Customized Single-Phase Liquid-Filled Pad-Mount Transformers from HEAKOR — Powering Grids from 5 kV to 500 kV

HEAKOR is pleased to announce the launch of our customized single-phase liquid-filled pad-mount transformers, engineered for applications ranging from 5 kV up to 500 kV. Designed for utilities, industrial clients, and large infrastructure projects, these transformers offer rugged reliability, world-class performance, and full compliance with international standards.

Key Features & Benefits

• Wide voltage range (5 kV - 500 kV): Our transformers cover low, medium, and high voltage classes, giving customers flexibility to match grid or substation requirements precisely.
• Liquid-filled (oil-immersed) cooling: Advanced mineral oil or optional high-performance insulating fluids ensure excellent thermal performance, longer lifespan, and stable operation even under high load or harsh ambient conditions.
• Robust pad-mount design: Fully enclosed, weatherproof, tamper-resistant constructions suitable for ground-level installations. Ideal for remote, urban, or outdoor environments where protection against weather, dust, and unauthorized access is essential.
• Custom engineering & options:
    • Primary & secondary voltages according to project specs
    • Copper or aluminum windings depending on performance, cost, and weight preferences
    • Special insulation, bushings, surge protection
    • Optional accessories like pressure relief, monitoring systems, terminal enclosures
• Certifications & standards compliance: All units are designed and manufactured to meet ISO quality management systems, ANSI/IEEE, CSA and IEC standards. UL or ETL listing can be provided where required for North American installations.
• Reliable shipping & packaging: Export-worthy packaging, secure crating, moisture protection, and safe transportation options ensure products arrive undamaged, whether by ocean freight, rail, or overland transport.

Applications

These pad-mount single-phase transformers are ideal for:

• Substations and power grid step-down applications
• Remote/off-grid areas and rural power supply
• Industrial plants requiring localized high voltage distribution
• Renewable energy sites (solar farms, wind farms) where high voltage single-phase systems are used
• Infrastructure projects, including bridges, railways, or mining operations

HEAKOR's advantage

• Over two decades of experience as a supplier to China Southern Power Grid since 1999
• Modern 18,000 m² facility, strong R&D and production capabilities
• Multi-standard compliance (ISO, ANSI/IEEE, CSA, IEC, UL/ETL)
• Deep expertise in energy-saving solutions and transformer innovation

Call to Action

If you’re designing a project that requires a reliable 5 kV to 500 kV single-phase liquid-filled pad-mount transformer, contact HEAKOR today. We offer full customization, competitive pricing, and export support for global installations. Get in touch for a quote or technical consultation!