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Leroy Somer R449 AVR Automatic Voltage Regulator

 Leroy Somer R449 AVR

LEROY SOMER R449 AVR FOR LEROY SOMER ALTERNATORS

LEROY SOMER AEM110RE010


General Description / Specifications


The R 449 voltage regulator is of a shunt type. It is designed to fit as standard on A50 to A 54 alternators. It can be supplied with power either by a power VT, or by the AREP field excitation system, or by a single-phase or 3-phase PMG. Using the R 726 external module, the regulator can control the power factor (2F) and can match the alternator voltage to the mains voltage (3F) prior to synchronization. The circuitry of the R 449 Automatic Voltage Regulator (AVR) provides closed loop control of the alternator output voltage by regulating the exciter field current. The R 449 can be powered by either AREP or the PMG field excitation systems and is fitted as standard on following alternators. The electronic apparatus mounted in a plastic casing are sealed with opaque elastomeric


The regulator includes:
> A main terminal strip (10 terminals) J1
> A secondary terminal block (5 terminals) J2
> A frequency selection terminal block (3 terminals) J3
> A quadrature droop potentiometer P1
> A voltage potentiometer P2
> A stability potentiometer P3
> An underspeed potentiometer P4
> A maximum excitation potentiometer P5
> A sensing selection jumper ST1
  (single/3-phase with an external module)
> A response time jumper ST2
> A frequency selection jumper ST3
> An external voltage setting jumper ST4
> A LAM (load adjustment module) jumper ST5


General Characteristics


> Voltage regulation +/- 0.5 % at steady state and constant speed.
> Two phase voltage sensing.
> Control by transistor means the regulation quality is independant of load applied.
> Integrated "LAM" system to cope with increased  loads applied to the engine
> Suitable for high levels of vibration and harsh environments.

The R 449 is compatible with other modules giving additional functions.(parallel operation, 3 phase sensing)


Applications


Alternators LSA 50.1, 51.2, 53, 54.
Compatible with the SHUNT, AREP+ PMI or PMG excitation system


The R449 is in Compliance with: IEC, VDE, NEMA, BS, CSA, UL508 CE low voltage


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USD$ 3,029.00 Available in Stock- Same Day Shipping Worldwide

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TECHNICAL INFORMATION AND RESOURCES

(Download Datasheet)
STANDARD TERMS & CONDITIONS:
NEW and ORIGINAL parts
Each unit prototype and individually tested from factory prior to shipping
Shipping world wide via FedEx, UPS, DHL, USPS, TNT
Same day shipping subject to previous sales
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