Greef New Energy is a globally leading supplier specializing in wind, solar, and Permanent Magnet Generator (PMG) system solutions.
In recent years, we have frequently received feedback from new customers stating that generators purchased from other companies commonly have issues with false power ratings and struggle to reach their rated output power. Fortunately, based on their trust in us, these customers have chosen to purchase our permanent magnet generators instead.
The market for permanent magnet generators is plagued by inferior products being passed off as high-quality ones. According to statistics, over 90% of the generators provided by suppliers fail to meet their rated output power, and some even fall below 60% of their rated capacity. Many companies purchase our 60kW generators and then replace the nameplates with their own 100kW labels before selling them.
In one extreme case, a factory bought our 5kW generators but attached 10kW nameplates to them and sold to customers. Due to the lack of professional testing equipment and platforms, customers find it difficult to conduct actual tests on these generators. Therefore, these customers have essentially only paid for a high-power "nameplate."
# Same parameters -10KW 300RPM On nameplate
You can compare the weight of the generator, the weight of the generator in some factories is very light, and the power of the generator does not meet the requirements.
In the whole set of wind and hydraulic equipment, the price of the PMG accounts for 15%-20% of the whole set of equipment, if the generator power is less than 30%, it is equivalent to the overall wind turbine to pay more than 30% of the cost, the impact of insufficient generator power is too great. Some customers only see the purchase price of the generator, and ignore the huge loss caused by the insufficient power of the generator.
There are also some manufacturers in order to sell, for the sake of aesthetics, the production of PMG casing is very smooth, the outlet box is very small or no, the shaft is very thin, the shaft is not heat treated, the paint equipment is simple, the bearing is not oiled, in terms of customers they just pursue good looks, do not care about the most important heat dissipation problem of the generator, the reliability of the generator and the life of the generator will be very short.
# Permanent magnet generators damaged due to quality issues
Here, Qingdao Greef New Energy Equipment Co., Ltd. Our generators will never have the above problems, and in order to ensure the quality of the generators, we provide three years of after-sales service, and we can also provide system solutions like grid-tied, off-grid and hybrid system.
Our permanent magnet generators boast independent intellectual property rights, encompassing over 30 invention and utility model patents. During the design process, we employ finite element optimization techniques and a reasonable magnetic circuit structure, while fully considering factors such as generator heat dissipation, bearing stress, and lubrication.
# Replacing NdFeB magnets with Ferrite magnets
Our PMG utilize 42UH magnets, 180-degree copper wire, high-grade cold-rolled silicon steel sheets, H-grade insulation materials, a vacuum pressure impregnation process, and bearings from well-known brands. Furthermore, our company's generator testing station is an electric feedback and computer-automated data collection station manufactured by ABB, ensuring the highest product quality.
# GREEF use 100% & 180-degree cooper wires
Post time: Nov-13-2024