Leave Your Message
High-reliability primary distribution apparatus engineered to meet the stringent technical specifications of SEC (Superintendencia de Electricidad y Combustibles) and Chilean grid operators.
Addressing the complex technical requirements of Chile's interconnected energy network, world-class copper mining operations, and expansive renewable projects in the Atacama Corridor.
Chile's unified Sistema Eléctrico Nacional (SEN) spans thousands of kilometers from Arica to Chiloé. Precise multi-ratio combined instrument transformers (CT-VT units or Medidores Combinados de Tensión y Corriente) are fundamental for tariff billing, point-of-common-coupling (PCC) metering, and high-speed feeder relay protection across 12kV, 24kV, 33kV, and 66kV nodes.
With the world's highest solar irradiance levels in the Atacama Desert and powerful coastal wind corridors in Coquimbo and Los Lagos, Chilean renewable plants demand robust combined metering units capable of sustained solar UV exposure, temperature differentials of ±35°C, and extreme ambient dust ingress.
Northern Chile houses global mining giants like CODELCO, Escondida, and Collahuasi. Combined CT-VT transformers operate at high altitudes (>4,000m) powering massive ball mills, solvent extraction-electrowinning (SX-EW) circuits, and heavy hauling systems where harmonic distortion and short-circuit withstand capacity are critical.
In Chile, equipment must strictly conform to regulations enforced by the Superintendencia de Electricidad y Combustibles (SEC) and the Coordinador Eléctrico Nacional (CEN). Our combined instrument transformers guarantee Class 0.2S and Class 0.5 revenue metering accuracy, verified via comprehensive routine and type-test reports.
Located on the Pacific Ring of Fire, Chile enforces the world's most demanding seismic codes. Our equipment features low-center-of-gravity structural bases, high-strength porcelain or hydrophobic cycloaliphatic epoxy (HCEP) insulators, and reinforced structural terminals designed to endure ground accelerations exceeding 0.5g.
High Andean elevations thin atmospheric air, reducing dielectric breakdown thresholds and cooling efficiency. We engineer extended creepage distances (>31mm/kV), increased internal clearance distances, and optimized thermal dissipation channels specifically for elevations up to 4,800 meters above sea level.
Combining primary current measurement (CT) and primary voltage stepping (VT) into a single compact tank or dry-type resin block reduces substation footprint, eliminates redundant cabling, and accelerates field installation.
Our Combined Current & Voltage Instrument Transformers (widely deployed across Latin America as Transformadores Combinados de Medida) represent state-of-the-art power measurement technology. Available in both oil-immersed hermetically sealed outdoor configurations and indoor/outdoor cast resin formats, each unit integrates two or three current transformer cores alongside two or three inductive voltage transformer windings.
| System Parameter | 12kV / 13.8kV Medium Voltage | 23kV / 34.5kV Sub-Transmission | 66kV / 110kV High Voltage |
|---|---|---|---|
| Applicable Grid Standards | IEC 61869-1/2/3/4, IEEE C57.13, SEC Chile | IEC 61869-1/2/3/4, IEEE C57.13, CEN Norms | IEC 61869-1/2/3/4, IEEE C57.13, NCh Standards |
| Accuracy Class (Metering / Protection) | 0.2S, 0.2, 0.5 / 5P20, 10P20 | 0.2S, 0.2 / 5P20, 10P20 | 0.2S, 0.1 / 5P20, 5P30, Transient TPY |
| CT Primary Current Rating | 5A up to 1200A (Single or Dual Ratio) | 10A up to 2000A (Multi-Ratio) | 50A up to 3000A (Multi-Core Independent) |
| VT Secondary Voltage Rating | 100V, 110V, 115V, 120V / √3 | 100V, 110V, 115V, 120V / √3 | 100V, 110V, 115V / √3 + Broken Delta |
| Insulation Medium | High-Grade Mineral Oil / Epoxy Resin (HCEP) | Hermetically Sealed Inhibited Mineral Oil | Ultra-Low Moisture Insulating Oil / Gas-Insulated |
| Creepage Distance (Pollution Class) | ≥ 31 mm/kV (Class IV / Very Heavy) | ≥ 31 mm/kV to 35 mm/kV (Desert Saline) | ≥ 35 mm/kV (High Altitude Coastal & Mining) |
| Seismic Withstand Capability | IEEE 693 High Performance Level (0.5g) | IEEE 693 High Performance Level (0.5g) | IEEE 693 High Performance Level (≥0.5g RRS) |
Pioneering advanced electrical transmission and distribution engineering with deep metallurgical expertise, precision automated winding, and full export logistics to South American markets.
Hanzhong Xinsanhuan Transformer Co., Ltd. is a professional transformer manufacturer located in Hanzhong City, Shaanxi Province, China—a renowned historical and cultural city known for its strategic geographical location at the heart of the country. Since its establishment, the company has been dedicated to the research, development, design, manufacturing, and service of high-quality power transmission and distribution equipment, providing reliable solutions to customers across domestic and international markets.
