CEI 14-45 : 2012
Current
The latest, up-to-date edition.
POWER TRANSFORMERS DETERMINATION OF SOUND LEVELS - APPLICATION GUIDE
Hardcopy , PDF
English
01-01-2012
FOREWORD
1 Scope
2 Normative references
3 Basic physics of sound
4 Sources and characteristics of transformer and reactor
sound
5 Measuring principles
6 Comparison of measuring methods
7 Practical aspects of making sound measurements
8 Difference between factory tests and field sound level
measurements
9 Specifying transformer and reactor sound levels
Annex A (informative) - Worked example: Power transformer
with cooling auxiliaries mounted on a separate
structure >3 m from the principal radiating surface
of the transformer - Sound power level determined
via sound pressure method
Annex B (informative) - Worked example: Distribution
transformer, sound power determined via
time-synchronous sound intensity method
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