I. Product Overview

The 10kV Oil‑immersed Transformer Is The Most Widely‑used Core Medium‑voltage Distribution Equipment In China With A Maximum System Voltage Of 12kV. It Is Designed And Manufactured In Strict Compliance With Standards Including GB1094, GB/T6451 And IEC 60076. Using Transformer Oil As Insulation And Cooling Medium, It Adopts Three‑phase Two‑winding Structure, Mainly Used For Voltage Transformation And Power Distribution In 10kV Distribution Networks. It Is Applicable To Various Terminal Power Supply Scenarios Such As Industry, Municipal Administration, Rural Areas And Industrial Parks.

II. Structural Composition

The Complete Unit Consists Of Core, Windings, Insulation System, Fully‑sealed Oil Tank, Heat Dissipation Structure And A Complete Set Of Protection Accessories. The Core Adopts High‑magnetism Cold‑rolled Grain‑oriented Silicon Steel Sheets With Neat Lamination And Ultra‑low Loss. The Windings Are Made Of High‑purity Oxygen‑free Copper Conductors With Neat Winding And Uniform Current Distribution. Equipped With High‑low Voltage Bushings, Tap‑changer, Temperature Protection And Pressure Relief Device, The Overall Structure Is Stable With High Durability.

III. Cooling Modes

The Product Mainly Adopts ONAN (Oil Natural Air Natural) Cooling Structure Without Auxiliary Cooling Fans, And Heat Exchange Is Realized By Natural Oil Convection. The Equipment Has No Rotating Parts And Noise Sources With Extremely Low Failure Rate, Suitable For All‑weather Continuous Operation. Featuring Simple Installation And Commissioning, It Adapts To Most Distribution Working Conditions Such As Outdoor Sites, Box‑type Substations And Distribution Transformer Areas.

IV. High‑efficiency And Energy‑saving Features

The Product Covers Ultra‑low‑loss Energy‑saving Series Such As S13, S15 And S20. By Optimizing Core Magnetic Circuit, Winding Structure And Magnetic Shield Design, The No‑load Loss, Load Loss And No‑load Current Are Greatly Reduced. Its Energy‑efficiency Indicators Surpass National Standard Requirements With Remarkable Energy‑saving Effect In Long‑term Operation, Meeting The Demands Of Power Grid Loss‑reduction Renovation, Green Parks And Energy‑saving Building Supporting Projects.

V. Reliable Insulation Technology

The Active Part Adopts Integral Vacuum Drying And Vacuum Oil‑filling Processes To Completely Remove Internal Moisture And Air For Stable Insulation Performance. Cooperated With High‑strength Formed Insulation Parts, It Achieves Uniform Electric‑field Distribution And Very Low Partial Discharge Level. It Effectively Prevents Insulation Aging, Creepage And Breakdown To Ensure Long‑term Safe And Stable Operation Of The Equipment.

IX. Wide Range Of Application Scenarios

It Is Widely Applied In Power Distribution For Urban Residential Communities, Rural Power Grid Renovation, Industrial Parks, Commercial Complexes, Municipal Projects, Photovoltaic Low‑voltage Grid‑connection, Pump Station Rooms And Terminal Power Supply Of Industrial And Mining Workshops. Meanwhile, It Is Massively Matched With Prefabricated Box‑type Substations And Outdoor Distribution Transformer Substations. It Is The Main Power Transformation Equipment With The Largest Consumption And Strongest Versatility In Distribution Networks.