LSA 47.3

410 - 660 kVA

Leroy-Somer LSA 47.3

industrial alternator LSA 47.3

High performance and reliable industrial alternator for all types of generator sets

Power 410 - 660 kVA*
Voltage 220 - 480V
Poles 4
Speed 1500 - 1800 rpm
Shaft height 355 mm
Max efficiency 96.9 %
Excitation SHUNT / AREP / PMG
Regulation R250 / D350 / D550

* kVA/50Hz - kW/60Hz | Continuous / 40°C
(Discrepancies may occur, consult catalogue for exact figures)

Applications

Commercial application
Commercial
Industrial application
Industrial
Powerplant application
Powerplants
Marine application
Marine

Benefits

COMPACT
Opimized cooling system

HIGH RELIABILITY
Class H insulation

HIGH EFFICIENCY
Suited for prime applications
 

Downloads

  • Key features
    Insulation class H
    Winding pitch 2/3 (winding 6)
    Number of wires 12 (optional 6 wires) 
    Protection IP 23
    Altitude ≤ 1000 m
    Overspeed 2250 rpm
    Air flow 0.9 m3/s (50Hz) / 1.1m3/s(60Hz)
    Excitation system / AVR type SHUNT/R250 AREP or PMG/D350
    Voltage regulation (Steady state) ±0.5% SHUNT / ±0.25% AREP
    Short-circuit current (3 IN / 10 s) 300 % (3 IN) : 10s
  • Regulation
    Regulators R250 D350 D550
    Mains Paralleling - -
    3-phase sensing -
    Advanced settings -
    Data logging & monitoring -
    Remote communication -
    Remote voltage potentiometer
    CT for paralleling -
    R791 RFI suppression kit (standard in Europe)

    ● : Included             ○ : Option             - : Not available

  • Coupling
    Flex plate / Flange 1 1/2 0
    11 ½ - -
    14
    18 - -
  • Options
    • Other voltages available (specific windings).
    • Space heater.
    • Winding protection for harsh environments and relative humidity above 95%.
    • Specific cable outlet.
    • Temperature detectors.
    • Thermal protection for winding and shields.
    • Remote Voltage Trimmer.
    • Filters on air inlet: derating 5%.
    • IP 44 Filters on air inlet and air outlet : derating 10%.
    • Lower shaft height on demand.
    • Two bearing.
    • Customized painting.
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