Fully Sealed Oil-Immersed Distribution Transformer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting
• Phase: Three
• Model NO.: S13-M S11-M
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CNAS
• Usage: Single-phase Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Low Frequency
• Shape of Core: EE
• Brand: Dongliang
• Color: Grey or Optional
• Iron Core: New Silicon Steel Sheet
• Approval Company: ISO9001&CNAS
• Model Number: S13-M S11-M
• Transport Package: Wooden Case
• Specification: 10-35kv 30-25000kva
• Trademark: dongliang
• Origin: Zhejiang, China
• HS Code: 850421

Product Description

Product introduction

    Our three-phase oil-immersed power transformers, with a rated voltage range of 10-35kV, are the go-to solution for industries including petroleum, metallurgy, chemical, textile, and light industry, especially in environments with high dust concentrations. These transformers are designed to meet the rigorous demands of various enterprises, ensuring optimal performance and reliability.
Capacity Range 30-2500kVA

Our product is engineered for superior performance, featuring high efficiency, minimal energy loss, and remarkably low noise levels. It boasts excellent internal heat dissipation and robust anti-short circuit capabilities. With low no-load and load loss, this transformer promises dependable operation, extended lifespan, and a maintenance-free experience, making it a trustworthy component for your power needs.

This energy-saving, energy-efficient secondary-class oil-immersed transformer is a testament to our company's dedication to innovation. By leveraging new materials, cutting-edge technologies, and a blend of independent innovation with technology introduction, we have optimized and revolutionized the core and coil structures. This development significantly minimizes no-load loss and noise, showcasing the fruits of our self-developed products.

 

Oil-immersed transformers provide numerous benefits, including exceptional heat dissipation capabilities that ensure stable operation. These transformers are renowned for their excellent insulation and high reliability. They offer easy voltage adjustments, catering to diverse electrical requirements, while their matured technology and cost-effectiveness make them an ideal choice for various applications.

Iron Core: The core, constructed from high-permeability magnetic grain-oriented cold-rolled silicon steel sheets, represents a new generation of iron cores. The full oblique jointed iron core features a multi-stepped section design, ensuring uniformity across the iron yoke and the core itself, enhancing efficiency and performance.

Winding: Our windings utilize corrugated oil passages and a no immersion paint process, secured with a tightening belt for stability. The concentric coil design includes high-voltage windings with taps for precise voltage adjustments, accessible via a tap changer mounted on the box cover. This allows for seamless changes to the tap voltage post power supply interruption.

Safety Protection Device: Our transformers, ranging from 30-2000kVA, are equipped with safety features like a pressure relief valve. Additionally, a gas relay with alarm and trip terminals can be installed as per user requirements, enhancing safety and operational integrity.

Apply	Mines, oil fields, subways, power plants, schools, hospitals, commercial centers, high-rise buildings
Installation height	The altitude does exceed 1000m
The waveform of the power supply voltage	similar to a sine wave

Oil Temperature Measuring Device: Each transformer comes fitted with a glass thermometer in a tube holder, strategically positioned atop the oil tank, extending 120±10 mm into the oil. For transformers in the 1000-2000kVA range, an outdoor signal thermometer is included, providing accurate and reliable temperature monitoring.

We are a professional manufacturer with 32 years of rich expertise in electric equipment manufacturing, specializing in transformers (including dry-type and oil-immersed models), voltage stabilizers, regulators, switchgear, compact substations, frequency converters, and more. Our stringent quality control system ensures unparalleled safety and quality, earning us an esteemed reputation both domestically and internationally. Customer satisfaction remains our ultimate goal, and we are committed to delivering sincere, meticulous, and satisfactory services. We warmly invite you to visit our facility and forge a lasting partnership with us.
 

Product categories

Company Profile

 Founded in 1992, with a registered capital of 50 million RMB, Dongliang Electric co.,LTD.  enjoys about 30 years experience in MV transmission and distribution electrical equipment manufacture. We are specializing in the production of transformer (dry-type transformer, oil-immersed transformer,machine tool transformer, environmental protection transformer, control transformer, lighting lamp transformer etc.), voltage stabilizer, voltage regulator, switchgear,compact substation,frequency converter and other electric equipments products,. Zhejiang Dongliang Electric co.,LTD. is located in the famous "Electrical Appliance Capital of China". Yueqing city, Zhejiang Province, faces the shore of the East Sea and the Oujiang River in the south, and the "world beautiful" national scenic spot in the north. We stick to the principle of "quality first, service first,  continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective.  and has implemented a strict and complete quality control system to ensure quality and safety, so we enjoy a good reputation in this field and are favored by domestic and foreign customers, Customer satisfaction is our eternal pursuit, and we will continue to provide you with the most sincere, considerate and satisfactory service. Very welcome to visit our factory and establish a permanent partnership with us.

Company advantage

certificate

 

service

exhibition

Packaging & Shipping

Packing standard: Generally use strong wooden cases or container protection.
Q: Who are we?
A: We are transformer companyWith 32 Years Professional Transformer Production Experience, based in Zhejiang, China.
Q: Can your product be customerized?
A: Considering differences in voltage, frequency and other speciality of transformer product in different countries and regions,our product can be customerized according to your requirements.
Q: How about your after-sales servic?
A: Our company provides 20 years of after-sales quality guarantee.
More questions...... Feel free to contact you and you will get an immediate response