Project Overview
Project Type: Industrial Power Grid Expansion
Completion Date: August 2024
Location: Valencia & Zaragoza, Spain
Client: Regional Power Utility & Industrial Zone Authority
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Technical Solution
TSTYNICE supplied 18 sets of 115 kV oil-immersed power transformers to reinforce industrial and manufacturing power networks across Spain’s eastern corridor.
Equipment Supplied
▸ Model: S11-M-31500/115
▸ Quantity: 18 units
▸ Rated Capacity: 31.5 MVA each
▸ Voltage Class: 115 kV / 11 kV
▸ Cooling Type: ONAN/ONAF
▸ Insulation: Mineral oil, Class A
Key Features
High short-circuit withstand capability
Low noise (< 60 dB) and low loss design per IEC 60076
Online temperature and gas monitoring system
Seismic- and vibration-resistant tank design
IP55 protection for outdoor substations
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Project Execution
▸ Engineering, testing, and delivery completed within 6 months
▸ Coordinated factory acceptance test (FAT) with client engineers
▸ Supported turnkey integration with switchgear and SCADA system
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Operational Results
Grid reliability improved by 15 %
Transformer efficiency > 99.5 %
Reduced reactive losses and stabilized industrial feeder voltage
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Client Benefits
Strengthened power backbone for industrial parks
Reduced operational and maintenance costs
Ready for future renewable integration
