IEEE C57.136 : 2000
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
IEEE GUIDE FOR SOUND LEVEL ABATEMENT AND DETERMINATION FOR LIQUID-IMMERSED POWER TRANSFORMERS AND SHUNT REACTORS RATED OVER 500 KVA
10-17-2023
01-01-2000
1 Scope
2 References
3 Sources of sound
3.1 General characteristics
3.2 Transformers
3.3 Shunt reactors
3.4 Fans and pumps
4 Factors affecting sound levels in field operation
4.1 Load power factor
4.2 Loading beyond nameplate rating
4.3 Harmonics
4.4 DC magnetization
4.5 Resonances
5 Factory-installed sound abatement methods
5.1 Typical design methods for sound abatement
5.2 Other factory-installed sound abatement methods
6 Field-installed sound abatement methods
6.1 Typical field-installed sound abatement methods
6.2 Other field-installed sound abatement methods
7 Active sound cancellation
7.1 Sound cancellation on or near the tank
7.2 Other active sound cancellation techniques
8 Useful sound level information
8.1 Sound pressure level
8.2 Sound power level
8.3 A-weighting sound scale
8.4 Sound level calculations
Annex A (informative) Bibliography
Annex B (informative) Estimation of far-field transformer
sound levels
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