SX440 Automatic Voltage Regulator Stamford avr for Brushless Generators
SX440 is a half-wave phase-controlled thyristor type Automatic Voltage Regulator and forms part of the excitation system for a brushless generator. In addition to regulating the generator voltage, the AVR circuitry includes under speed and sensing loss protection to ensure safe, reliable control of the generator
The Propose employs surface mount technology (SMT) for high integration of features in a minute footprint AVR. Positive voltage build up from residual levels is ensured by the use of proficient semiconductors in the power circuitry of the AVR. The control and voltage sensing circuits have separate terminals, allowing the excitation power to be resulting directly from the stator winding for necessary appliCAT-parts-partsions or from an auxiliary winding if sustained short circuit performance is essential. Which is linked with the main stator windings and the exciter field windings to offer closed loop control of the output voltage with load regulations of +/- 1%
* Stability adjustment
* Under frequency roll off adjustment
* Trim adjustment
* Optimum response selection
* Droop adjustment
| Input |
Voltage |
190-264V ac |
| Frequency |
50-60 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% |
300ms |
| 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 |
±5V dc |
| 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 |
Generator AVR SX440 self excited Automatic avr controller,brushless type
avr board is a compatible replacement for Stamford regulator
| Sensing Input |
Terminal 0-110V = 90~150V
Terminal 0-220V = 175~260V
Terminal 0-380V = 350~520V |
| Power Input |
Voltage 100~264 VAC, Single Phase |
| Output |
Voltage Max. 90 VDC at 207 VAC
Current Continuous 4 ADC, Intermittent 10A for 10 sec. |
| Thermal Drift |
0.05% per °C change in AVR ambient |
| DROOP Input |
Max. input 0.33A
Burden 10 Ω
0.07A for 5% droop (PF=0) |
| Under Frequency Protection |
U/F Potentiometer 45~60 Hz |
| Voltage Regulation |
< ± 1% (with 4% engine governing) |
| External Volts Adjustment |
±8% @ 1 KΩ |
| Voltage Build-up |
Residual volts at AVR terminal > 5 VAC |
| EMI Suppression |
Internal Electromagnetic Interference Filtering |
| Exciter Resistor |
DC Resistance 20~100 Ω |
| Analogue Input |
Max. Input ±5 VDC Input Resistance 1 KΩ
1V for 5% generator volts |
| Unit Power Dissipation |
Max. 12 Watt |
| Environment |
Vibration : 1.5 G @ 5~30 Hz , 5.0 G @ 30~500 Hz
Relative Humidity : < 95%
Operating Temperature : -40~60 °C
Storage Temperature : -40~85 °C |
| AVR Controls Functions |
VOLT : Voltage Adjustment
STAB : Stability Adjustment
U/F : UFRO Knee Point Set (U/F: Under Frequency Protection)
DROOP : Droop Adjustment
TRIM : Analogue Input Adjustment
DIP : U/V Rate Set |
| MOVE ADVANTAGE |
| sales |
4000pcs/month |
the fastest transit time |
2days! |
| inventory situation |
a lauge number of stocks |
operational advantages |
easy for operation |
| price |
Factory outlets ! |
Service |
answer all of your questions within 1day |
Payment Term
1.We accept L/C,D/P,D/A, Alipay, West Union, TT. Cash.
2.All major Credit cards are accepted through secure payment processor ESCROW
Shipment Term
DHL,FEDEX,UPS,TNT
Guarantee
1. Guarantee:365days after selled.
2. During guarantee,the items share free repairs or replacement.
3. Customer is responsible for the freight come-and-go,and the custom tax.
4. You may consider to send the defective item with a economical way,and we send back the repaired items with your new order together.
5. To save the cost,pls send the item back without packing.
6. Pls provide the defective appearance and related invoice number.
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