Title :
Turbine generator rotor turn insulation-Class F
Author :
Weddleton, R.F. ; Sismour, A.C.
Author_Institution :
Westinghouse Electr. Corp., Orlando, FL, USA
Abstract :
The qualification program for a new Class F rotor turn insulation system is described. The authors outline (1) the functional requirements for Class F rotor turn insulation for a Westinghouse large turbine generator, (2) laboratory screening tests to choose between available adhesives, (3) thermal aging tests to confirm Class F capability, (4) mechanical creep and abrasion tests and (5) factor verification trials. This effort led to the choice of a NEMA, G-11 epoxy glass laminate bonded to the copper conductor straps with a polyamide-epoxy adhesive film, which has been successfully introduced into production
Keywords :
adhesion; ageing; composite insulating materials; creep testing; glass fibre reinforced plastics; insulation testing; life testing; machine insulation; machine testing; organic insulating materials; rotors; turbogenerators; wear testing; Class-F insulation; Westinghouse large turbine generator; abrasion tests; adhesives; epoxy glass laminate; factor verification trials; functional requirements; laboratory screening tests; mechanical creep; polyamide-epoxy adhesive; qualification program; rotor turn insulation system; thermal aging tests; Aging; Conductive films; Creep; Glass; Insulation testing; Laminates; Qualifications; Rotors; Thermal factors; Turbines;
Conference_Titel :
Electrical Insulation, Conference Record of the 1992 IEEE International Symposium on
Conference_Location :
Baltimore, MD
Print_ISBN :
0-7803-0649-X
DOI :
10.1109/ELINSL.1992.246955
