SKU: 96174208560

Automatic Voltage Regulator AVR-20 for Datakom Generator Alternator

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Description

Automatic Voltage Regulator AVR-20 for Datakom Generator AlternatorApplication: For Datakom Generator Alternator Notice: Introduction: AVR 20 Voltage Regulator is an electronic device that allows the alternator to produce fixed output voltage. It has open chassis, molded resin design and is intended to be mounted on the alternator 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 the desired voltage

Application:

For Datakom Generator Alternator

Notice:


Introduction:AVR-20 Voltage Regulator is an electronic device that allows the alternator to produce fixed output voltage. It has open chassis, molded resin design and is intended to be mounted on the alternator 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 the desired voltage level is reached. The output stage of the output device is a half wave tyhristor associated with a freewheeling diode. basically the unit is compatible with all brushless type alternators. a stability adjustment pot is also provided for this purpose. the AVR-20 relay has a special-less electronic circuit design. the minimum residual voltage required to build is 5 V-AC.
the unit does not include moving parts; so it is capable of operating in highly vibrating environments. the AVR-20 includes a low frequency protection circuit. this feature reduces the output voltage during motor overload or shutdown. therefore, the diesel engine is protected from excessive torque currents generated by the high start of large electrical equipment. likewise, the diesel engine can be stopped under load without damage. the device connection scheme allows for quick and easy replacement.
FEATURES:half-wave thyristor output,0-20 amps. the output current,0-115 volts output voltage,relay-less circuit design,low frequency protection,built in tension adjustment,remote voltage adjustment,stability adjustment,easy connection scheme,compatible with various types of alternators.AVR-20 Voltage Regulator is an electronic device that allows the alternator to produce fixed output voltage. It has open chassis, molded resin design and is intended to be mounted on the alternator terminal box. basically the unit is compatible with all brushless type alternators. a stability adjustment pot is also provided for this purpose.the AVR-20 relay has a special-less electronic circuit design. the minimum residual voltage required to build is 5 VAC.
OPERATION:the device operates at 230-volt phase-to-neutral voltage. the output voltage, as well as the internal voltage supply, is directly picked up from the voltage detection input. the device needs 5 V-AC for startup. the half wave tyhristor maximum output voltage is 115 volts. during operation, the device continuously monitors the input voltage and increases / decreases the voltage excitation in order to keep the input voltage to a constant value.
the AVR-20 keeps the alternator voltage change to a minimum in the event of a load change, and helps you reach the required voltage value quickly. the regulation is the PI type, the proportional reaction member is fast and the slow action helps the reaction unit to recover the precise set of voltage. the potentiometer stability adjusts the reaction speed of the device. this helps the unit to comply with a wide variety of alternators.
the AVR-20 is capable of producing up to 20 amps of direct current output. The alternator voltage can be adjusted through the built in potentiometer. also external voltage adjustment feature is provided, in this case the value must be 1 kilo-ohms external potentiometer. the low frequency protection circuit switches off the excitation voltage to prevent damage during the engine stop under load. the factory set protection value is 45Hz.the terminals must not be connected to any alternator EXCITATION point but the unit. the NEUTRAL and EXCITATION (+) points are connected internally.
INPUTS AND OUTPUTS:PHASE-R: Input phase alternator.NEUTRAL: Neutral input alternator, internally connected to the Terminal Excitation (+).EXCITATION (+): Excitation winding (+) of the terminal, internally connected to the Neutral terminal.EXCITATION (-): Excitation winding (-) terminal
TECHNICAL CHARACTERISTICS:phases: single phase.Voltage Adjustment Range: 210-250 Volts minfrequency: 50 / 60Hz.Adj frequency protection. range: 40-50HzOutput voltage: 0-115 volts-DC to 230 voltsOutput current: 20A continuous,Residual Voltage to Build: minimum 5 voltsregulation: +/- 2% typical.Final Power Stage: Tyhristor Half Wave.Internal fusion: 10A (fast acting fuse)operating temperature: .- 10 ¡ã C (14 ¡ã F) to 60 ¡ã C (140 ¡ã F).storage temperature: .- 20 ¡ã C (-4 ¡ã F) to 80 ¡ã C (176 ¡ã F).maximum humidity: 95% non-condensing.dimensions: 125x68x35mm (L x W x H)fixing centers: 115mm, 2xM6weight: 280 grams

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SKU: 96174208560

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chuande tang
Whiting, US
★★★★★ 5
It suits me very well
I have a very large room. Its layout is perfect for me to convert into two rooms. Adding this screen is perfect and matches the style of my house.
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Reviewed in the United States on August 29, 2024
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Gayla K.
Belleville, US
★★★★★ 5
Unable to see through it and no gap at bottom!
Size: 2-Panel, Size: 2-Panel
Used to divide a large upstairs common area and it’s perfect. Needed something that was tall enough to give privacy, but wouldn’t hit the ceiling fan. It’s just over 6ft tall, you can’t see through it and it goes almost all the way to floor, something that was difficult to find with similar products. It is a bit flimsy on the ends and needs some support to stay in place (our ceiling is slanted so it actually hit the slant perfectly and doesn’t move on one end and I put a small hook in the wall for the other end so that it could be moved if needed). Overall it’s great quality and gives the feeling of a separate area/private room.
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Reviewed in the United States on November 12, 2025
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THop
Massapequa, US
★★★★★ 5
Convenient, sturdy and worth the price
Size: 6-Panel, Size: 6-Panel
Exactly what I wanted. Yes, it took some time to put it together and at first, I was concerned about the sturdiness of it. However, once it all came together I am very happy with my purchase. It’s now stable but easily movable. It easily folds for storage. One of the ends readily folds in a single panel so I will be able to use it as an access door. Instructions were fairly straightforward, but takes a while to put it all together. (About an hour and a half ) but quality seems good and well worth the price
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Reviewed in the United States on July 17, 2025
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geri gonzales
Houston, US
★★★★★ 1
Flimsy panel
Size: 1-Panel
Very cheaply made, flimsy, easy to tip over. Lacked good directions, and missed a few steps. Sadly i had to return this item.
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Reviewed in the United States on May 7, 2026
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Amazon Customer
Lexington, US
★★★★★ 4
Divisor de habitacion plegable
Size: 8-Panel, Size: 8-Panel
No fue muy facil armarlo. Pero se ve bien
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Reviewed in the United States on May 4, 2026

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