The Switch solid-rotor technology extends the speed capabilities of standard induction electric motors, filling the existing gap for applications running below multi-megawatt powers. Typically, standard 2-pole induction motors reach speeds of 3,000–3,600 rpm and with a variable frequency drive (VFD), can reach speeds up to 4,500 rpm. In high-speed applications, a high-speed gearbox together with…
- All
- Blogs
- Events
- News
- Newsletters
- People stories
- References
Filter by topic:
- All
- Wind
- Marine
- Wave and Tidal
- Turbo
- CHP
- Energy storage
- Company
Filter by area:
Testing verifies safety of permanent magnet shaft generators
Jussi Puranen Safety is one of the biggest worries for shipowners and operators unfamiliar with PM technology. They want to know they’re protected from fault currents even when the magnetic field cannot be switched off. We at Yaskawa Environmental Energy / The Switch take all kinds of safety issues very seriously and have thoroughly examined…
Dimensioning the shaft line for a shaft generator or propulsion motor
Patrik Holm If you’re considering a shaft generator or propulsion motor for your vessel design, you already know you’ll be saving on fuel consumption, improving efficiency, and complying with the current EEDI and EEXI emission limits. With an electric machine on the shaft line, we face new considerations in shaft line dimensioning. The bearings in…
New test center verifies large marine electrical drives
Panu Kurronen Marine engineers, investors and builders are in a tight spot these days. There’s the pinch of approaching regulation deadlines and the stress of using new technology rather than familiar, well-tried equipment. We understand. Change is costly and stressful. We’ve been exploring and expanding PM machine technology for two decades, first for wind power…