Project Overview
Project Type: Regional Substation & Industrial Power Supply Upgrade
Completion Date: March 2024
Location: North Rhine–Westphalia, Germany
Key Partners: E.ON Netz GmbH, Siemens Energy EPC Division
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Technical Solution
TSTYNICE supplied 110 kV / 20 kV oil-immersed power transformers and associated medium-voltage switchgear systems to modernize aging substations and support renewable energy integration from nearby wind farms.
Equipment Supplied:
6 × 110 kV/20 kV High-Voltage Power Transformers (Rated 40 MVA – 100 MVA)
2 × Auxiliary Transformers for station service (1 MVA each)
Complete protection and control cabinets (IEC 61850 compliant)
Key Features:
Low-loss core design for maximum efficiency (>99.5%)
OLTC (On-load Tap Changer) for precise voltage regulation
Forced oil & air cooling (ONAF) for stable operation under heavy loads
Eco-friendly mineral oil, compliant with EU REACH and IEC 60076
Digital monitoring system with real-time thermal and load tracking
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Project Impact
Operational Benefits:
Improved regional transmission reliability and grid stability
Enhanced voltage control and reduced fluctuation in industrial zones
Increased renewable energy accommodation capacity (≈ 150 MW wind input)
Economic & Environmental Impact:
12% reduction in transmission losses
Reduced carbon footprint through high-efficiency transformer design
Contributed to Germany’s Energiewende (Energy Transition) strategy
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Why TSTYNICE?
Proven expertise in 110 kV–220 kV substation solutions
Compliance with VDE 0532 / IEC 60076 / EN 50588 standards
Full turnkey capability — engineering, manufacturing, testing, and commissioning
Recognized partner for European grid modernization and green energy projects
