Patent · US Active

Method for starting a variable-speed electric motor

US9654030B2 · kind B2 · utility

1Cited by

5References

13Claims

0Family size

Assignee

KSB Aktiengesellschaft · DE

Inventors

Daniel Gontermann · Bischofswerda, DE
Jochen Schaab · Nieder-Olm, DE
Joachim Schullerer · Bischofswerda, DE
Manfred Oesterle · Hard, AT

Key dates

Filing date	Dec 6, 2013
Grant date	May 16, 2017
Priority date	—
Expiry date	Dec 6, 2033

Classification

Technology area (CPC H)Electricity
CPC primaryH02P21/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for starting a variable-speed electric motor, wherein upon detection of locking of the motor shaft a positive torque is applied to the motor shaft, and wherein the positive torque is continuously modified with different frequencies to overcome the locking.

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