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SX460 AUTOMATIC VOLTAGE REGULATOR (AVR)
SX460 Automatic Voltage Regulator for generator
Description:
SX460 is a half-wave phase-controlled thyristor type, Automatic Voltage Regulator (AVR) and forms part of the
excitation system for a brush-less generator. In addition to regulating the generator voltage, the AVR
circuitry includes under-speed and sensing loss protection, features. Excitation power is derived directly from the
generator terminals. Positive voltage build up from residual levels is ensured by the use of efficient semiconductors in the power circuitry of the AVR.The AVR is linked with the main stator windings and the exciter field windings to provide closed loop control of the
output voltage with load regulation of +/- 1.0%. In addition to being powered from the main stator, the AVR
also derives a sample voltage from the output windings for voltage control purposes. In response to this sample
voltage, the AVR controls the power fed to the exciter field, and hence the main field, to maintain the machine output
voltage within the specified limits, compensating for load, speed, temperature and power factor of the generator.Specification:
INPUT
Voltage Jumper selectable
95-132V ac or
190-264V 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% (see note 1)
THERMAL DRIFT
0.05% 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
10 watts maximum
BUILD UP VOLTAGE
4 Volts @ AVR terminals
ENVIRONMENTAL
Vibration 20-100 Hz 50mm/sec
100Hz – 2kHz 3.3g
Operating temperature -40 to +70°C
Relative Humidity 0-70°C 95% (see note 5)
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.
We also provide other models of AVR as follows but not limited:
Stamford |
Leroy Somer |
Marathon Basler |
|
SX460 |
R230 |
SE350 |
|
SX440 |
R250 |
|
|
AS440 |
R438 |
|
|
AS480 |
R448 |
AVC63-7 |
|
MX321 |
R449 |
|
|
MX341 |
R450 |
AVC63-12 |
|
Sample order ESCROW:
/store/group/AVR-for-Generator/1230650_255409688.html
Send Inquiry to This Supplier
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