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Avr Sx440 Power Electronic Stabilizer Voltage Regulator Switch Avr Generator Spare Parts 220v Voltage Protector

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Product Description

SX440

●SX440 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 +/-0.5%.
 
SENSING INPUT
Voltage
190-264V ac


Frequency
50-61 Hz nominal

phase
1

Wire
2

OUTPUT
Voltage
max 90V dc at 207V ac input


Current
continuous 4A dc, intermittent 6A for 10 secs

Resistance
15 ohms minimum

REGULATION
+/- 1.0%

THERMAL DRIFT
0.04% per deg. C change in AVR ambient

TYPICAL SYSTEM RESPONSE
AVR 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 @ AVR 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

Our Certifications
  7.1-详情_11 
Our Factory
  7.1-详情_01

About the company

7.1-详情_10

  Payment & Delivery
 
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