IEC 60034-14-2007 Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity

Language: English, French
International Standard IEC 60034-14 has been prepared by IEC technical committee 2: Rotating machinery.
This third edition cancels and replaces the second edition published in 1996. The significant technical changes with respect to the previous edition are:
a) reduced vibration levels of new machines during factory acceptance tests; the new levels are based on a combination of displacement, velocity and acceleration rather than only velocity;
b) the number of shaft-height ranges is reduced;
c) procedures for testing vertical motors have been reduced.
This consolidated version of IEC 60034-14 consists of the third edition (2003) [documents 2/1257/FDIS and 2/1273/RVD] and its amendment 1 (2007) [documents 2/1416/FDIS and 2/1429/RVD].
The technical content is therefore identical to the base edition and its amendments and has been prepared for user convenience.
It bears the edition number 3.1.
A vertical line in the margin shows where the base publication has been modified by amendment 1.Scope
This part of IEC 60034 specifies the factory acceptance vibration test procedures and vibration limits for certain electrical machines under specified conditions, when uncoupled from any load or prime mover.
It is applicable to d.c. and three-phase a.c. machines, with shaft heights 56 mm and higher and a rated output up to 50 MW, at operational speeds from 120 min–1 up to and including 15 000 min–1.
This standard is not applicable to machines mounted in situ, three-phase commutator motors, single-phase machines, three-phase machines operated on single-phase systems, vertical waterpower generators, turbine generators greater than 20 MW and machines with magnetic bearings or series-wound machines.
NOTE For machines measured in situ refer to applicable parts of ISO 10816 and ISO 7919.