Electrical power generation, alternators and drive systems manufacturer Leroy Somer’s alternators, available in Southern Africa from power generator supplier Vert Energy, ensure dependable electricity production in diverse industries, including the telecommunications sector.
According to Vert Energy MD Grant Robertson, low-voltage generators, fitted with alternators from the Leroy Somer range, offer reliable solutions that are specially adapted to back up base transceiver station (BTS) sites in the telecoms industry.
“Telecommunications plays an increasingly vital part in all aspects of commerce – particularly in data processing centres and BTSes – and requires absolute dependence on a reliable power supply. In the event of a power cut, backup generator units are used to ensure continuous and efficient operation of the network and can maintain power for several days.”
Robertson notes that the robust alternators ensure an uninterrupted power supply for the continuous reception and transmission of data, power to the computer and storage systems and power for the building’s lighting, air conditioning and safety systems.
He says that data centres house uninterrupted power supply systems that are sensitive to external interference. For this reason, the sizing and selection of the correctly specified alternator is critical.
Leroy Somer alternators, from 250 kVA to 3 250 kVA, are designed to meet the demands of data centres. The energy efficient alternators have low reactance and improved performance with distorting loads, as well as a greater starting capacity, and are capable of supporting high load variations.
“BTSes, with relay emitters, also require a continuous power supply to facilitate dependable radio access for cellphones in their coverage area. In the event of a power cut, one or more backup generator units are used and can maintain power for several days,” Robertson states.
Vert Energy also supplies Leroy Somer alternators to BTS relays, which range from 8.5 kVA to 80 kVA. These units have low reactance and reduced sensitivity to distorting loads.
Along with the alternators, the company also offers a variable direct current generator, designed especially for energy efficiency.
Robertson notes that the variable-speed option optimises fuel consumption, as the engine speed is reduced according to load requirements.
This ensures that maintenance charges and associated fuel delivery costs are also reduced. An additional benefit is the need for fewer components in the rectification from alternating current to direct current, as used in a traditional power generation system.
Along with the Leroy Somer alternators, Robertson reaffirms Vert Energy’s focus on renewable-energy sources to produce cleaner energy as a reliable source of electricity. This encompasses sustainable solutions for hydroelectricity and wind power, as well as for steam and gas turbines.
“Vert’s extensive range of power generation components for the production of hydroelectric power – the main source of clean electricity globally – includes low-, medium- and high- voltage Leroy Somer alternators,” he states.
Robertson adds that Leroy Somer alternators have also become critical components in harnessing energy in hydroelectric installations as they conform to stringent international quality and safety specifications.
The range, which is designed for horizontal or vertical mounting, also has Class H insulation with Class F or Class B temperature rise, speed rotation from 333 min–1 to 1 800 min–1 and voltages from 400 V to 15 kV. The alternators are based on a modular design and have power ratings between 1 MVA and 20 MVA, with standard components.
“These units withstand demanding operating conditions, including high overspeed and high axial or radial forces, and can be adapted and modified to suit different turbines,” he adds.
Roberts concludes that Vert Energy offers support in the form of assistance with inspections, diagnostics and repair procedures; reassembly, installation and commissioning, as well as the implementation of preventive and predictive maintenance programmes.
“Vert Energy offers a complete power generation solutions service to diverse sectors, including mining, marine, telecommunications, agriculture, municipalities, general industry and critical power applications,” concludes Robertson.