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PDF SX460 Data sheet ( Hoja de datos )
| Número de pieza | SX460 | |
| Descripción | AUTOMATIC VOLTAGE REGULATOR | |
| Fabricantes | Newage International Limited | |
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SX460 AUTOMATIC VOLTAGE
REGULATOR (AVR)
SPECIFICATION, INSTALLATION AND ADJUSTMENTS
General 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.
A frequency measuring circuit continually monitors the
generator output and provides
output under -speed
protection of the excitation system, by reducing the output
voltage proportionally with speed below a pre -settable
threshold. A manual adjustment is provided for factory
setting of the under frequency roll off point, (UFRO). This
can easily be changed to 50 or 60 Hz in the field by push -
on link selection.
Provision is made for the connection of a remote voltage
trimmer, allowing the user fine control of the generator's
output.
Technical specification
INPUT
Voltage
Frequency
Phase
Jumper selectable
95-132V ac or
190-264V ac
50-60 Hz nominal
1
OUTPUT
Voltage
Current
Resistance
max 90V dc at 207V ac input
continuous 4 A dc
Intermittent 6 A for 10 secs
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
Filed current to 90%
Machine Volts to 97%
20 ms
80 ms
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
100Hz – 2kHz
Operating temperature
Relative Humidity 0-70°C
Storage temperature
50mm/sec
3.3g
-40 to +70°C
95% (see note 5)
-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.
TD_SX460.GB_04.05_05_GB
http://www.Datasheet4U.com
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| Páginas | Total 4 Páginas | |
| PDF Descargar | [ Datasheet SX460.PDF ] | |
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