IEC 60034-14-2018 pdf free.Rotating electrical machines – Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher – Measurement, evaluation and limits of vibration severity.
This part of IEC 60034 specifies the factory acceptance vibration test procedures andvibration limits for certain electrical machines under specified conditions,when uncoupledfrom any load or prime mover.
lt is applicable to DC and three-phase AC machines,with shaft heights 56 mm and higher anda rated output up to 50 MW, at operational speeds from 120 min-1 up to and including15 000 min-1.
This document is not applicable to machines mounted in situ (on site), three-phasecommutator motors, single-phase machines, three-phase machines operated on single-phasesystems,vertical waterpower generators,turbine generators greater than 20 MW andmachines with magnetic bearings or series-wound machines.
NOTE For machines measured in situ, refer to applicable parts of ISo 20816,ISO 10816 and IlSo 7919.2Normative references
The following documents are referred to in the text in such a way that some or all of theircontent constitutes requirements of this document. For dated references,only the editioncited applies. For undated references, the latest edition of the referenced document (includingany amendments) applies.
IEC 60034-1,Rotating electrical machines – Part 1: Rating and performance
IEC 60034-7,Rotating electrical machines – Part 7: Classification of types of constructionsand mounting arrangements (IM Code)
ISO 2954,Mechanical vibration of rotating and reciprocating machinery – Requirements forinstruments for measuring vibration severity
ISO 10817-1,Rotating shaft vibration measuring systems – Part 1: Relative and absolutesensing of radial vibration from rotating shafts.
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4Measurement quantities
Measurement quantities are the vibration displacement and vibration velocity at the machinebearings and the relative shaft vibration displacement within or near to the machine bearings.
4.2Vibration magnitude
The criterion for the vibration magnitude at the machine bearings shall be the broadbandr.m.s. value of the vibration displacement in micrometres or the vibration velocity inmillimeters per second in the frequency range specified in Clause 5. The maximum value,determined at the prescribed measurement positions and prescribed measuring variable,according to this standard, characterizes the vibration magnitude of the machine.IEC 60034-14 pdf download.