Sectors
Grid connections that keep up with your energy project
From BESS to solar parks and e-charging hubs
Or call us directly +31 (0)85 760 7033 We speak EN · NL · DE Application
Built for renewable energy
Protrafo specializes in transformers for battery energy storage systems, solar parks, and e-charging infrastructure. Our units are skid-ready and engineered for fast, secure grid connection — from specification to energization.
Compact Cooling Fins
Designed for the charge/discharge cycles of battery storage, with compact cooling fins and an electromagnetic grounding shield as standard.
Skid-Ready Design
Skid-ready designs with plug-in bushings for fast, secure grid integration — engineered for 100% load operation in outdoor settings.
Reliable Grid Compliance
All units comply with IEC 60076 and meet local grid operator requirements, ensuring a smooth approval and energization process.
Full Outdoor Operation
Engineered for full outdoor operation and installed without delaying the grid connection date on your project timeline.
Direct contact
Prefer to talk to a specialist?
Call us and you speak directly with a transformer specialist — no call centres, no waiting queues.
Call us directly +31 (0)85 760 7033 ENNLDE We speak English, Dutch and German.
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Solutions
Battery Energy Storage
BESS projects demand transformers that handle cyclic charge/discharge loads, harmonic distortion from inverters, and the need for compact, outdoor-rated designs. Protrafo cast resin transformers are the industry-standard choice.
Designed for the charge/discharge cycles of battery storage, with compact cooling fins and an electromagnetic grounding shield as standard. Our units are skid-ready with plug-in bushings for fast, secure grid integration.
View cast resin transformers
Solutions
Solar Park Grid Connections
Solar parks need transformers that perform under continuous full-load conditions outdoors, integrate cleanly with string and central inverters, and ship on time to meet grid connection deadlines.
Protrafo oil-type and cast resin transformers are delivered skid-ready with standard pad-mount configurations and plug-in bushings, ready for rapid integration into your solar park grid connection without delays.
View oil-type transformers
Integrated skids
A complete BESS skid, built around your project
For battery storage we also build bespoke skids up to 8 MVA, engineered entirely to your project. A single galvanised base can carry the inverter, transformer and a weatherproof RMU — mounted, wired and factory-tested as one unit that arrives ready to place and connect on site.
Up to 8 MVA Inverter integration Integrated transformer Weatherproof RMU Field-ready
In the field
BESS & solar projects, delivered
Transformers engineered for renewable-energy sites — from battery storage projects to outdoor units with IP65 connection boxes and C4-H corrosion protection.
Assurance
Your Planning, Protected
Stock units and short production slots keep your grid connection date safe — with engineering support from specification to energization.
Our dedicated project team monitors your order from the first enquiry through final commissioning, ensuring no surprises when your grid connection deadline arrives.
Stock availability
Standard units ready for immediate dispatch
Short lead times
Fast-track production slots for urgent projects
Engineering support
From specification through to energization
On-time delivery
We keep your grid connection date safe
Case Study
45 MW solar park connected on time
Vattenfall Zonnepark 20 kV / 3.15 MVA, 8 units, 45 MW grid connection
Protrafo supplied 8 oil-type distribution transformers for Vattenfall's 45 MW solar park, completing the grid connection on schedule despite tight project timelines. Each unit was delivered pre-tested and ready for installation.
European Reach
With successful projects completed across Europe, Protrafo delivers proven expertise with a continental footprint.
About usWe needed cast-resin units for an indoor substation on a tight grid-connection deadline. They engineered to our exact impedance and shipped from European stock — energised on time.
Procurement Lead
Solar EPC contractor · Germany
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ISO 9001 IEC 60076 VCA Certified