Abstract: Synchronous machines usually operate at constant speed in power systems. However, there are specific applications, such as the generators used in diesel-electric transmissions or Type 4 wind ...

Variable motorway speed limits have been in place in the United Kingdom on some routes for years now. Despite being controversial in some circles, these have clear benefits for modern motoring, as ...

An example of what variable speed limit signs look like above a highway in Washington. Courtesy of the Washington State Department of Transportation When icy conditions led to a 133-car pileup on ...

Using variable speed drives on pumps reduces parasitic energy loss, enables proper maintenance and lowers capital costs. This article examines a method for determining the optimal number and speed of ...

The idea is one of several being considered by Lancaster County officials in an effort to reduce the number of traffic fatalities and serious injuries on county roadways in the next 25 years. As part ...

Although there are substantial efficiency improvements to be gained through motor upgrades, even greater energy savings are possible when a high-efficiency motor is paired with a variable-speed drive.

Annuities can be a solid way to secure guaranteed income in retirement. However, they remain notoriously complex, particularly when it comes to comparing fees. Unlike ETFs or mutual funds, where fees ...

Rear-end crashes have plagued the Schuylkill Expressway for years. But new data from PennDOT suggests technology is making a difference in improving safety. In 2021, PennDOT installed dozens of ...

Ulstein Group has revealed details of a variable speed generator (VSG) designed to optimise power generation on vessels, dynamically adjusting its speed to match load requirements The first use of the ...

EL PASO, Texas (KTSM) — El Paso will be the first place in Texas to implement and activate a variable speed limit, the Texas Department of Transportation El Paso District said. The variable speed ...

Abstract: To improve the annual generation capacity and assure the operational reliability for variable-speed wind turbines (VSWTs), this article solves a challenging ...