Eco-Friendly Substation Topology & Marine-Grade Structural Durability for Global Projects

As a premier EPC-preferred manufacturer for international energy infrastructure, Yawei delivers advanced substation integration that optimizes structural cost-efficiency. On the 110kV high-voltage (HV) side, this project implements a highly compact Line-Transformer Unit Wiring Scheme, which slashes the physical footprint of the high-voltage switchyard and drastically lowers the initial civil engineering expenditures for the entire 120MW project.

To ensure streamlined operations and robust grid stability, this specific site application utilizes a robust 35kV Single Busbar Configuration on the medium-voltage (MV) collection side to safely step down and distribute the power. This topology layout successfully divides the renewable energy feeder circuits into isolated, independent protection blocks, allowing site operators to manage ongoing automated maintenance throughout the lifecycle of the project.

To withstand unforgiving fishery-solar (aqua-PV / floating solar) outdoor environments, all hermetically sealed 110kV/35kV transformer tanks are treated with premium multi-layer, marine-grade C5-M (very high corrosivity – marine) anti-corrosion coatings. This advanced material engineering fully repels extreme atmospheric moisture, persistent salt mist, and high humidity to guarantee zero-defect asset preservation for the project.

For global utility developers seeking to execute a completely decarbonized and sustainable electrical infrastructure project, our custom step-up transformers can be factory-filled with eco-friendly, biodegradable FR3 vegetable oil or synthetic esters. This sustainable configuration delivers vastly enhanced fire safety and eliminates environmental liabilities for the project worldwide, fully integrated with SCADA-compatible monitoring nodes including Buchholz relays, sudden pressure relief devices (PRD), and digital winding/oil temperature indicators (WTI/OTI).