{"id":1990,"date":"2026-06-18T16:44:20","date_gmt":"2026-06-18T08:44:20","guid":{"rendered":"https:\/\/tengyielectric.com\/?p=1990"},"modified":"2026-06-18T16:44:21","modified_gmt":"2026-06-18T08:44:21","slug":"earthing-transformer-for-nigerias-grid-upgrade","status":"publish","type":"post","link":"https:\/\/tengyielectric.com\/es\/earthing-transformer-for-nigerias-grid-upgrade\/","title":{"rendered":"Earthing Transformer for Nigeria’s Grid Upgrade"},"content":{"rendered":"
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Earthing Transformer and DC Power System for Nigeria’s Grid Upgrade<\/h2>\n\n<\/div>\n<\/div>\n<\/div>\n\n
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We’re excited to share the latest update from Nigeria. The earthing transformer and DC integrated power supply system Tengyi Electric built for Nigeria’s largest national grid operator are now off the production line and moving through pre-shipment testing, right on schedule.<\/p>\n\n\n\n

Project Location:<\/strong> Nigeria <\/p>\n\n\n\n

Client Industry:<\/strong> National Power Grid \/ Transmission Utility <\/p>\n\n\n\n

Project Scope:<\/strong> Substation earthing transformer + DC integrated power supply system, full package supply<\/p>\n\n\n\n

Antecedentes del proyecto<\/h3>\n\n\n\n

For Nigeria\u2019s grid upgrade, our client needs to enhance substation safety and protection reliability. They require an earthing transformer to establish system grounding and a DC power system to support critical control and communication. To ensure technical compatibility and simplify logistics, our client chooses an integrated “all-in-one” package. This approach guarantees that primary grounding and secondary protection work in perfect harmony, ensuring a reliable, site-ready solution.<\/p>\n\n\n\n

Approved Drawings<\/h3>\n\n\n
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In cross-border grid upgrades, ensuring new equipment seamlessly matches existing infrastructure is critical. This approved drawing directly addresses our client’s need for accurate advance site preparation by locking in exact weight data for foundation construction and specific CT parameters for relay protection compatibility. This process highlights our core advantage: rigorous custom engineering and proactive technical alignment. By resolving potential civil and electrical integration issues before manufacturing begins, we help clients completely eliminate the risks of on-site mismatches and costly rework, ensuring a smooth, plug-and-play installation overseas.<\/p>\n\n<\/div>\n\n\n

Manufacturing Highlights<\/h3>\n\n\n\n

1. Equipment Advantages<\/strong><\/strong><\/p>\n\n\n

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  • High-Spec Protection:<\/strong> The earthing transformer features 5P20 high-accuracy CTs and a full safety suite (gas relay, pressure relief valve, and oil level indicator).<\/li>\n\n\n\n
  • Intelligent DC System:<\/strong> Features an HMI touchscreen for real-time monitoring, surge protection (SPD), and modular cabinets designed for flexible battery capacities and tidy, labeled wiring.<\/li>\n<\/ul>\n\n<\/div>\n\n\n

    2.  Problem-Solving Capabilities<\/strong><\/strong><\/p>\n\n\n

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    • Challenge:<\/strong> Overseas projects often face installation delays caused by mismatched equipment bushings and site busbars, or compatibility issues between primary and secondary systems.<\/li>\n\n\n\n
    • Our Solution:<\/strong> We customized the transformer\u2019s bushing positions to align perfectly with existing site cables. By providing the primary (transformer) and secondary (DC system) as a unified package, we eliminated integration conflicts and ensured a zero-rework, plug-and-play installation.<\/li>\n<\/ul>\n\n<\/div>\n\n
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      Production and Quality Control<\/h3>\n\n\n\n

      Every earthing transformer goes through the oil-filling area for sealing and electrical testing once assembly is done. Every DC power cabinet gets powered up and run under full load before it ships, so we know the modules hold steady and every branch breaker does its job. Cabinets are built in matched sets and clearly numbered and so on \u2014 which makes phased installation a lot easier once they’re on site.<\/p>\n\n\n

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