'Real' high-voltage motors

Large, high power ac induction and synchronous motors top out at 15 kV electrical input. My November 2004 article looks at innovation in this technology sector.

11/17/2004



ABB’s very high voltage motor (foreground) connects directly to an electrical grid, unlike a conventional motor that requires an intermediate transformer.

Large, high power ac induction and synchronous motors top out at 15 kV electrical input. My November 2004 article looks at innovation in this technology sector. As of this writing, one manufacturer has introduced ac synchronous motors working from input voltages up to 70 kV to cut power losses and obtain other benefits by direct connection to a utility distribution line. Others may be considering high voltage offerings.

The article highlights very high voltage (VHV) synchronous motors of 4- and 6-pole design, supplied by ABB Automation Technology Products AB of Sweden, which has two installations already in place in rugged industrial settings. A patented, innovative stator winding design is at the heart of this innovative development. A sidebar discusses what actually is "high voltage."

—Frank J. Bartos, executive editor, Control Engineering, fbartos@reedbusiness.com





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Sensor-to-cloud interoperability; PID and digital control efficiency; Alarm management system design; Automotive industry advances
Make Big Data and Industrial Internet of Things work for you, 2017 Engineers' Choice Finalists, Avoid control design pitfalls, Managing IIoT processes
Engineering Leaders Under 40; System integration improving packaging operation; Process sensing; PID velocity; Cybersecurity and functional safety
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

SCADA at the junction, Managing risk through maintenance, Moving at the speed of data
Flexible offshore fire protection; Big Data's impact on operations; Bridging the skills gap; Identifying security risks
The digital oilfield: Utilizing Big Data can yield big savings; Virtualization a real solution; Tracking SIS performance
click me