AVR R438 Automatic Voltage Regulator for Diesel Generator

$78.00

Availability: 19 in stock

**Genuine Alternative:** This is a high-quality aftermarket replacement for the Leroy Somer Genset AVR Voltage Regulator R438

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Description

The 3-phase Generator AVR Automatic Voltage Regulator R438 AVR is powered by two auxiliary windings which are self-sufficient of the voltage match circuit, the first winding has a voltage in proportion to that of the alternator (characteristic shunt), the second has a voltage in proportion to the stator current (compound characteristic: booster effect). The power supply voltage is rectified and filtered before being used by the AVR monitoring transisitor.

SPECIFICATION INSTALLATION AND ADJUSTMENTS

AVR R438 Automatic Voltage Regulator for Diesel Generator

Details

Voltage Regulation±0.5%
Remote voltage adjustment range±0.5%
Short circuit capability3 x Irated for 10 seconds
Standard power supplyAREP or PMG
Rated overload current8 A – 10 s
Voltage sensing5 VA isolated via transforme
0-110V terminals95 to 140V
0-220V terminals170 to 260V
0-380V terminals340 to 520V
Voltage regulation± 1%
Current sensingC.T.2.5VA cl1, secondary 1 A
Voltage sensing95~140 volts (50/60 Hz)
170~260 volts (50/60 Hz)
340~520 volts (50/60 Hz)
Fit for1000 series generator
2000 series generator
3000 series generator

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