Photo credits
Equipment photos on this site are representative — licensed from the photographers below via Wikimedia Commons. Photos of the specific unit you're buying, including the nameplate, are provided with every quote.
"500kVA, 27.6 kV600Y347V Radial Feed Padmount Transformer" by MalexCV, licensed CC BY 4.0. Two crops; manufacturer plate blurred.
"Pad mount substation in Baltimore County, MD with cooling oil fins on side visible" by Middle river exports, licensed CC0 1.0. Cropped.
"Pont-l'Abbé high-voltage substation 14 - Transformer connections" by PtiBzh, licensed CC0 1.0. Cropped.
"Substation Power Transformer 1" by Yoshieslunchbox, licensed CC BY-SA 4.0. Full view and a radiator-bank crop of the same photograph.
"Gießharztransformator 400 kVA" by Rotkaeppchen68, licensed CC BY-SA 3.0. Cropped.
"4.16kV switchgear" by Rsparks3, licensed CC0 1.0.
"Siemens WL II 2500N air circuit breaker" by ToT89, licensed CC BY-SA 4.0.