Step-Up Transformers — From PV Array to Grid Connection

SCB (epoxy resin vacuum-cast) is the standard choice and fits most ground-mount and C&I rooftop PV step-up applications. SCBH uses an amorphous alloy core and is the better choice when minimizing no-load loss and no-load current over the life of the plant is the priority — the manufacturer's data shows theoretical efficiency gains of more than 70% over a conventional silicon-steel dry-type transformer of the same class.

The Split-Winding Dry-Type Transformer is the model the manufacturer specifically designates as suitable for new energy generation and energy storage power plant scenarios. Its multi-winding design lets independent branches carry separate loads or power sources and limits fault current between branches, which suits multi-inverter or multi-PCS collection points.

A standalone SCB/SCBH/split-winding transformer still needs separate high-voltage switchgear, low-voltage switchgear and control equipment on site. The YBW-NE pre-installed substation integrates all of that — switchgear, transformer and low-voltage equipment — into a single factory-tested enclosure, which shortens on-site installation time for PV and BESS projects.

An SCB or SCBH unit is the transformer only. The YBW-NE is a complete European-style box-type substation built specifically to take inverter output voltage and step it up to the grid-connection voltage required by the utility (10kV or 35kV), combining the transformer with high-voltage switchgear, low-voltage switchgear and auxiliary control equipment in one enclosure.

Yes. SCB and SCBH are general-purpose step-up distribution transformers suitable for PV plant collection points, while the split-winding model is explicitly suited to new energy generation and energy storage power plant scenarios, and the YBW-NE substation is designed around inverter/PCS output voltage regardless of whether the source is PV or battery storage.

SCB and SCBH dry-type transformers are manufactured at the 6kV and 10kV distribution class. The YBW-NE substation steps inverter output voltage up to 10kV or 35kV for grid connection. Confirm your exact project voltage requirement with your RFQ and we will match it to the correct model and winding configuration.