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Engineered to satisfy the rigorous technical specifications of Colombian utilities (such as ISA, EPM, Enel Colombia, and Celsia), our primary transmission and substation transformers provide unmatched operational reliability and surge resilience.
Colombia represents one of Latin America's fastest-transforming electrical markets. Driven by the Energy Mining Planning Unit (UPME) expansion blueprints and ambitious non-conventional renewable energy (FNCER) targets, accurate instrument transformers are critical.
The Colombian National Interconnected System (Sistema Interconectado Nacional - SIN) relies on an extensive network ranging from 500kV and 230kV bulk transmission lines down to 115kV, 34.5kV, 13.8kV, and 4.16kV regional distribution grids. As the country shifts toward a more decentralized matrix, integrating massive solar photovoltaic farms in Cesar, Córdoba, and La Guajira alongside hydroelectric power plants in Antioquia and Santander, instrument transformers (Current Transformers and Potential / Voltage Transformers) serve as the vital sensory organs of the electrical network.
Current Transformers (CT) and Potential Transformers (PT) in Colombia must provide immaculate measurement accuracy for revenue metering (billing interchange between generators, traders, and network operators) and lightning-fast responsiveness for protective relaying (differential protection, overcurrent, distance, and ground-fault protection).
RETIE Mandatory Certification: All CTs and PTs imported and installed across Colombia must comply strictly with RETIE (Reglamento Técnico de Instalaciones Eléctricas), certifying rigorous dielectric tests, seismic withstand capabilities, non-flammability, and creepage performance under tropical conditions.
Colombia possesses an extraordinarily diverse geographical profile. Key consumption and industrial hubs like Bogotá D.C. sit at elevations exceeding 2,640 meters above sea level, while coastal facilities in Barranquilla, Cartagena, and Buenaventura face high ambient temperatures and heavy saline corrosion.
Standard IEC instrument transformers designed for sea level or below 1,000 meters suffer from air density derating when installed at Andean elevations. For Colombian high-altitude substations, our CT/PT designs feature enhanced external insulation creepage distances (≥ 31mm/kV or tailored for high pollution), specialized silicon rubber or porcelain bushings, and reinforced basic insulation levels (BIL) to avoid flashover during atmospheric overvoltages.
Meanwhile, for heavy humidity and coastal environments, vacuum-impregnated resin casting and hermetically sealed oil-immersed units prevent moisture ingress, oxidation, and partial discharge failure.
From utility-scale solar substations to underground mining complexes and smart urban distribution feeders, instrument transformers guarantee safety, dynamic control, and fiscal audit compliance.
Supplying primary current and voltage signals to numerical protection relays, SCADA RTUs, and digital fault recorders in 115kV/230kV/500kV substations operated by regional utilities across Cundinamarca, Antioquia, and Valle del Cauca.
Dedicated outdoor oil-immersed and dry cast-resin instrument transformers installed at medium-voltage collection points (34.5kV) and step-up transformer switchyards in Caribbean solar clusters, ensuring strict harmonic monitoring and grid compliance.
Ruggedized current transformers with transient-free cores and anti-vibration casings built for open-pit coal operations in Cesar and Guajira, gold extraction in Antioquia, and nickel processing plants in Córdoba.
Explosion-proof, flame-retardant, and hermetically isolated CT/PT units optimized for petrochemical complexes in Barrancabermeja and Cartagena, providing precise telemetry under severe operating thermal gradients.
Indoor epoxy resin dry-type CT/PTs integrated into compact AIS and GIS metal-clad switchgear for commercial complexes, data centers, and light industrial zones in Bogotá, Medellín, Cali, and Bucaramanga.
Multi-ratio, high-precision instrument transformers with 0.2S class accuracy under fluctuating load curves, certified for wholesale energy market (MEM) transactions managed by XM (Compañía Expertos en Mercados).
Review our comprehensive engineering parameters designed to exceed IEC 61869-1/2/3 and Colombian RETIE electrical standards.
| Equipment Category | Voltage Level (kV) | Accuracy Classes | Insulation & Dielectric Medium | Key Colombian Applications |
|---|---|---|---|---|
| Outdoor Oil-Immersed CT | 13.8kV – 230kV / 500kV | 0.2S, 0.5S, 5P20, 10P20 | High-grade mineral oil / Hermetic bellows | Transmission switchyards, Interconnection hubs, UPME grid expansions |
| Outdoor Inductive PT / VT | 34.5kV – 230kV | 0.2, 0.5, 3P, 6P | Capacitive / Inductive oil-paper | Main substation busbars, synchronizing circuits, high-voltage billing |
| Indoor Cast Resin MV CT/PT | 3.3kV – 36kV | 0.2S, 0.5, 5P10 | Cycloaliphatic Epoxy Resin (Q-class) | Switchgear panels, industrial substations in Bogotá and Medellín |
| Combined CT/PT Metering Units (MOF) | 13.8kV – 34.5kV | 0.2S Class Metering | Oil-immersed or Dry Polyurethane | Pole-mounted boundary fiscal metering, IPP renewable interconnects |
| Special Heavy Mining CT/PT | 6.6kV – 35kV | 0.5, 5P20 anti-saturation | Reinforced Anti-vibration Resin | Cerro Matoso, Drummond mining facilities, heavy arc furnace plants |
Quality excellence and customer satisfaction remain the core values that guide every aspect of XINSANHUAN’s business operations. Through strict quality assurance, reliable delivery schedules, and comprehensive after-sales support, the company has earned the trust and long-term cooperation of customers around the world. Its commitment to providing dependable products and professional services has established a strong reputation within the global power equipment industry.
Today, XINSANHUAN’s products are exported to more than 30 countries and regions worldwide. Its international footprint spans Europe, Central Asia, Southeast Asia, Africa, and Latin America, with successful projects completed in countries such as Russia, Kazakhstan, Uzbekistan, Kyrgyzstan, Ethiopia, Zambia, Tanzania, Mexico, Honduras, and many others. The company’s products are widely recognized for their excellent operational performance, high efficiency, durability, and adaptability to diverse climatic and grid conditions.
Looking toward the future, Hanzhong Xinsanhuan Transformer Co., Ltd. will continue to uphold its philosophy of integrity, innovation, quality, and customer focus. By leveraging its strong technical expertise, advanced manufacturing capabilities, and global market experience, the company is committed to building long-term partnerships with customers worldwide and contributing to the development of safe, efficient, and sustainable power infrastructure. Together with its partners, XINSANHUAN strives to create greater value and shape a brighter future for the global energy industry.
Browse our complete range of certified power transformers, grounding transformers, and specialized industrial equipment exported to Colombia and international utility networks.
