IEC 60034-15-2009 Rotating electrical machines. Part 15: Impulse voltage withstand levels of form-wound stator coils for rotating a.c. machines

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International Standard IEC 60034-15 has been prepared by IEC technical committee 2: Rotating machinery.
This third edition cancels and replaces the second edition published in 1995 and constitutes a technical revision. The principal technical changes are as follows.
Change of title to clarify that it is form-wound coils that are being tested rather than machines.
Removal of the limitation on voltage in the Scope.
Additional definitions for consistency with IEC 60060-1.
Reduction in tolerances for the risetime of the steep-fronted impulse voltage.
Guidance on test levels for coils to be used in converter driven machines.
Guidance on voltage levels for routine tests.
Additional figures to show testing details and oscillograms of normal and faulty coils.Scope
This part of IEC 60034 relates to a.c. machines incorporating form-wound stator coils. It specifies the test procedures and voltages to be applied to the main and interturn insulation of sample coils.