
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.
Guangdong ALI Testing Equipment Co,.Ltd
Since establishment in 1985, Guangdong ALI Testing Equipment Co., Ltd, a wholly-owned subsidiary of GSKA Group has been providing a wide and complete range of products and services to the society. GSKA has now 16 offices, warehouses and service centres in China, with head office loCAT-partsed in Hong Kong. There are more than 100 employees in GSKA Group, and we are expanding into many industries with rapid expanding pace of China.
There are mainly 4 departments in GSKA Group, namely:
1) Construction and Mining equipment
GSKA has been cooperating with many international famous brands in
China, such as Ingersoll-rand, Atlas Copco and Liebherr. Our
products include concrete batching plants, concrete mixers,
hydraulic crawler drills, pneumatic crawler drills, water well
drills, air compressors, road compactors, breakers and various
other equipment. We are major in several industries, such as
hydro-electric power plants, cement quarries, coal mines and
railway systems.
In order to provide a quick response to our customers, we have stocked over US$1.5 Million spare parts of Ingersoll-rand and Atlas Copco in our Chinese warehouse. Recently, we have exported small air compressors, pneumatic crawler drills, water well drills and drilling accessories and spare parts to overseas market.
2) Power Group
GSKA has been supplying CAT-parts and Broadcrown gensets for more than
15 years. Our major customers include Telecoms, Banks, Airports,
Factories and many other sectors in the society. We are also doing
assembly of gensets in China, under our brand name of "GSKA " with ratings from 1KVA to 2000KVA. The quality of "GSKA " genset has won a very good reputation from customers in China and
overseas market.
We are also the specialists for genuine spare parts, such as CAT-parts, Perkins, FG Wilson, Cummins, , Volvo, etc.
Besides gensets, we also provide total solution on the power problems, such as Powerware - UPS, DC system and battery ,lightning equipment and many other electronic products.
3) Security and IT Group
GSKA acquired famous USA brand name Locktronix in 2004 and started
manufacture electric locks in China. Since then, we have been
exported products to the Middle East, South Asia and Africa. Our
market is expanding each year and we are looking for more
distributors in different countries to be our business partners.
Besides electric locks and accessories, we have also developed our
own access control system by our software team. The system includes
smart card solution and also biometric access control, such as
hand-key, fingerprint and facial recognition. Our EC-PAYROLL system
has been widely used in many factories both in Hong Kong and
mainland China.
After all, GSKA has an objective of "Always Provide the Best" and we shall consistently provide high quality products and reliable services to our worldwide customers. We are looking forward to making good business with our partners