Santej, Ahmedabad, Gujarat, India CE-Marked Transformers for Export
Serving OEMs & Projects Worldwide

DeliJia Three Phase Oil Immersed Transformer 50/60Hz Fully Sealed Low Noise For Power Plant Industrial Park

Product Description

S Series Power Transformer Overview
Transformer Engineering Details
Transformer Core Technology
Manufacturing Standards
Transformer Performance

Main Technical Parameters

NO Item Unit Value
1 Rated Capacity kVA 30~10000
2 Rated Voltage on the High Voltage Side kV 6~37
3 Rated Voltage on the Low Voltage Side kV 0.315~1.14
4 Rated Frequency Hz 50/60
5 Connection Group — Yyn0, Dyn11, Y(N)d11, Dd0 and so on
6 Insulation Level — A
7 Winding Temperature Rise/Oil Temperature Rise K 65/55
8 Cooling Method — ONAN/ONAF
9 Pressure Regulation Method — On load voltage regulation, no-load voltage regulation
10 Tapping Range — ±4*2.5%, ±2*2.5%
11 Impedance Voltage — ≤500KVA: 4% | 630~1600kVA: 4.5%~6% | 200~ZMKVA: 5%~
12 Rated Voltage kV 0.315~1.1
13 Rated Short-time Applied Withstand Voltage (1min) kV 5, 25, 35, 45, 55, 85
14 Peak Rated Lightning Impulse Withstand Voltage kV 60, 75, 105, 125, 200
15 Installation Method — Indoor and Outdoor

Product Introduction & Application Scope

Product Introduction: The S Series Power Transformer is a power device designed to meet the needs for high efficiency, energy saving, quiet operation, and high reliability. It is suitable for urban and rural power grids, industrial parks, and various complex power usage scenarios. This series adopts advanced processes and high-quality materials, offering excellent electrical performance while complying with the strict energy-saving and environmental protection requirements of modern power grids.

Application Scope: Widely used in urban and rural distribution systems, industrial and mining enterprises, rail transit, power plants, and other locations. It is especially suitable for areas with high requirements for energy savings and environmental protection. With stable performance and high reliability, this product is an ideal choice for optimizing and upgrading power systems.

1. Strong Environmental Adaptability

Capable of maintaining long-term stable operation under challenging conditions such as high temperature, high humidity, and high load rates, meeting the demands of peak loads.

2. Exquisite Design & Elegant Appearance

The product undergoes refined design and polishing, ensuring a long-lasting bright surface, excellent anti-corrosion performance, and suitability for harsh environments.

3. Exceptional Sealing Performance

Featuring a fully sealed structure design with high-performance acrylic sealing materials, each unit undergoes multiple positive and negative pressure leak tests before leaving the factory, ensuring reliable operation.

4. Safe & Environmentally Friendly Design

Manufactured with eco-friendly materials, the product is non-toxic and harmless during operation. In case of combustion, it produces low-smoke and non-corrosive emissions, ensuring safety for both the environment and equipment.

About Deepwill

Deepwill, formally known as Deepwill International Technology Development (Jiangsu) Co., Ltd., is an international company established by Deyun Electric Group to expand its presence in the global market. As the Group's gateway to overseas markets, Deepwill is supported by a professional international trade team and is committed to becoming a world-class provider of power distribution solutions. Deepwill specializes in the export of power distribution equipment up to 35kV, including but not limited to switchgear, GIS switchgear, ring main units, transformers, load break switches, reclosers, SVG systems, and prefabricated substations. Deepwill serves as a reliable bridge between manufacturers and overseas customers, providing comprehensive services that foster trust and win-win cooperation, while bringing high-quality and cost-effective Chinese products and solutions to the global market.

The group has multiple manufacturing subsidiaries, with its business scope covering seven major sectors: complete electrical equipment, power quality, smart electrical, transformers, general contracting and installation, new energy, and services. It offers more than 30 product series and hundreds of products, dedicated to the research, production, sales, installation, and service of a full range of solutions.

Company Facility Overview
Production Workshop
Manufacturing Equipment
Transformer Assembly Line
Testing Platform
Quality Inspection Center
Finished Product Storage
Logistics and Packaging

Frequently Asked Questions

Are you a manufacturer or a trading company?
DeepWill is a foreign trade company established by Deyun Group, which is one leading manufacturer of power distribution equipment in China for over 30 years. Deyun Group has been exporting products for decades.
How long is the warranty?
It depends on specific products. The average warranty is 1-3 years.
How does your factory control product quality?
Our QA department has a serious inspection standard and process ranging from raw materials to finished products. Each product must go through all necessary inspection and testing before shipment. We also welcome our clients to do onsite inspection.
Do you accept OEM order?
Yes, we do OEM for many customers.
What is the primary application scope of the S Series Power Transformer?
It is widely used in urban and rural distribution systems, industrial and mining enterprises, rail transit, and power plants, and is optimized for areas requiring strict energy savings and environmental standards.
What installation methods and cooling modes are supported?
The transformer supports both indoor and outdoor installations, and operates with ONAN/ONAF cooling methods.

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