# Transformer hum ## Overview The characteristic 50/60 Hz acoustic noise emitted by power transformers. ## Acoustics bridge Grid acoustics, turbine monitoring ## Hub connections ### Engineering Center of Excellence Secondary acoustic application context (to be developed). ### Advanced Manufacturing Center of Excellence Secondary acoustic application context (to be developed). ### Transportation Center of Excellence Secondary acoustic application context (to be developed). ### Energy Center of Excellence (primary) This article bridges [[PORTAL_Acoustics]] to the [[WT!Energy_Center_of_Excellence]]. The acoustic signature of transformer hum is central to energy operations. ### IT Center of Excellence Secondary acoustic application context (to be developed). ### HealthForce Center of Excellence Secondary acoustic application context (to be developed). ### Northern Agricultural Center of Excellence Secondary acoustic application context (to be developed). ### Southern Agricultural Center of Excellence Secondary acoustic application context (to be developed). ### Space Mining In Minnesota — Center Circle Secondary acoustic application context (to be developed). --- *Bridge article, scaffolded from [[PORTAL_Acoustics]]. Minimal content; awaiting expansion.*