Trafo Elettro transformers and electrical equipment

Technical selection and direct engineering review of Trafo Elettro power transformers, electric reactors, and replacement components according to project requirements.

Trafo Elettro dry-type resin encapsulated transformers

Trafo Elettro dry-type resin encapsulated transformers are engineered for demanding power distribution across hospitals, data centers, and infrastructure. Vacuum encapsulation protects high-voltage windings against heavy humidity, dust, and corrosive industrial atmospheres.

Power ratings up to 30 MVA with primary insulation voltage classes up to 52 kV
Full compliance with IEC 60076-11 environmental classes E3, C2, and fire class F1
Self-extinguishing resin technology eliminating hazardous fluid contamination risks
Minimal maintenance needs with robust resistance to thermal and mechanical shocks

Trafo Elettro oil-immersed power transformers

Trafo Elettro liquid filled transformers provide reliable power distribution for industrial plants and utility substations. Available in hermetically sealed tanks or conservator configurations, they ensure dependable operation in extreme weather and heavily polluted environments.

Power capacity reaching up to 50 MVA with voltage insulation ratings up to 145 kV
Hermetically sealed corrugated tank design preventing dielectric liquid oxidation
Conservator execution equipped with silica gel air breathers for heavy-duty grids
Protective paint systems and stainless steel hardware for superior marine defense

Trafo Elettro amorphous metal core transformers

Trafo Elettro amorphous alloy core transformers deliver superior electrical efficiency by drastically cutting core magnetization losses. Utilizing ultra-thin amorphous ribbons reduces operating temperatures, slows down insulation degradation, and optimizes power utility operating overhead.

Reduces no-load magnetization losses by up to 70% compared to silicon steel
Offered in both resin insulated dry-type and liquid filled tank configurations
Lower heat generation prolongs dielectric lifespan and boosts overall reliability
Meets strict EcoDesign Tier 2 efficiency mandates for smart industrial power grids

Trafo Elettro special industrial and converter units

Trafo Elettro engineers specialized custom transformer units tailored to complex industrial operations and demanding power electronics. The portfolio features furnace power supplies, high-pulse converter systems, and heavy-duty rectifiers capable of absorbing heavy harmonic distortions.

Multi-pulse configurations including 6, 12, 18, and 24 pulse converter circuits
Heavy furnace units engineered for electric arc and induction smelting plants
Reinforced mechanical bracing designed to withstand severe electrodynamic forces
Tailored busbar terminations and specialized water or forced air heat exchangers

Trafo Elettro industrial dry and liquid reactors

Trafo Elettro builds heavy-duty electric reactors in dry-type and liquid filled configurations to manage power flow and protect electrical equipment. Designed to restrict short-circuit currents, filter harmonic distortions, and stabilize power factors across transmission substations.

Current-limiting dry-type reactors with air-core or iron-core magnetic paths
Smoothing and harmonic filter units for industrial rectifiers and HVDC stations
High linearity maintained during peak transient overcurrent surge incidents
Low noise construction eliminating vibration wear across industrial installations

Trafo Elettro transformer spare parts and accessories

To support regular maintenance and field overhaul of Trafo Elettro units, a comprehensive range of electrical components is supplied. Includes high-voltage bushings, temperature sensors, Buchholz gas relays, de-energized tap changers, and chemical-resistant sealing gasket kits.

High-voltage porcelain and polymer through-wall bushings rated up to 145 kV
Double-float Buchholz safety relays providing early warning and trip signals
Precision platinum PT100 temperature probes and microprocessor control units
Oil-resistant NBR and Viton gasket overhaul kits plus silica gel air breathers

Thermal monitoring and PT100 temperature sensor diagnostics

Continuous monitoring of winding and magnetic core temperatures is vital for safeguarding Trafo Elettro electrical transformers against overload conditions.

Precision PT100 platinum resistance probes embedded directly within low-voltage winding ducts deliver real-time readings to digital temperature controllers.

Routine checks involve verifying loop integrity and verifying trip threshold settings to ensure rapid protection during emergency cooling shortfalls.

Tank sealing inspection and dielectric liquid maintenance

For liquid filled Trafo Elettro units, maintaining enclosure integrity prevents air and moisture penetration into the insulating fluid. Scheduled inspections monitor corrugated panel expansion, bushing flanges, and shutoff valves for signs of fluid weeping.

Routine dielectric breakdown testing and dissolved gas analysis provide early warnings of internal micro-arcing, thermal degradation, or aging of internal pressboard barriers.

De-energized tap changer inspection and operational protocol

Voltage ratio adjustments on Trafo Elettro distribution units are performed using manual off-circuit tap changers. Switching is strictly conducted after total electrical isolation and grounding of primary and secondary circuits.

Operators cycle the mechanism through all tap positions to scrub surface oxidation from contacts, followed by DC winding resistance measurements across all phases to verify low contact resistance and phase balance.

Buchholz gas relay inspection and safety validation

On conservator-equipped Trafo Elettro transformers, the Buchholz relay acts as the primary defense against internal winding breakdowns.

The dual-mechanism unit features an upper float to detect slow gas accumulation from localized thermal faults and a lower paddle triggered by rapid fluid surges during heavy faults.

Scheduled service involves mechanical float actuation via test ports and sampling accumulated gases for laboratory evaluation.

High-voltage bushing maintenance and insulation resistance testing

Terminal bushings withstand severe electrical gradients and industrial contaminants throughout daily operation. Maintenance protocols require cleaning porcelain or composite outer surfaces to prevent dielectric tracking and flashover.

Periodic insulation resistance measurements and dissipation factor evaluations provide definitive verification of dielectric health and remaining operational longevity.

Forced ventilation maintenance for dry resin transformers

When Trafo Elettro dry resin transformers operate with auxiliary cooling fans for peak power demand, unobstructed airflow through winding channels is essential. Routine servicing entails blowing dry compressed air through internal ventilation ducts to dislodge accumulated industrial particulate.

Technicians also verify fan motor bearings, anti-vibration mountings, and automated thermostat triggering circuits.

Trafo Elettro and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of Trafo Elettro and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.