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Submersible Transformers Underground Vault Installation 25 Kva 13.8KV To 120V 304 SS Oil-Immersed D

Oil Type Transformer
December 03, 2025
Category Connection: Oil Type Transformer
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Tags:
#Oil Type Transformer #Oil Immersed Distribution Transformer #Step Down Transformer
Brief: Stay tuned as we highlight the most important features and real-use results. In this video, we demonstrate the installation and operation of the 25 KVA submersible transformer designed for underground vaults. You'll see how its 304 stainless steel, oil-immersed construction ensures reliable performance in water-submerged environments, making it ideal for urban and high-traffic areas.
Related Product Features:
  • Designed for underground vault installation and temporary submersion in water.
  • Constructed with a durable 304 stainless steel tank for superior corrosion resistance.
  • Features a 25 KVA capacity, stepping down from 13.8KV to 120/240V.
  • Utilizes copper windings and Class E insulation for high efficiency and reliability.
  • Equipped with waterproof, fully sealed, and shielded high/low voltage wiring.
  • Operates with low noise levels (48 dBA) and a compact, space-saving design.
  • Includes safety features like pressure relief valves and fuse protection.
  • Meets DOE 2016 and ANSI/IEEE standards for performance and safety.
Faqs:
  • What is a submersible transformer and where is it typically used?
    A submersible transformer is an electrical transformer housed in a waterproof enclosure designed to be submerged in water. It is typically installed in underground vaults, pits, wells, or water-filled chambers, making it ideal for urban environments, streets, highways, bridges, tunnels, and other areas where space is limited and aesthetics are important.
  • What are the key advantages of using a submersible transformer?
    Submersible transformers are more compact and lighter than above-ground models, making them suitable for space-constrained locations. They operate with less noise and are visually unobtrusive, which is beneficial in urban landscapes, residential complexes, and commercial areas. Their waterproof and corrosion-resistant design ensures reliable performance even when temporarily submerged.
  • What safety and operational features does this transformer include?
    This transformer includes high and low voltage inlet/outlet lines that are waterproof, fully sealed, insulated, and shielded. It features a pressure relief valve, fuse protection, and is operated using an operating rod for safety. The 304 stainless steel tank provides corrosion resistance, and the design incorporates automatic drainage measures for the transformer cellar.
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