Solutions for cell towers power systems

The challenge

Cell towers around the globe are expected to sustain the cellular network in all conditions. This expectation can turn into a real challenge in remote locations or in areas of the world where grid reliability is questionable.

As a result, most BTS (Base Transceiver Stations) are equipped with generator sets, whose role is to provide emergency backup or to act as a prime power source.

In this context, genset optimization, including the efficiency and reliability of the alternator, is a key route to significant money savings.

Our solution: reliable, efficient alternators

Engineered with top-quality materials and carefully assembled at our productions sites, our alternators are designed to provide long-lasting power with top performances in critical areas

  • Low reactance, meaning high ability to cope with load distortion

  • High efficiency and output for a reduced footprint and lower fuel consumption

  • High startup capability to lower interruption times

Leroy-Somer has a proven track record of providing alternators that withstand the test of time and environmental constraints.


Leroy-Somer LSA 40 Leroy-Somer LSA 42.3 Leroy-Somer LSA 44.3
LSA 40 LSA 42.3 LSA 44.3


Increased performances with AREP excitation

Our patented AREP auxiliary winding excitation system is particularly relevant in the Telecom context, where it will improve the reliability of the cell tower power system. AREP-enabled systems can sustain longer standby periods than regular excitation setups, and have overall better performances.

AREP is available as an option on LSA 40, LSA 42, and LSA 44 products.

Leroy-Somer invented auxiliary winding technology 30 years ago, leading to a dramatic increase in performance and reliability on all product ranges: smaller footprint, increased resistance to short circuits, improved overload capacity, longer standby cycles, and a cleaner, steadier power supply.



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