Patent · US Active

Electrical machine with a restraint system for a rotor winding head

US8643248B2 · kind B2 · utility

0Cited by

5References

10Claims

0Family size

Assignee

Alstom Renewable Technologies · FR

Inventors

Alexander Schwery · Ittigen, CH
Serdar Cifyildiz · Winterthur, CH
Matthias Schmid · Baden, CH

Key dates

Filing date	Oct 18, 2011
Grant date	Feb 4, 2014
Priority date	—
Expiry date	Jan 9, 2032

Classification

Technology area (CPC H)Electricity
CPC primaryH02K3/51
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An electrical machine configured to operate in a power range of several MVA includes a rotor configured to rotate about an axis. The rotor includes a rotor winding disposed in a rotor lamination stack and having an exposed winding head outside of the rotor lamination stack. The winding head includes a winding head retention system having a plurality of radially oriented retention elements each including a locking device configured to secure a respective one of the retention elements against at least one of an unintentional loosening and a flying away in an event of a breakage.

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