The company specializes in the production of power transformers up to 110kV, rectifier transformers, amorphous alloy transformers, oil-immersed distribution transformers, dry-type transformers, compact prefabricated substations, and other customized transformer solutions. With years of industry experience and continuous technological innovation, XINSANHUAN has developed a comprehensive product portfolio capable of meeting the diverse requirements of power utilities, industrial facilities, renewable energy projects, infrastructure developments, and commercial applications.
Every CT-VT unit and power transformer shipped to Chile undergoes end-to-end computerized testing, partial discharge analysis, and seismic stress simulation.
Equipped with computerized impulse voltage generators up to 800kV and automated partial discharge measurement suites ensuring noise levels under ≤ 5pC at 1.2 Um/√3, exceeding standard IEC 61869-1 criteria.
Individual calibration curves and ratio error / phase displacement tables are generated for each secondary winding (Class 0.2S / 0.5) to ensure zero-loss billing compliance across Chilean distribution concessions.
All export cargo destined for Puerto San Antonio, Puerto Valparaíso, or Iquique is crated with multi-layered moisture barriers, desiccants, nitrogen pressurization (for large units), and 3D shock-recording dataloggers.
To ensure the highest standards of product quality and performance, the company has invested heavily in advanced manufacturing equipment, modern production lines, and comprehensive testing facilities. Supported by a highly qualified engineering and technical team, XINSANHUAN maintains strict quality control throughout every stage of production, from design and raw material procurement to manufacturing, testing, and final delivery. The company’s robust research and development capabilities enable it to continuously improve product efficiency, reliability, and environmental performance in response to evolving market demands.
Internationally audited quality systems providing full traceability and technical transparency for EPC contractors, mining syndicates, and utility procurement boards in Chile.
Since 2006, Hanzhong Xinsanhuan Transformer Co., Ltd. has established a comprehensive management system and obtained a series of internationally recognized certifications, including ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification, and ISO 45001 Occupational Health and Safety Management System Certification. The company has also received Energy-Saving Product Certification and has been honored with the title of Green Factory, reflecting its commitment to sustainable manufacturing practices and environmental responsibility.
As a recognized High-Tech Enterprise, XINSANHUAN places strong emphasis on technological advancement and intellectual property development. The company has obtained numerous national patents covering product design, manufacturing processes, and technical innovations. In addition, its products have achieved CE certification, enabling compliance with European market requirements and facilitating exports to a broader international customer base. The company also holds independent import and export rights, ensuring efficient global trade operations and responsive customer service.
Tailored configurations delivering uninterrupted metering stability across extreme geography from northern deserts to southern fjords.
Installed on 33kV MV collector buses connecting string inverters to step-up transformer substations. Equipped with UV-stabilized RTV silicone coatings and anti-sandstorm sealing to ensure zero dielectric breakdown amid 1,200 W/m² solar irradiance and fierce dust storms.
Serving heavy electrical loads in SAG mills, flotation cells, and leaching pumps. Designed with high dynamic thermal withstand ratings (up to 31.5kA / 3s) and anti-corrosive oil reservoirs resisting acidic sulfurous fumes and copper dust deposit.
Assisting distribution concessionaires (e.g., Santiago Metropolitan, Valparaíso, Biobío) in feeder loss audits and boundary metering. Dual 0.2S cores enable real-time telemetry interfacing with automated SCADA and billing management software.
Key technical insights on procurement, standards compliance, altitude factors, and logistics for Chilean electrical contractors and procurement managers.
Yes. In accordance with IEC 61869-1 and IEEE standards, altitude derating factors ($k_a$) are engineered directly into the external insulation profile. We increase the external clearance, expand creepage distance beyond 31mm/kV, and utilize specialized low-temperature, high-dielectric insulating fluids to guarantee full performance up to 4,800m altitude.
Every single unit is delivered with a comprehensive testing dossier including polarity check, ratio error and phase displacement calibration (at 1%, 5%, 20%, 100%, 120% rated current), power frequency dry withstand, and partial discharge test results compliant with Chilean SEC registration requirements.
Standard manufacturing cycle for customized CT-VT units is 25-35 days. Direct container freight from Qingdao/Shanghai to Valparaíso or San Antonio typically takes 28-35 days, with full container tracking and sea-freight shock logging provided.
Yes. We manufacture both 2-element V-connection (Aron connection for ungrounded or impedance-grounded 3-wire grids) and 3-element Y-connection (for solidly grounded 4-wire distribution grids) with dedicated secondary windings for both billing meters and protection relays.
Explore our complete export portfolio of high-efficiency distribution transformers, high-voltage power transformers, neutral grounding resistors, and specialized low-temperature units.
Request comprehensive datasheets, bilingual engineering drawings, and factory direct quotes customized for your Chilean utility, mining, or EPC substation project.