100 Hz
50mm/sec |
|
100 Hz -
2k Hz 3.3g |
|
|
Operating
temperature |
40 to +70
°C |
|
Relative
Humidity 0-70 °C |
95% (see
note 6) |
|
Storage
temperature |
-55 to
+80 °C |
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