Jacketing application is done by fixing the acoustic material combinations that are specially developed according to the frequency band of the transformer to the tank surface. Thus, sound reduction is achieved without loss of space and without the need for construction. Thanks to this application, sound reduction of up to 10-12 dB(A) can be achieved. A noise reduction guarantee is given in the beginning of all projects of PechoM.
Initially, the noise level was measured with a Class-1 frequency analyzer concerning IEC 60076 standard. In the second step, acoustic design was completed, and our engineers chose the materials to offer guaranteed noise reduction levels. The most important part of composite material selection was that selected materials directly implemented between stiffeners. There is no need to extend the transformer’s outer dimensions with this method.
When acoustic analyses showed a designated noise reduction rate, acoustic material implementation plans were created. In this step, material implementation around pipes, manholes, and radiator inlets and outlets was planned.
Materials produced and shaped for perfect implementation on the transformer. PechoM engineers supervised the team at the site during the assembly.
Finally, the final noise level was measured with the same standard performed at the beginning of the project. A noise reduction report was given to General Electric comparing initial and final noise measurements.
PechoM performs unique noise control engineering solutions for energy transformation equipment such as shunt reactors, and power and distribution transformers. These types of transformers generate low-frequency noise, which is hard to eliminate with traditional noise reduction methods.
By enabling the creation of quiet transformers, PechoM is your partner in delivering guaranteed acoustic solutions.
This text is taken from https://transformers-magazine.com/tm-news/pechom-completed-jacketing-project-with-general-electric/
