EC Insulator Jiangxi Co., Ltd. is one of the most reliable manufacturers and suppliers of oil distribution transformer in China. With abundant experience, we are committed to offering high quality custom service. Please feel free to wholesale premium oil distribution transformer made in China here from our factory.
Product Description
The oil distribution transformer uses insulating oil as insulation and cooling medium, achieving voltage conversion by electromagnetic induction.
It is composed of silicon steel core, windings, tank and insulating oil. Featuring mature technology, good heat dissipation and strong overload capability. The series includes conventional oil immersed type and hermetically sealed oil filled transformer.
This transformer runs stably with low noise and high cost performance, widely used for urban and rural power distribution. It is manufactured and tested in accordance with relevant IEC and GB standards.
Oil Distribution Transformer – Product Details & Core Strengths
Compliance Standards
All our distribution transformers follow unified specifications through design, production and full delivery inspection.
International Standards
IEC 60076 Series: General specifications for power transformers
IEC 60296: Rules for mineral insulating oil used in electrical equipment
National Standards of China
GB/T 1094 Series
GB/T 6451
Main Application Scenarios
Urban and rural public power distribution networks
Residential districts, commercial plazas and shopping complexes
Factories, industrial zones and mining operation areas
Photovoltaic power plants and other new energy power supply systems
Municipal infrastructure, street lighting and outdoor box substations
Temporary power supply for construction work sites
1. Core Frame Design
1.1 Core Raw Material
We use high-permeability grain-oriented silicon steel sheets with ultra-low power loss. This material greatly cuts idle power waste and lifts overall energy efficiency in daily running.
1.2 Stacking Layout
The core adopts stepped interleaved stacking. This layout weakens magnetic leakage and eddy current loss, and effectively lowers running noise. The whole core surface is coated with heat-resistant insulating paint.
1.3 Fixed Clamping Frame
A full-set rigid clamping frame locks the core firmly. It avoids loose parts and vibration during years of continuous work, keeping consistent magnetic circuit and sturdy mechanical strength.
2. Built-in Safety Protection
2.1 Oil Leakage Prevention & Sealing
The transformer tank is fully seamless welded. Optimized sealing structure largely reduces oil seepage risks and guarantees steady outdoor service for years.
2.2 Real-Time Overheat Alarm
Temperature sensors can be mounted on the tank to monitor oil temperature all the time. Once overheating occurs, the system will send alarm signals or cut off power automatically to protect coil insulation.
2.3 Overload & Short-Circuit Protection
Customers can add matched protective components as needed. These accessories defend the unit against overload and sudden short-circuit faults to stop equipment burnout.
2.4 Reliable Grounding Safety
Standard grounding lugs are pre-reserved on the tank shell. Stable grounding removes induced overvoltage hazards and raises overall running safety.
3. Basic Technical Specifications
3.1 Rated Capacity
We supply all common standard capacity sizes to match different power distribution loads. Special non-standard capacity can be customized per customer's drawing.
3.2 Rated Voltage
Multiple high-low voltage collocations are optional, compatible with different local grid voltage grades.
3.3 Power Loss & Energy Efficiency
Low-loss core and coil structure are adopted to cut both no-load and load power loss, saving electricity during long-time operation.
3.4 Insulation & Temperature Rise
The product meets standard insulation grades. The temperature rise of coils and internal oil stays within safe limits under full rated load.
3.5 Applicable Environment
It supports both indoor and outdoor installation, adapting to regular temperature and humidity for city and countryside power supply.
Product Competitive Advantages
Premium insulating oil acts as both isolation medium and cooling liquid. It balances internal temperature evenly and maintains stable dielectric strength for long safe operation.
Low-loss silicon steel core plus optimized winding layout reduces idle and load power waste, bringing obvious electricity-saving benefits for grid users.
Interleaved core stacking and full clamping frame restrain vibration and noise. The transformer keeps steady performance under long continuous load.
Tight sealed welded tank with solid shell structure works well outdoors, with good dustproof and moisture-proof performance for various complex sites.
Payment & Export Packing
- Payment Options
We provide multiple settlement methods for global buyers: T/T wire transfer, sight L/C. Flexible payment terms can be discussed for large bulk orders.
- Packing & Shipping
Each unit is fixed on export fumigated wooden pallets, equipped with shockproof padding to avoid collision and oil leakage during long ocean transit.
Frequently Asked Questions
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