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Fábrica de transformadores en baño de aceite MIRON - Ingeniería de potencia en Argentina

Oil-filled Transformer
Manufacturing

With over 60 years of leadership, at MIRON we manufacture highly reliable oil-filled transformers. From distribution and power equipment to custom engineering projects, our solutions guarantee robustness against overvoltages and superior operational efficiency, meeting the most demanding standards of the global industry.
Proceso de ensamblado de aisladores en transformadores de distribución MIRON
Transformers types:
Línea de producción de transformadores de media tensión y distribución MIRON

Distribution Transformers

Distribution transformers are electrical devices designed to step down voltage from power transmission systems to lower levels suitable for residential, commercial, and industrial applications. These transformers distribute electricity from medium-voltage networks to low-voltage levels, ensuring safe and efficient delivery to end users.

Technical Specifications

  • Power ratings from 63 kVA up to 2,500 kVA.
  • Nominal voltages: Medium Voltage from 13.2 kV to 33 kV; Low Voltage 0.4 – 0.23 kV.
  • Aluminum or copper windings.
  • Compliance with IRAM, IEC, and ANSI standards.
  • Available with expansion tank or hermetically sealed design
Transformador de potencia MIRON instalado en subestación eléctrica a la intemperie

Power Transformers

Power transformers are high-capacity units designed to transfer and transform energy within medium- to high-voltage transmission systems. Their primary function is to adjust voltage levels in transmission networks, enabling efficient power distribution over large areas and supplying industrial users or distribution substations.

Technical Specifications

  • Power ratings up to 120 MVA.
  • Tensiones Nominales de hasta 132 KV.
  • Copper windings.
  • Compliance with IRAM, IEC, and ANSI standards.
Transformador de distribución MIRON con tanque de expansión y radiadores de enfriamiento
Detalle de bornes de alta tensión y conmutador de un transformador en aceite

Special Purpose Transformers and Custom Engineering.

We design special transformers tailored to the specific needs of each industry and client, including high altitudes, extreme temperatures, and confined spaces. This is made possible by in-house design and manufacturing in Argentina, supported by a team of expert engineers ensuring high-quality solutions.

Types of Special Transformers:

  • Oil & Gas:
    Designed to withstand extreme conditions and the demanding requirements of the oil and gas sector, these transformers feature multiple taps and are suitable for operation with variable frequency drives, handling harmonics and DC components.

  • Mining:
    These transformers are built to withstand underground and outdoor environments with harsh conditions, including explosive atmospheres and climatic variations.

  • Submersible (Well-Type):
    Specifically designed for underground installations, these transformers are hermetically sealed, without an expansion tank, and are suitable for underwater operation.

  • Custom Engineering:
    We deliver tailor-made projects, meeting the most demanding requirements of each client.

Indicador visual de nivel de aceite y termómetro para transformadores industriales
Relé Buchholz y sistemas de protección para transformadores de potencia

Accessories and Protection Systems

We offer a complete range of accessories and protection systems to optimize the performance and safety of our transformers. These components are essential to ensure reliable operation and extend equipment lifespan under demanding conditions.

Available Accessories:

  • Buchholz Relay.
  • Thermometers (Dial and Stem Type).
  • Winding Temperature Indicator (WTI).
  • Zapatas y Bornes.
  • Silica Gel Breather.
  • Magnetic Oil Level Indicator.
  • RIS (Rapid Internal Pressure Rise System).
  • Terminal Box.
  • Pressure Relief Valve.
Servicio técnico y reparación de cubas para transformadores de potencia en Argentina

Technical Service and Transformer Repair in Argentina

At TRANSFORMADORES MIRON, we repair oil-filled transformers of all brands, both domestic and imported. All processes are carried out at our facilities in Argentina, combining advanced technology and expertise to ensure reliable and long-lasting equipment.

Frequently Asked Questions about Oil-Immersed Solutions.

TECHNICAL ASPECTS

What advantages do oil-immersed transformers offer compared to dry-type ones?
They are ideal for outdoor installations and highly polluted environments. Additionally, they typically have a more efficient thermal dissipation capacity at high power ratings and a more competitive initial cost.
How often should dielectric oil analysis be performed?
It is recommended to perform a physicochemical test annually to verify dielectric strength, moisture presence, and oxidation state, thereby ensuring the integrity of the internal insulation and extending the equipment's lifespan.
Do you comply with environmental safety regulations?
Yes, our equipment is designed under IRAM and IEC standards. Additionally, they can be configured to use biodegradable vegetable oils (natural esters) in areas with strict environmental requirements under ISO 14001 certification.
How is the oil level monitored in these transformers?
The level is monitored using visual or magnetic indicators placed on the expansion tank or on the main tank (in hermetically sealed transformers). This accessory allows for constant verification of the insulating liquid volume, which is essential for proper cooling.
What is the function of the air breather or silica gel dehydrating breather?
This accessory removes moisture from the air entering the transformer. It utilizes silica gel crystals that act as an indicator: the blue color signals they are dry, and the pink color indicates moisture saturation, warning that replacement is needed to protect the equipment's internal atmosphere.

QUOTES & MANUFACTURING

What information do I need to request a quote for an oil-filled transformer?
To quote an oil-filled transformer we need, at minimum: required power rating, primary and secondary voltage, frequency, and whether the installation is indoor or outdoor. Depending on the project, additional data such as connection group, insulation level, installation altitude, and accessories may also be needed. If you don't have all this information, our commercial and engineering team can advise you on the most suitable transformer for your installation.
Does MIRON manufacture custom oil-filled transformers?
Yes, we design and manufacture oil-filled transformers tailored to the power rating, voltage, dimensions, service conditions, accessories, and specific electrical configuration of each project. Our engineering team analyzes the operating conditions of each application, including projects for industry, mining, oil and gas, power generation, and infrastructure.
What technical standards do MIRON's oil-filled transformers meet?
They are designed and manufactured according to the technical standards applicable to each project, including national and international standards such as IRAM, IEC, and ANSI, in addition to specific requirements requested by the client or required by electric utilities. During design and manufacturing, the corresponding electrical, mechanical, thermal, and safety requirements are verified, performing the necessary tests to certify compliance.
How long does it take to manufacture an oil-filled transformer?
Manufacturing time generally ranges from 60 to 120 days, depending on the power rating, accessories, and degree of customization of the unit, as well as component availability and current production scheduling. Every MIRON quote includes the estimated delivery time for the requested unit.
Does MIRON offer oil-filled transformers with immediate delivery?
We may have certain transformers in stock for immediate delivery or reduced lead times, although availability varies depending on timing, power rating, and required electrical characteristics. We recommend contacting our sales team with your power rating, voltage, and application details.
Does MIRON repair oil-filled transformers from other brands?
Yes, we perform diagnostics, maintenance, and repair of oil-filled transformers manufactured by MIRON as well as other national or imported brands. The service is carried out at our facilities: the unit is transported to the MIRON plant for evaluation and repair. Before determining the scope of the repair, we perform a technical evaluation — inspections, electrical tests, oil analysis — and propose the most suitable alternative.
Certificación IRAM ISO 9001 Gestión de Calidad MIRON
Certificación IRAM ISO 14001 Gestión Ambiental MIRON
Certificación IRAM ISO 45001 Salud y Seguridad Ocupacional MIRON
Certificado IQNet International Management System MIRON

With over 60 years of experience and ISO 9001, 14001, and 45001 certifications, we guarantee reliable and efficient products, complying with the highest safety and environmental standards.

Contact Us

If you need more information about our services, please send us an inquiry.

Miron Contact Information

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