A Case Study
As many car enthusiasts and tech heads would know - factory fitted isn't always best. The Kubota Lowboy GL series generators use Sawafuji Electric Company manufactured alternators as factory standard. They're very well built and reliable, and proven in Japan for a long time. However, the Sawafuji Alternators require a very high level of electronics and are extremely complicated in their design. Information on the alternators and other products from the company are limited due to the complex engineering and electronics on the product.
The alternators, and particularly the AVRs, have reported some failures under extreme weather conditions in Australia. Time and time again there has been a need to refit the alternators in case of failures with a much more reliable product. The main reasons for refitting include:
- High labour costs at times makes replacement of the Sawafuji alternators a much more viable option than repairing them.
- Sporadic availability of spares and electric components asks for products with minimal electronics and ease of maintenance.
- Rewinding a Sawafuji alternator in case of failures is very expensive.
- There is a lack of reliability in the alternators after rewinding.
RFL Alternators, in partnership with Macfarlane Generators, have the answers! The RFL RF2-12.5 Bi-Gen is a technologically advanced PM brushless alternator, offering the highest energy efficiencies while maintaining minimal physical size - setting a new industry standard. Its PM design brush-less internal magnetic voltage regulation (no AVR or electronics) means that possible points of failure are kept to a minimum by eliminating traditional brushes and AVRs. In other words - keep it simple stupid!
There were significant advantages when refitting a Kubota Lowboy GL 6000 with RFL alternators; the units registered 10% more power, 10-15% fuel savings, and much better THD levels.
About RFL Alternators
Based in Sydney, Australia, RFL Alternators Pty Ltd is a world class manufacturer of high quality permanent magnet alternators for the power generation industry. With over 25 years of investment into research and development, RFL prides itself in continuing to develop new and efficient cutting-edge technologies and products which are at industry's forefront, and manufactures alternators to the highest quality standards.