LSAH 42.3

10 to 33 kVA - 50 Hz / 12.5 to 41 kVA - 60 Hz

LSAH 42.3 - Cogeneration alternator

LSAH 42.3 CogenerationStandards

Nidec Leroy-Somer LSAH 42.3 alternator meets all key international standards and regulations, including IEC 60034, NEMA MG 1.32-33, ISO 8528-3,
CSA C22.2 n°100-14 and UL 1446 (UL 1004 on request).
Also compliant with IEC 61000-6-2, IEC 61000-6-3, IEC 61000-6-4, VDE 0875G, VDE 0875N and EN 55011, group 1 class A for European zone.
Nidec Leroy-Somer LSAH 42.3 alternator can be integrated in EC marked generator set, and bears EC, EAC and CMIM markings.
It is designed, manufactured and marketed in an ISO 9001 and ISO 14001 quality assurance environment.

Electrical features & performances

  • Class H insulation
  • 2/3 pitch winding, standard 6-wire (6S) reconnectable
  • Voltage range:
    • 50 Hz: 400 V
    • 60 Hz: 480 V
    • Other voltages: consult us
  • High efficiency and motor starting capacity

Mechanical construction

  • Compact rigid assembly to better withstand generator vibrations
  • Steel frame and terminal box
  • Cast iron and aluminum flanges and shields
  • Two-bearing and single-bearing mounting
  • Half-key balancing
  • Greased for life ball bearings
  • Direction of rotation: clockwise and anti-clockwise (without derating)
  • Noise level: 84 dBA

Terminal box design

  • Remote voltage regulator
  • Terminal block for voltage reconnection

  • Key features
    Insulation class H
    Winding pitch 2/3 (wind. 6S)
    Number of wires 6
    Protection IP44
    Cooling - Code  Water - IC7A1W7
    Altitude ≤ 1000 m
    Overspeed 2250 R.P.M.
    Water flow 3 to 10 m3/h
    Excitation system

    AREP

    AVR type  D350
    Voltage regulation (Steady state) ± 0,25 %
    Short-circuit current  300 % (3IN) : 10s
    Total Harmonic Distortion THD (*) in no-load  < 2 %
    Total Harmonic Distortion THD (*) in linear load    < 4 % 
    Waveform: NEMA = TIF (*) < 50 %
    Waveform: I.E.C. = THF (*) < 1.5 %

    (*) Total harmonic distortion between phases, no-load or on-load (non-distorting)

  • Regulation
    Regulators D350 D550
    AREP
    Mains Paralleling -
    3-phase sensing
    Remote voltage potentiometer
    Current transformer for paralleling        

    ● : Included             ○ : Option             - : Not available

  • Protection system & options
    • Designed for an operating environment up to 80°C and a maximum cooling liquid temperature of 75°C
    • Water flow: 3 to 10 m3/h
    • Degree of protection: IP 44
    • Enclosed machine cooled by heat transfer fluid

    Options:

    • Bearing sensors
    • Thermal protection for stator windings (PT100 sensors)
    • Shaft height: adapted on request
  • Downloads
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