Underground transformers

Main application fields: sites with strict requirements on land area and height, densely loaded urban areas, underground utility tunnels, small pits, and urban underground utility corridors

Product Overview

product superiority

A highly adaptable product developed for densely loaded urban areas and special sites. This product integrates the transformer and auxiliary components, installed below the outdoor ground level, and can operate submerged in water for a certain period, providing distribution transformer functionality. With a small footprint and strong weatherproofing, it can be equipped with HV/LV cabinets on the ground, replacing traditional substations, and is suitable for underground utility tunnels, small pits, and urban underground utility corridors.

Product-related parameters

Capacity range: 30~2,500kVA
Rated voltage level: 10kV
Protection rating: Fully sealed
Power supply mode: supports terminal, ring main unit, and dual-source configurations.

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