New AVR AVR-20 Alternator Voltage Regulator For DATAKOM

Description

New AVR AVR-20 Alternator Voltage Regulator For DATAKOM
DESCRIPTION
Introduction:
AVR-20 Voltage Regulator is an electronic device which lets the alternator to produce fixed output voltage. It has open chassis, resin molded design and is intended to be mounted in the alternator’s terminal box.
AVR-20 measures the voltage between one of the alternator phases and the neutral point and adjusts the DC voltage applied to the excitation winding until reaching the desired voltage. The output stage of the device is a Half Wave tyhristor output associated with a free wheeling diode. Basically the unit is compatible with all brushless type alternators. A stability adjustment potentiometer is also provided for this purpose. The AVR-20 has a special relay-less electronic circuit design. The required minimum residual voltage for build up is 5 V-AC.
The unit does not include moving parts; therefore it is able to operate in highly vibrating environments. The AVR-20 includes a low frequency protection circuit. This feature reduces the output voltage during overload or engine stop. Therefore the diesel engine is protected from excessive torque generated by high startup currents of large electrical equipments. Similarly, the diesel engine may be stopped under load without damage. The easy connection scheme of the device allows fast and easy replacement.
FEATURES
Half-Wave thyristor output,
0-20 amps. output current,
0-115 volts output voltage,
Relay-less circuit design,
Low frequency protection,
Built in voltage adjustment,
Remote voltage adjustment,
Stability adjustment,
Easy connection scheme,
Compatible with various types of alternators.
AVR-20 Voltage Regulator is an electronic device which lets the alternator to produce fixed output voltage. It has open chassis, resin molded design and is intended to be mounted in the alternator’s terminal box. Basically the unit is compatible with all brushless type alternators. A stability adjustment potentiometer is also provided for this purpose.
The AVR-20 has a special relay-less electronic circuit design. The required minimum residual voltage for build up is 5 VAC.
OPERATION
The device operates on 230-volt phase-to-neutral voltage. The output voltage, as well as the internal supply voltage, is directly picked up from the input sensing voltage. The device needs 5 V-AC for startup. The half wave tyhristor output voltage is 115 volts maximum. During operation, the device continuously monitors the input voltage and increases/decreases the excitation voltage in order to maintain the input voltage to a constant value.
The AVR-20 keeps the alternator voltage change in minimum limits in case of a load change, and helps to reach the required voltage value quickly. The regulation is P-I type, the proportional reaction is fast and the slow acting integral reaction helps the unit to recover the precise set voltage. The stability potentiometer adjusts the reaction speed of the device. This helps the unit to comply with a large variety of alternators.
The AVR-20 is able to produce up to 20 amps continuous current output. The alternator voltage may be adjusted via the built in potentiometer. Also external voltage adjustment feature is provided, in this case the external potentiometer value shall be 1 kilo-ohms. The low frequency protection circuit shuts off the excitation voltage in order to prevent damage during engine stopping under load. The factory set value for the protection is 45Hz.
The alternator EXCITATION terminals shall not be connected to any point but the unit. The NEUTRAL and EXCITATION (+) points are internally connected.
INPUTS AND OUTPUTS
PHASE-R: Alternator phase input.
NEUTRAL: Alternator neutral input, internally connected to the Excitation(+) terminal.
EXCITATION (+): Excitation winding (+) terminal, internally connected to the Neutral terminal.
EXCITATION (- ): Excitation winding (- ) terminal
TECHNICAL CHARACTERISTICS
Phases: single phase.
Voltage Adjustment Range: 210-250 Volts min
Frequency: 50/60Hz.
Frequency Protection Adj. Range: 40-50Hz
Output Voltage: 0-115 volts-DC at 230volts
Output Current: 20A continuous,
Residual Voltage For Build Up: 5 volts minimum
Regulation: +/- 2% typical.
Power Output Stage: Half Wave tyhristor.
Internal Fusing: 10A (fast acting fuse)
Operating temp.: -10°C (14°F) to 60 °C (140°F).
Storage temp.: -20°C (-4°F) to 80 °C (176°F).
Maximum humidity: 95% non-condensing.
Dimensions: 125x68x35mm (L x W x H)
Fixing centers: 115mm, 2xM6
Weight: 280grams
Dutys For International Buyers
● Import duties, taxes and charges are not included in the item price or shipping charges. These charges are the buyer's responsibility.
● Please check with your country's customs office to determine what th additional costs will be prior to bidding/buying.
Shipping Policy
Payment Mathord
Returns Policy
About Feedback
Company Profile
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Shipping Policy
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Economy Shipping from America warehouse:
USPS First Class Package usually takes 3-5 workdays
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Expedited Shipping From America warehouse:
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UPS NEXT DAY AIR SAVER SERVICE is also avaliable for most districts , if need , please contact us . Thanks
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Payment must be received 4 days after auction ended.
Returns Policy
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Customer satisfaction is our top goal. We believe our items are so outstanding. All products are quality checked. They are new and in good condition when shipped to our customers. We are convinced you will be happy with your Purchase.
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If product is defective or damage upon arrival, or wrong product shipped, please contact us immediately. Returns accepted within 30 workdays of delivery date and item must be in original new condition, not worn or altered in any way with attached tags & wrap. Otherwise deal is final. Return shipping must be paid by buyer.
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Company Profile
Who we are ?
JEENDACONTROLS was founded in Wenzhou year 2006,now located in Hangzhou,Zhejiang,China, is a professional supplier of oem and aftermarket generator spare parts and accessories. We provide full range of spare parts and accessories for generating set which includ Leroy somer Alternator parts,Stamford Alternator parts,Marthon Alternator parts,Siemens Alternator parts,Cummins Genset parts,FG wilson Genset parts,Caterpillar genset parts,Perkins Genset parts.The regular products in stock such as AVR(Automatic voltage regulator),GAC and Cummins Speed Governor and Actuator,Deepsea generator controller panel,ComAp generator controller pannel,ATS(Automatic Transfer Swith),Oil pressure Sensors,meters,diode bridge,Battery chargers,Shut down Solenoid,Flame out Solenoid,Turbocharger,Soundproof Material,Water Jacket Heater,Canopy Locks and Hinges,Rain Cap,Lifting Hook,Anti-Vibration Mountings..etc. In one word,JEENDA aims to provide one-stop service for your generator spare parts demand.
Quality and Services:
The quality of our spare parts is very reliable because we have used original and genuine spart parts used by the original gensets manufacturer.For instance,Company A is using B Company's engine starter,then we buy directly from B Company for engine starter.We use some famous products such as cummins Speed Governor and Actuator which is original OEM parts supply to CCEC and DCEC,DEEPSEA controller panel etc.We also familiar with quality parts-and-accessories suppliers in China.The staff of JEENDA Machinery is honest,reponsible and considerate.They are with good experience in generator industry,too.That's because JEENDA people clearly understand that good professional service,good products serve people one-stop purchasing for genset spare parts for long-term.
Engine brands we serve:
Those engine brands which we can provide spare parts service includes Cummins(DCEC and CCEC),Perkins,Caterpillar,LOVOL,Yangdong,Weichai,YTO,WEICHAI DEUTZ,VOLVO,JCB,KUBOTA,BOBCAT,CARRIER,THERMO KING,Lister Peter,etc.
Future Development ......
JEENDACONTROLS people will stay true to provide one-stop service for our customers.More and more new quality products will be developed and provided to world market.
We sincerely look forward to starting up long-term cooperation with all clients and suppliers from  all over the world.
Contact us
If you have any question before or after purchase , please feel free to contact us via eBay message , we will reply you within 24 hours .