High-reliability low voltage step-up/down units and electronic matching transformers customized for Brazilian local grid anomalies.
The State of São Paulo, representing over 30% of Brazil’s national GDP, acts as the primary manufacturing, financial, and digital hub of South America. However, importing machinery and setting up high-power infrastructure across industrial zones like Greater ABC, Campinas, and Sorocaba poses significant electrical challenges. The regional grid distribution features variations in terminal voltages—with residential/commercial sectors operating on a mixed 127V/220V single-phase system, and industrial grids utilizing 220V, 380V, 440V, or 480V distribution networks.
To ensure zero downtime, precision CNC machinery, automotive assembly lines, plastic molding operations, and IT data centers in regions like Alphaville must rely on highly stable voltage conversion devices. Dynamic step-up and step-down autotransformers and isolation transformers mitigate transient line surges, impedance discrepancies, and systemic phase imbalances.
Many imported industrial systems are built according to European IEC norms (typically 400V/230V) or North American standards (typically 480V/277V or 208V/120V). Connecting these configurations directly to the Brazilian 380V/220V or 220V delta network without precise transformer matching can lead to:
As utility firms shift toward renewable grid ties, the global demand for step-up transformers (especially 10KV to 35KV distribution levels) has reached historic highs. Large-scale solar farms, wind farms, and lithium storage installations in South America require durable, weather-resistant outdoor power stations to handle grid synchronization.
Henan Pirooz Power Co., Ltd. benefits from a highly integrated copper, core steel (grain-oriented silicon steel sheets), and insulating material supply ecosystem in Central China. This proximity enables us to optimize core configuration designs, execute advanced vacuum pressure impregnation (VPI), and provide fast global shipping times.
Our oil-immersed transformers (such as S11, S13) feature fully sealed, corrugated-fin structures to prevent thermal expanding risks. For indoor sub-stations and high-rise commercial structures in downtown São Paulo, our cast resin dry-type transformers (such as SCB10, SCB13) deliver F-class or H-class flame-retardant performance.
Henan Pirooz Power Co., Ltd. operates state-of-the-art metal cutting, precision winding, and full-load transformer testing plants.
Henan Pirooz Power Co., Ltd. is a comprehensive electrical power equipment manufacturer integrating research and development, engineering design, production, sales, and after-sales service. The company specializes in customized solutions for power transformers and complete sets of transmission and distribution equipment, providing reliable and efficient electrical products for global energy infrastructure projects.
The company operates a modern manufacturing facility with a complete production system covering product design, precision machining, assembly, and full electrical testing. Equipped with advanced production lines and strict quality control procedures, Henan Pirooz Power Co., Ltd. ensures that all products meet international standards and customer-specific technical requirements, maintaining high performance, safety, and durability.
Its core product range includes 10kV–35kV oil-immersed power transformers (such as S11, S13, S14, and S20 series), dry-type transformers (including SCB10, SCB11, SCB13, and SCBH15 series), as well as on-load tap-changing transformers, rectifier transformers, and furnace transformers designed for specialized industrial applications. These products are widely used in power utilities and heavy industries requiring stable and efficient energy distribution.
In addition to transformers, the company also provides complete electrical system solutions, including high and low voltage switchgear, European-style compact substations, American-style pad-mounted substations, and underground distribution substations. These integrated solutions are widely applied in power grid construction, industrial manufacturing, mining, metallurgy, petrochemicals, transportation systems, and renewable energy projects.
With a growing international footprint, Henan Pirooz Power Co., Ltd. has exported its products to multiple countries and regions worldwide, building long-term partnerships across global energy markets. The company continues to expand its production capacity and technological capabilities to meet increasing international demand.
Looking ahead, the company is committed to innovation, energy efficiency, and smart manufacturing development. By continuously improving product performance and system integration capabilities, Henan Pirooz Power Co., Ltd. aims to become a globally recognized provider of advanced power equipment solutions, supporting the development of modern and sustainable energy infrastructure.
Medium and low voltage step-up/down units engineered for complex industrial automation, heavy metal works, and utility grids.
A professional review of grid configuration parameters and sourcing considerations for global electrical engineers operating in Brazil.
The Brazilian electrical grid is highly decentralized, and primary connection limits vary across states. For Greater São Paulo (served by Enel Distribuição São Paulo) and the interior (served by CPFL and Elektro), primary medium-voltage lines operate at 13.8 kV or 34.5 kV.
For low-voltage installations, three-phase configurations are typically configured in a 220V Delta (without neutral) or a 380V Wye/220V Star configuration (where 380V is phase-to-phase, and 220V is phase-to-neutral). This varies from other cities, such as Rio de Janeiro, where the low voltage level is 127V/220V. In industrial settings, our custom dry-type and oil-immersed transformers are essential to convert the domestic grid output into the 440V or 480V configurations required by heavy manufacturing machinery, CNC centers, and automated packaging systems.
When selecting low-voltage or medium-voltage transformers for São Paulo’s tropical environment, several factors must be considered:
Importing heavy electrical machinery to the State of São Paulo requires careful planning due to Brazilian customs procedures (Receita Federal) and strict technical compliance checks. Our logistical and engineering teams work together to simplify this process:
We provide comprehensive technical documentation, including CAD drawings, coil schematics, and factory type test certificates, which are essential for customs registration. Shipments destined for the Port of Santos are secured in seawater-resistant crates with integrated moisture-barrier bags to protect the core steel and coil structures during oceanic transit.
Technical clarifications on ordering, sizing, and importing custom step-up and step-down power transformers.
Pirooz Power