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

summary

A submersible distribution transformer is an electrical transformer housed in a waterproof metal or plastic enclosure and submerged in water. It is typically designed to supply power when installed in underground vaults, pits, wells, or water-filled chambers.

Product structure

Underground transformers are generally installed in pits constructed with concrete, without occupying surface space. High-voltage casing wells and low-voltage terminals, fuses, plug-in lightning arresters, and pressure relief valves are installed on underground transformers and box covers. These accessories can be observed and operated on the ground.

Main Data

Features

1. Suitable for urban environment (installed in basements or cellars), especially for densely populated central cities;
2. Suitable for lighting and power systems of streets, highways, bridges, tunnels, parking lots, airports, ports, tourist attractions, etc.;
3. High and low voltage inlet and outlet lines adopt waterproof, fully sealed, fully insulated, and fully shielded wiring methods;
4. The box shell is made of anti-corrosion steel plate or stainless steel, fully sealed, and can be immersed in water for a period of time;
5. The protection system fully considers the convenience and safety of operation;
6. The underground transformer is operated by an operating rod, which has the same operating mode as the combined transformer;
7. Taking full consideration of the particularity of heat dissipation conditions, the transformer adopts a low-loss and low-temperature design;
8. Waterproof ingress protection and automatic drainage measures are installed in the transformer cellar.

Advantages of Submersible transformers

• Submersible transformers are generally more compact and lighter than above-ground models, making them better suited for locations with limited space.
• Because they operate submerged in water, they produce less noise and are less visually obtrusive, which is advantageous where aesthetics matter.
• The combination of small footprint and low noise makes them ideal for urban landscapes, residential complexes, commercial areas, and other settings that require both discreet appearance and efficient use of space.

Specifications

Production process

WINLEY is located in Xiamen, China. We are specialized in manufacturing all kinds of transformers, voltage stabilizers, voltage regulators, etc. The products are widely used in industrial machinery, new energy, power generation, power supply, coal, metallurgy, petroleum, chemical, construction, port, airport, railway transportation, urban infrastructure, and other areas.

With more than 17 years experience, WINLEY always adhere to the route of "Integrity makes brand,quality wins the market"! We have a professional R&D team, a quality control team, scientific production management system and comprehensive customer service system.

WINLEY holds ISO 9001:2015 quality management system certification, All products have approved by CE certification, we can also apply for UL(Authorized by partner), SASO, SONCAP, etc. according to customer requirements.

WINLEY products are sold to Europe, North & South America, Oceania, Asia and Africa, more than 100 countries and regions in the world are using WINLEY products. Products’ quality and technical service are recognized by all customers around the world, and we have cooperative distributors in some countries.

And we will continue to carry forward the integrity of compliance, scientific and technological innovation, win-win cooperation spirit, provide quality products and comprehensive service to all partners, and work hard for the development of the world’s green electrical power.