GTXGN‑12/24 Series Solid‑insulated Ring Main Unit is a solid composite‑insulated main ring‑unit switchgear applied in medium‑voltage distribution networks. Within one power supply unit, phases A, B and C are composed of three independent modules, enabling multiple combinations for distribution networks. The composite‑insulated switchgear incorporates load‑break switches and circuit breakers with multiple operation modes including manual and electric operation. By optionally configuring FTU and other intelligent controllers and related devices, diversified control, measurement and protection functions can be realized.

Featuring flexible equipment combination, customers can deploy control devices and optional components by phases according to different investment stages. It delivers strong upgrade capability and cost‑effective investment. The operating mechanism for composite‑insulated load‑break switches and circuit breakers is a combination of independent fast‑make‑and‑fast‑break manual operating mechanism and mechanically‑driven motor closing/tripping mechanism. The electric operating mechanism of the load‑break switch stores energy electrically and releases energy directly for closing, hence maintaining the same simplicity and reliability as the manual mechanism under all working conditions.

This product complies with relevant provisions of GB3906, GB1984 and other standards.