NAHU Electric Technology designs and manufactures current transformers, voltage transformers, and combined metering boxes engineered for reliability in the world's toughest grid environments.
The eight transformers and metering boxes buyers ask about most — each with published technical data, accuracy classes and dimension drawings.
NAHU Electric Technology is a vertically integrated manufacturer covering research and development, precision design, in-house production, and global sales of electrical metering equipment. Every unit that leaves our facility is built to add a measurable layer of assurance to the power grid it serves.
ISO 9001 and IEC-compliant manufacturing standards.
Exporting to utilities and integrators in 40+ countries.
Full design-to-production pipeline for rapid customization.
3,000+ substations and metering deployments equipped.
55 production models from 3 kV to 40.5 kV, each with full technical data and downloadable dimension drawings.
Every unit is routine-tested before it leaves our Wenzhou facility, and our manufacturing system is certified to give utilities and integrators confidence in every shipment — from a single sample order to a full substation rollout.
Quality management system covering design, production and final inspection.
Design and testing aligned with international instrument transformer standards.
Ratio, polarity and dielectric checks performed on every unit before dispatch.
Crated and documented for sea, air or rail freight to any destination.
From our Wenzhou factory, NAHU Electric equipment ships to utilities, EPC contractors and distributors in 40+ countries across five regions.
From a single epoxy-cast current transformer to a complete substation metering package — designed, tested and delivered under one roof since 2008.
Every metering instrument a substation needs.
ISO 9001, IEC- and GB-tested exports.
From prototype to full series.
3,000+ substations equipped worldwide.
Installation practice, product selection and the operating principles behind current and voltage transformers.
The step-by-step commissioning sequence our field engineers follow — mounting height, surge protection, phase sequence, …
Instrument transformers are the hubs of the grid and the safety barrier between high-voltage plant and the people workin…
Ratio, isolation, and why secondary outputs moved from amps to milliamps as metering went digital.…
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