LSAH 42.3 Cogeneration
LSAH 42.3 - Cogeneration alternator | 10 - 41 kVA
10 to 33 kVA - 50 Hz / 12.5 to 41 kVA - 60 Hz
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Built to heat

The LSAH range of alternators has been designed to maximize efficiency of cogeneration installations.
Thanks to its specific built‐in coolant circuit, heat recovery is optimized and directly fed into the larger installation. LSAH alternators are also perfectly suited for continuous service connected to the national grid. The various design elements and construction features of LSAH machines make them highly performant and durable.

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: 82.2 dBA (IEC 60034-9)

Terminal box design

  • Remote voltage regulator
  • Terminal block for voltage reconnection
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)

 

 

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

● : Included             ○ : Option             - : Not available

  • 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
  • pH of water : 7<pH<8
  • Degree of protection: IP 44
  • Enclosed machine cooled by heat transfer fluid

Options:

  • Remote voltage potentiometer
  • Current transformer for parallel operation
  • AVR quick connector
  • Single-bearing configuration
  • Bearing sensors
  • Thermal protection for stator windings (PT100 sensors)
  • Shaft height: adapted on request