Adjusters
SX440 AUTOMATIC VOLTAGE REGULATOR (Automatic Voltage Regulator)
SX440 is a half.wave phase-controlled thyristor type Automatic Voltage Regulator (Automatic Voltage Regulator) and forms part of the excitation system for a brush-less generator.In addition to regulating the generator and voltage, the Automatic Voltage Regulator circuity includes features under-speed and sensing loss protection features. Excitation power is derived directly from the generator terminals.
Automatic Voltage Regulator SX440
SENSING INPUT
Voltage
190-264V ac
Frequency
50-61 Hz nominal
phase
1
Wire
2
OUTPUT
Voltage
max 90V at 207V ac input
Current
continuous 4A , intermittent 6A for 10 secs
Resistance
15 ohms minimum
REGULATION
+/- 1.0%
THERMAL DRIFT
0.04% per deg. C change in Automatic Voltage Regulator ambient
TYPICAL SYSTEM
RESPONSE
Automatic Voltage Regulator response
20ms
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
UNIT POWER DISSIPATION
12 watts maximum
BUILD UP VOLTAGE
4 Volts @ Automatic Voltage Regulator terminals
ANALOGUE INPUT
Maximum input
+/- 5 Vdc
Sensitivity
1v for 5%
Input resistance
1k ohm
QUADRATURE DROOP INPUT
10 ohms burden
Max. sensitivity: 0.07 A for 5% droop 0PF
Max. input: 0.33A
ENVIRONMENTAL
Vibration
20-100 Hz,50mm/se
100Hz - 2kHz, 3.3g
Operating temperature
-40 to +70 Deg. C
Relative Humidity 0-70
Deg. C
95%
Storage temperature
-55 to +80 Deg. C
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Hign-concerned Chemical : None
Model Number : sx440
apply : diesel generator
power : below 200kw
phase : single or three phase
voltage : 220v 380v
excited current : 4A