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Reduction of vibration noise for amorphous metal alloy core distribution transformer

Abstract

To understand the vibration noise behaviors of amorphous metal alloy core distribution transformer (AMACDT), a 10 kVA prototype was tested under no-load and short-circuit conditions, respectively.Brass Bar (C36800 C37000 C23000 C26800 C27000 C28000), and the primary side was connected with different load resistances. The largest amplitude positions on the upper bracket and tank surfaces were recorded by vibration sensors arranged on the surface. A data-acquisition platform was set up for signal measurement. The vibration amplitude related to frequency was discussed, and experimental results indicated that the position with the largest amplitude accrued in the middle of the upper bracket and tank surface, at phasesaandc, respectively.Blockless 1X4 Steel Tube Fiber Optic PLC Splitter. At the same time, some rib-reinforcements were welded on the upper bracket and tank surfaces to lessen the vibration energy, which reduced the noise.

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Additional information

Supported by the National Natural Science Foundation of China (No. 51277131)19m Outdoor Electronic Rechargeable Battery Powered P10 Full Color LED Message Display Board(“973” Program, No.2014CB239501 and No.2014CB239506).

Liu Daosheng, born in 1976, male, doctorate student.

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Liu, D., Du, B., Zhang, J.et al.Reduction of vibration noise for amorphous metal alloy core distribution transformer.Trans.220V Electric Motor 7.5kw/10HP Rotary 0.8MPa Air Compressor Machine.21,289–298 (2015). https://doi.org/10.1007/s12209-015-2551-4

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Keywords

  • distribution transformer
  • magnetostriction
  • electrodynamic force
  • amorphous metal core
  • vibration
  • noise transmission