Nidec Leroy-Somer Holding - Experts & Thought Leaders

Nidec Leroy-Somer announces the launch of the LSA 47.3 industrial alternator with increased performance and an optimized cooling system. The LSA 47.3 offers increased efficiency and starting kVA over its predecessor, and also benefits from the implementation of the latest technologies developed by Nidec Leroy-Somer. Rated Power and Features The LSA 47.3 delivers a rated power between 410 and 660 kVA at 50 Hz (495 to 825 kVA at 60 Hz). The 660 kVA rating (825 kVA at 60 Hz) was previously held by the LSA 49.3. Thanks to the cooling circuit optimization, the LSA 47.3 is now able to reach this power node for prime and demanding applications. This is a significant benefit for generator set manufacturers as the same power is made available through a more compact machine. LSA 47.3 is fully interchangeable with the LSA 47.2 (shaft height and feet configuration) The LSA 47.3 alternator features a SHUNT excitation system with an R250 regulator as standard. An AREP auxiliary winding excitation system with a D350 digital regulator version is also available to improve transient performances and provide high overload capacities. A D550 digital regulator can also be used for grid-connected applications. A Permanent Magnet Generator (PMG) excitation system is also available as an option. The LSA 47.3 is fully interchangeable with the LSA 47.2 (shaft height and feet configuration), and can therefore be coupled with all diesel engines on the market for this power range. It is now available for orders. Power Nodes The LSA 47.3 offers the following power nodes: 410, 455, 500, 550, 600, 660 kVA at 50Hz 510, 570, 625, 690, 750, 825 kVA at 60Hz This alternator is optimized for prime and demanding applications such as marine and cogeneration. It offers an efficiency of up to 95.7% at cos φ 0.8, which ranks it among the best in the category. Authority Comment "The LSA 47.3 is an important step forward in our strategy to optimize our product range," said Wenbin Ding, low voltage range Product Manager. "The benefits of this new product are significant, with real improvements where it matters most: efficiency, power, and starting kVA. In addition, the optimized cooling system we implemented means that hot spots are reduced inside the machine. Ultimately this means better reliability and longer lifetime, which is essential for the applications all LSA alternators are built to support.” With the LSA 47.3 introduction, the LSA 47.2 will soon be retired from the market, as well as the LSA 49.3S4 (660 kVA).

The LSAH 42.3 is being released to complement the LSAH 44.3 released last year. It uses the same heat recovery system and features leading electrical and thermal efficiency values. Heat and electricity 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 applications of these gensets are residential and public buildings' central heating. Rate of Power 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. Due 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. Due 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. Provides high efficiency 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.

Nidec Leroy-Somer (Nidec Leroy-Somer Holding), the world specialist with a wealth of experience in drive solutions for industrial refrigeration, has for more than 40 years provided refrigeration professionals with its state-of-the-art and energy efficient motors, and speed drives to effectively enhance productivity of industrial refrigeration applications. IE5 synchronous PM motors Nidec Leroy-Somer’s latest development, the Dyneo+ range of IE5 synchronous reluctance permanent magnet (PM) motors, with rare earth free rotor, offer multiple advantages for driving screw compressors, piston compressors, circulation pumps and condensers, be it in terms of energy efficiency, performance or reliability. Companies that use industrial refrigeration equipment have long been aware of the impact that the power consumption of a refrigeration installation can have on both the energy bills and on the environment as a whole. Energy-saving electric motors The cold compressor, at the heart of the system, remains the most energy-hungry element The cold compressor, at the heart of the system, remains the most energy-hungry element, and can represent up to 80% of total power consumption. Electric motors, which are ubiquitous in the cold chain, constitute the main source of potential energy savings. Thanks to its expertise in the design and manufacture of industrial drive systems, Nidec Leroy-Somer offers a wide range of drive solutions at fixed or variable speed, providing significant energy savings on the refrigeration market. Dyneo+ synchronous reluctance PM motor In addition to these complete and well-established ranges for this sector, Nidec Leroy-Somer has just launched its new Dyneo+ synchronous reluctance PM motor, ranging from 11 to 500 kW, for speeds of up to 4500 rpm. Specially designed for variable speed, this motor offers an economic and ecological solution for the requirements of industrial refrigeration. To address the energy transition challenges, the European Parliament recently voted, on 8 October 2020, in favor of a new ambitious climate law targeting 60% reduction of greenhouse gas emissions by 2030, and climate neutrality by 2040. European Commission Regulation (EU) 2019/1781 As part of this approach, the latest Commission Regulation (EU) 2019/1781, applicable to electric motors and variable speed drives, defines and schedules increasingly stringent efficiency levels for machines sold in the European market. Every industry  and in particular, the most energy-intensive ones are affected by these developments, designed to help protect the environment, not least considering that the cost of electricity is likely to climb significantly in the years to come. IE5 Ultra-Premium efficiency level With its IE5 Ultra-Premium efficiency level, Dyneo+ has all it takes to rise to this energy challenge With its IE5 Ultra-Premium efficiency level, Dyneo+ from Nidec Leroy-Somer has all it takes to rise to this energy challenge, offering as it does substantive energy savings in real conditions of use over the course of the cycle, at variable speed and load, as is typical with industrial refrigeration, where needs fluctuate considerably according to season and production level. Thanks to its energy performance, the Dyneo+ solution makes it possible to significantly increase the COP (‘Coefficient of Performance’, expressed by the ratio between refrigeration capacity produced and power consumption) of a refrigeration unit. As well as helping to reduce the carbon footprint, the range offers a TCO (Total Cost of Ownership) among the lowest on the market, and for rapid return on investment, generally in less than one year. Optimization of the number of compressors Dyneo+ motors are designed to operate exclusively with a variable frequency drive, allowing them to adapt to the speed of the machine being run and improve its performance when operating in over speed. This provides the benefit of additional refrigeration capacity for a given device, thereby avoiding having to start up another compressor during a production peak. Moreover, the Dyneo+ solution enables optimization of the number of compressors for a given installation. Delivering precise speed and torque control in sensorless mode, it guarantees constant torque over extensive speed ranges, with no derating or forced ventilation. Based on magnetic synchronous reluctance technology Nidec Leroy-Somer has developed the Dyneo+ range based on the mechanical platform of its IMfinity induction motors, known for their robustness and reliability. The use of proven components makes these new motors extremely robust and long-lived by design, thereby limiting the risk of refrigeration system failure. What is more, Dyneo+ has been designed for ease of installation, simple setup and easy maintenance. Generating low rotor losses, the magnetic synchronous reluctance technology reduces maintenance costs Generating low rotor losses, the magnetic synchronous reluctance technology reduces maintenance costs, in particular by extending the lubrication intervals. Whether compact or IEC interchangeable, with aluminum or cast-iron housing, or in IP55 or IP23 version, these motors are as easy to fit in new machines as they are to retrofit in existing installations as part of an energy optimization project. Connected to Systemiz interactive app Dyneo+ is connected to the Systemiz interactive application, which provides a wide variety of digital services, including instantaneous access to all the product literature, and easy and intuitive drive setup by simply scanning the QR code on the nameplate. With its ‘Made in Europe’ and low carbon footprint credentials, the Dyneo+ motor is eligible for Energy Savings Certificates, also known as White Certificates, generating government aid through the energy savings made. This makes for easy financing, meaning considerably faster return on investment, on top of the accrued energy savings Optimized productivity of industrial refrigeration Environmental compliance, energy performance and top-notch reliability are some of the key features that ensure Dyneo+ motors represent a drive solution that are perfectly suited to the optimized productivity needs of industrial refrigeration processes.