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AVR-20 Alternator Voltage Regulator
Part Number:
AVR-20
Part Name:
AVR(AVR-20 Alternator Voltage Regulator)
Features:
Half-Wave tyhristor output
0-20 amps. output current
0-115 volts output voltage
Relay-less circuit design
Low frequency protection
Built in voltage adjustment
Stability adjustment
Remote voltage adjustment feature
Easy connection scheme
Compatible with various types of alternators
Connection Diagram:
Description:
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 VAC. 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.
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