Method and device for starting motors in weak grids

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 9425713
APP PUB NO 20130214719A1
SERIAL NO

13879861

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Abstract

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Method and device for starting a motor (12) in weak grids, especially asynchronous motors, which motor after start-up is supplied by a supply grid (13). The device (11) includes a frequency converter (14), which is rated in relation to the size of the motor (12) and arranged to bring the motor (12) up in speed, arranged to synchronize output voltage with voltage from the supply grid (13), and arranged for connecting the motor (12) to the supply grid (13) after the voltage of the motor is synchronized with the voltage of the supply grid (13). The main object is to do this with as low costs as possible and in the most space-saving manner.

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Patent Owner(s)

Patent OwnerAddress
ROLLS-ROYCE MARINE AS POWER ELECTRIC SYSTEMS BERGENJANAFLATEN 28 P O BOX 80 GODVIK BERGEN N-5882

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Haugland, Torbjörn Bergen, NO 1 2

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