DATAKOM: ATS, AMF, AVR, ECM, DKG controllers for diesel, gas, petrol gensets including manual start and auto mains failure generator controls, electronic engine governors, alternator automatic voltage regulators, automatic transfer switches, battery chargers, meters and analyzers, contactors, synchroscopes and automatic synchronizers for multi generating set paralleling and mains synchronization. Buy Datacom online.

DATAKOM AVR-8 Automatic voltage regulator for generator alternators

Datakom DATAKOM AVR-8 Automatic voltage regulator for generator alternators
Datakom DATAKOM AVR-8 Automatic voltage regulator for generator alternators
Datakom DATAKOM AVR-8 Automatic voltage regulator for generator alternators
(0)
$90.00
pcs.

DATAKOM AVR-8 voltage regulator is an electronic device which lets the alternator to
produce a fixed output voltage.

The device has open chassis, resin molded design and is intended to be mounted in the alternator’s terminal box. The unit does not include moving parts; therefore it is able to operate in highly vibrating environments.

The device measures phase to neutral or phase to phase voltage of the alternator and adjusts the DC voltage applied to the excitation winding until reaching the desired voltage.
The unit offers low-frequency protection feature. A frequency measuring circuit continually monitors the generator output and provides output for lowfrequency protection of the excitation system, by reducing the output voltage proportionally with frequency below a manually adjustable threshold.

The nominal frequency can easily be changed to 50 or 60 Hz in the field by push-on link selection.

Sensing loss protection circuit terminates the excitation and protects the windings if there is no voltage on the sensing input.

The excitation power is derived directly from the generator terminals.The required minimum residual voltage for build up is 4 V-AC.

The output stage of the device is a Half Wave thyristor 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.

A ±3V analogue input is provided allowing external voltage adjustment.

The AVR has the facility for droop CT connection, to allow parallel running with other similarly equipped generators. An overload protection circuit limits the output current to its nominal value, preventing device failure under overload or short circuit condition.

FEATURES:
Half-Wave thyristor output
Designed for highly vibrating environment
Built in voltage adjustment
Stability adjustment
Compatible with various  alternators
External voltage adjustment trimmer input
Analogue voltage adjustment input
Droop input for parallel running
Sensing input provides phase-phase or phase-neutral control
Compatible for 50 and 60 Hz
Low frequency protection
Exciter over current protection
High Temperature protection
Sensing loss protection
Optional adjustable overload limit.

TECHNICAL SPECIFICATIONS:
SENSING INPUT
    Voltage 195-265 V-AC (L-N)
          340-450 V-AC (L-L)
(see Connection Diagram)
    Frequency 50-60 Hz nominal
POWER INPUT
    Voltage 195-265 V-AC (L-N)
    Frequency 50-60 Hz nominal
OUTPUT
    Voltage max 90 V-DC at 207 V-AC input
    Current max 8 A-DC (continuous)
REGULATION
    ± 1% (see note 1)
THERMAL DRIFT
    0.03% per °C change in AVR ambient (see note 2)
TYPICAL SYSTEM RESPONSE
    AVR response 20ms
SOFT START
     2 sec
EXTERNAL VOLTAGE ADJUSTMENT
     ±10% with 2 k ohm 1 watt trimmer
UNDER FREQUENCY PROTECTION
    42-50 Hz or 52-60 Hz (adjustable)
UNIT POWER DISSIPATION
    18 watts maximum
BUILD UP VOLTAGE
    4 V-AC at AVR terminals
ANALOGUE INPUT
     ±10% with ±3 V-DC (see note 3)
QUADRATURE DROOP INPUT
     Max. input: 5A
    Max. droop: 10% (adjustable)
DIMENSIONS
     Height: 37mm, Weight: 250gr
ENVIRONMENTAL
    Operating temperature -20 to +70 °C
    Maximum humidity 95% non-condensing.
    Storage temperature -30 to +80 °C
NOTES
    1. With 4% engine governing.
    2. Heated up to 70°C
    3. Any device connected to the analogue input must be galvanically isolated from ground, with an insulation strength of 500 V-AC.


WE DO NOT SHIP THIS PRODUCT TO USA AND CANADA

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DATAKOM: ATS, AMF, AVR, ECM, DKG controllers for diesel, gas, petrol gensets including manual start and auto mains failure generator controls, electronic engine governors, alternator automatic voltage regulators, automatic transfer switches, battery chargers, meters and analyzers, contactors, synchroscopes and automatic synchronizers for multi generating set paralleling and mains synchronization. Buy Datacom online.