Nidec Leroy-Somer LSAH 42.3 water-cooled generator
The LSAH 42.3 has been designed to be packaged into small natural gas generator sets built for combined
production of heat and electricity. The main application of these gensets are residential and public buildings
central heating.
The LSAH 42.3 delivers a rated power between 10 and 33 kVA at 50 Hz in continuous service (from 12.5 to
41 kVA at 60 Hz). The alternator is fitted as standard with an AREP excitation system and a D350 regulator.
Paralleling with the public network for the resale of electricity production surplus is also possible with a D550
AVR.
Thanks to its cooling and heat recovery system, the LSAH 42.3 offers premium performance, especially in
situations of intensive use:
- The electrical efficiency reaches 94% and generally remains above 90%. These unprecedented values help
increase the global energetic performance of the cogeneration system. - Thanks to the optimized cooling system, the lifespan of the machine is increased and allows continuous
operation of the system without any risk of failure due to hotspots. - Water cooling also allows the use of the LSAH 42.3 in non-ventilated – and silent – generator sets, making
their integration in buildings much easier with and without noise pollution for the neighborhood.
The general characteristics of alternators in the new LSAH range also make them suitable for other
applications where high efficiency, water cooling, low vibrations, low noise or continuous operation at high
temperature are needed. These requirements are typically found in traction, hoisting or marine applications.