RFL Alternator versus Kubota Alternator
A comparison on the Kubota D722 Diesel Engine (Kubota GL9000 GenSet)
Archive for month: July, 2016
RFL Alternator versus Stamford Alternator
A comparison on the Yanmar 4TNV88 Diesel Engine (Himoinsa HYW-17 Gen-Set).
Makinex
Generator sets need to tackle the demands of dusty worksites, harsh environmental conditions, remote locations, restricted access and have the capabilities to handle varying output requirements anywhere at any time. This is a tough ask and demand is growing as smart thinking tradespeople and contractors are being rewarded by utilising efficient processes and equipment, which […]
GenMark
No need to compromise, more power using less fuel When transporting perishable goods over land or sea, keeping the refrigeration unit operating at an optimal temperature to preserve the quality of perishable products across the supply chain, is vital. Failing to do so, will result in degradation and microbial growth increasing the risk of cross-border […]
Unbalanced Loads
For efficiency and maximum performance 3 phase alternators are the most common alternators on the market, however due to the very nature of the design they are required to work at a balanced load. Unfortunately, it is almost impossible and unrealistic to run 3 perfectly balanced loads. Any variation on any of the loads will cause unbalance in the alternator. An unbalanced load can cause a number of unwanted effects on a alternator which can in-turn affect the load.
Generator Paralleling
The world is becoming more reliant on electrical power. Electrical power is required for a primary source of energy, back-up systems, military deployment and disaster relief. As technology increases the power demand grows, and systems can-not afford to go offline.
This drives the requirement to have larger and more reliable generators. Larger generators become unpractical and a single point of failure is evident. RFL have developed Interior Permanent Magnet Generators (IPMG) that are designed to allows a series of generators to run in parallel.
Unbalanced Loading Behaviour
Abstract —Portable AC generators directly driving isolated AC loads require tight voltage regulation, good voltage waveform quality and high efficiency. This paper studies the performance of a 4 pole, 16 kW interior permanent-magnet generator under balanced 3ph and unbalanced 1ph resistive loading conditions. For the unbalanced 1ph condition, the use of star and delta winding connections is compared. The results of analytical and finite-element simulations have been compared with experimental results.
Parallel Operation of Small Interior Permanent Magnet Alternators
Summary
Small (kW range) portable AC generating units are used to drive isolated AC loads and normally consist of a diesel or petrol prime mover and a wound-field synchronous generator.
