H‑Energy
H‑Energy (part of the NEC Group) has completed internal testing of a prototype sulfur hexafluoride (SF₆) inductive voltage transformer of the 110 kV class, designed in‑house. The development expands the company’s portfolio of instrument transformers and uses locally sourced components.
The project, completed in 52 weeks, required a full cycle of engineering and technological development. To launch the new product, H‑Energy specialists designed 32 original components, developed assembly tooling, and fine‑tuned production technologies. In parallel with the engineering work, the company added 14 new suppliers to its existing pool, which helped achieve a high degree of product localisation and reduce the assembly processes’ dependence on external contractors.
The first prototype has already confirmed the declared specifications during internal acceptance tests. Currently, the equipment is being prepared for the next stage – qualification tests, scheduled for Q2–Q3 2026.
The new product is designed for high‑voltage measurement in substations and switchgear. The use of sulfur hexafluoride insulation ensures explosion safety and reliable operation of the equipment under intensive use conditions.
The project, completed in 52 weeks, required a full cycle of engineering and technological development. To launch the new product, H‑Energy specialists designed 32 original components, developed assembly tooling, and fine‑tuned production technologies. In parallel with the engineering work, the company added 14 new suppliers to its existing pool, which helped achieve a high degree of product localisation and reduce the assembly processes’ dependence on external contractors.
The first prototype has already confirmed the declared specifications during internal acceptance tests. Currently, the equipment is being prepared for the next stage – qualification tests, scheduled for Q2–Q3 2026.
The new product is designed for high‑voltage measurement in substations and switchgear. The use of sulfur hexafluoride insulation ensures explosion safety and reliable operation of the equipment under intensive use conditions.
