HU Sheng, LI Tienan, ZHOU Guandong, et al. The Comprehensive Treatment Technology for Low-Frequency Noise of Indoor Distribution Transformer[J]. 2017, 37(3): 36-38.
HU Sheng, LI Tienan, ZHOU Guandong, et al. The Comprehensive Treatment Technology for Low-Frequency Noise of Indoor Distribution Transformer[J]. 2017, 37(3): 36-38.DOI:
more and more attentions have been paid to the low-frequency noise caused by indoor distribution transformers. In order to solve the problem that the low-frequency noise of an indoor distribution transformer
the comprehensive control measures had been put forward based on the propagation characteristic of the low frequency noise
including changing low noise distribution transformer
equipping with shock absorber
optimizing the design of the transformer shield. Field application results showed that the A-weighted sound pressure level and that in octave bands of the residents’ home can meet the demands of noise emission limits
which means that the control measures have achieved good effects.