Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support

Overview of Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support

Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support is an enclosed, ground-level electrical distribution transformer commonly used in underground (UG) power systems. It steps down primary high-voltage electricity (e.g., 15kV or 25kV) to a lower secondary voltage (e.g., 120/240V or 480V) for safe distribution to residential neighborhoods, commercial buildings, and industrial parks. Its robust, lockable steel enclosure makes it safe for public areas.

Features of Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support

Ground-Level Enclosure: A locked, tamper-resistant, weatherproof steel cabinet that protects the internal components and ensures public safety.

Underground Cable Connections: Designed for easy connection to underground primary (high-voltage) and secondary (low-voltage) cables via compartments with built-in bushings.

Compartmentalization: Separate, isolated compartments for high-voltage and low-voltage components, enhancing safety during maintenance.

Ventilation: Designed with louvers or other ventilation systems to allow for proper heat dissipation from the transformer core and coils.

Lifting Lugs: Integrated lifting lugs for easy and safe installation and replacement using a crane or hoist.

Tamper-proof Hardware: Lockable doors with special bolts to prevent unauthorized access.

Fused Switches: Often includes fused disconnect switches for circuit protection and safe isolation.

Pad Foundation: Installed on a concrete pad (“pad-mounted”) to provide a stable, level base.

Specifications of Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support

Our transformers cover medium and high voltage needs. They handle power from 3000KVA up to 10MVA. These units work with 33KV and 69KV systems. They are built tough for demanding jobs. You get reliable performance every day.

The core design uses oil insulation. This is proven technology. It gives good heat management. The cooling type is ONAN. This means oil circulates naturally. Air flows over the radiators naturally too. This system is simple. It is very dependable. It needs little maintenance. This keeps your costs down.

We build these transformers to your exact needs. Customization is standard. We adjust ratings, voltages, taps, and connections. Your specific site requirements are met. We focus on making the transformer fit your project perfectly.

Safety and quality are critical. We support full CE certification for your order. This confirms compliance with European standards. Our factory follows strict quality control. Every transformer undergoes thorough testing. You get consistent, high-quality products. They meet international regulations.

Materials are selected for durability. We use top-grade electrical steel. The oil is high-performance transformer oil. Windings are precision-made. This ensures efficient operation. Losses are minimized. Your energy costs stay lower. Long service life is expected.

These transformers are ready for industrial use. They suit power distribution networks. Factories, utilities, and large facilities use them. Installation is straightforward. Our team provides technical support. We help you get the transformer running smoothly.

Applications of Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support

These robust oil transformers handle 3000KVA to 10MVA power. They are built for medium and high voltage systems. Common voltages include 33KV and 69KV. They use ONAN cooling. This means oil and natural air flow cool the core and windings. No fans are needed. This makes them simple and reliable. They are tough. They work well in many demanding places.

Factories need stable power for big machines. These transformers deliver that. They step down voltage safely for heavy equipment. Mines and oil fields use them too. These places are harsh. Dust, heat, and vibration are common. These transformers handle it. They keep power flowing reliably.

Renewable energy projects rely on them. Wind farms and solar parks generate power far away. This power travels long distances. Transformers step up the voltage first. Higher voltage means less power loss over wires. Our transformers do this job well. They connect green energy to the grid.

Utilities need them for substations. Substations manage power flow across towns and cities. They step down voltage from transmission lines. Then they send power to homes and businesses. Our transformers are key parts here. They ensure safe, efficient power distribution.

Infrastructure projects use them. Think ports, airports, railways. These places need massive power. They need it for lights, systems, and operations. Our transformers provide the necessary capacity. They are built for continuous, heavy-duty service.

These transformers meet CE standards. This is important. It means they follow strict European safety rules. They are safe for people and the environment. They are built with quality materials. Careful design and testing happen. This ensures long life and minimal problems. You get a dependable product. It will work for years with little fuss.

We understand each project is different. So we offer customization. We adjust the design for your exact needs. Your specific voltage, power rating, or site condition matters. We can tailor the transformer. This gives you the perfect fit.

Company Profile

PDDN Photoelectron Technology Co., Ltd. is one of the leading enterprises in power electronics technology and power products, which is fully involved in developing solar inverters， transformers, voltage regulators, distribution cabinets, thyristors， modules， diodes， heaters, and other electronic devices or semiconductors. We will be committed to providing users with high-quality, efficient products and considerate service.

It accepts payment via Credit Card, T/T, West Union, and Paypal. PDDN will ship the goods to customers overseas through FedEx, DHL, by sea, or by air. If you want high-quality Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support, please send us inquiries; we will be here to help you.

Payment Methods

L/C, T/T, Western Union, Paypal, Credit Card etc.

Shipment

By sea, by air, by express, as customers request.

Storage Conditions

1) Store in a dry environment at room temperature.

2) Avoid damp and high temperature.

3) Use immediately after opening the inner packing bag.

5 FAQs of Basic 3000KVA~10MVA MV&HV Oil Transformer With 33KV 69KV Transformers ONAN Cooling Custom CE Certification Support

Basic 3000KVA~10MVA MV&HV Oil Transformer FAQs: 33KV, 69KV, ONAN Cooling, CE Certified

What power range do these transformers cover?
Our medium and high voltage oil transformers handle 3000KVA up to 10MVA. This range suits many industrial power needs. It covers smaller substations and larger facilities.

What voltages do they work with?
These transformers are built for 33kV and 69kV systems. They step down high transmission voltages. They make power safe for distribution networks. They handle tough grid conditions reliably.

How does the ONAN cooling work?
ONAN means Oil Natural Air Natural. The transformer core sits in oil. Heat rises naturally in the oil. The oil passes heat to the tank walls. Air flows naturally over the tank surface. This cools the oil. No pumps or fans are needed. It’s simple and dependable.

Is CE certification included?
Yes. Every transformer meets CE standards. We follow strict European safety and environmental rules. Certification proves the product is safe and reliable. We provide full certification support. You get the documents you need.

Can I get a custom transformer?
Absolutely. We offer custom designs. You need specific sizes or features? Tell us your requirements. We engineer solutions for your project. We tailor the transformer to your exact site and voltage needs. We work with your engineers.