Patent · US Active

PM line-start motor and switch-on method therefor

US10978967B2 · kind B2 · utility

0Cited by

4References

13Claims

0Family size

Assignee

KSB SE & Co. KGaA · DE

Inventors

Gerhard Huth · Stuttgart, DE
Hans-Georg Schirmer · Offenheim, DE

Key dates

Filing date	Nov 22, 2016
Grant date	Apr 13, 2021
Priority date	—
Expiry date	Dec 24, 2037

Classification

Technology area (CPC H)Electricity
CPC primaryH02P1/50
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A PM line-start motor, preferably motors having a power of at least 5 kW, and a switch-on method therefor are provided. The motor includes a rotor and a stator having a stator winding designed as a pole-reversible rotary field winding. With the aid of the pole-reversible rotary field winding, the regenerative braking torque generated during the asynchronous high-run operation can be avoided, preferably by use of a sequence controller to control the changeover of the pole-reversible rotary field winding in the run-up phase.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.