generator automatic control avr sx440 for stamford

  generator automatic control avr sx440 for stamford Generator Parts Technical data   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 applications 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  

SX440
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

    Usage

* Biogas Power Generation

* Natural Gas Power

* Field Engineering

* Electric Power

* Factory

* Fire-fighting

    Why choose us?   1.Started export since the year of 2007,with quick response to serve the oversea customers   2.Have already passed the strict quality inspection of ISO9001:2000 quality management system   3.Strong R&D Team to design and test products   4.Professional designers and technicians to provide technical assitance   5.Strict quality control process with strict standards   6.Strong installation consulting support   7.Quick after-sale technical advice and guidance    

Move Advantage
sales	1000pcs/month	the fastest transit time	2days!
inventory situation	a lauge number of stocks	operational advantages	easy for operation
production cycle	1~3days	Service	answer all of your questions within 1day

Advantage in Material and Technology
Polyester capacitor	Germany EPCOS China production
Semiconductor power devices	In NXP Chinese package
Main power resistors	British WELLWIN original
Pict	U.S. BOURNS original
Adjusting potentiometer
Chip capacitors	South Korea's Samsung
Glue	PU environmental protection, at the same time does not change the electrical properties of high-temperature and high-temperature characteristics
More advantages	1.After the the strict fully functional and performance testing, and high-temperature aging, each batch of test reliability ratio of 3%. The parameters of each board are rigorously tested and adjusted, fully compatible with original products                           2.High stability of the key components of the product, we use a low temperature coefficient components to ensure product       3.Original two transistor, and 2 ounces of large-current circuit board (the majority of the conventional circuit board is 1 ounce) to ensure high reliability in a high-power semiconductor element

  Product line Payment term   1.We accept L/C, Alipay, West Union, TT. Cash.    2.All major Credit cards are accepted through secure payment processor ESCROW.   Shipment term 1. We Ship to Worldwide, except APO/FPO    2. Orders processed timely after showing remittance copy.    3. We only ship to confirmed order addresses. Your order address MUST MATCH your  address.    4.Items are shipped from China by Airmail, reach most of the countries within 4 to 20 business days.    5.Delivery time depends on destination and other factors, it may takes up to 20 business days.   6. SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.    7. If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!   Guarantee   1. Guarantee:365 days 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.    7.We do not repair or replace item with an expired warranty.    8.All emails will be answered within 1 business day. If you do not receive our reply, please kindly re-sent your email or give us a call any time.   Note If the contents mentioned other manufacturers's names and models, the narrative only for informational purposes, this product is not original, but it can compatible with them.   Any questions please feel free to contact me! Thank you!  

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