ISO9001 Approved Transformer with Fully Sealed Design and High Efficiency

• 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
• Package Size: 225.00cm * 400.00cm * 270.00cm
• Package Gross Weight: 25.000kg

Product Description

Product introduction

Our esteemed three-phase oil-immersed power transformers are meticulously engineered for a rated voltage range of 10-35kV, presenting the quintessential solution for a diverse spectrum of industries, including petroleum, metallurgy, chemical, textile, and light industry. These transformers are the epitome of excellence, thriving in challenging environments laden with high dust concentrations. They offer unmatched performance and steadfast reliability, tailored to meet the rigorous demands of enterprises seeking superior power solutions.
Capacity Range 30-2500kVA

Crafted to achieve superior excellence, our product sets a new benchmark in high efficiency, with minimized energy loss and impressively low noise levels. It boasts extraordinary internal heat dissipation and robust anti-short circuit capabilities. With its minimal no-load and load loss attributes, this transformer assures consistent dependable operation, extended lifespan, and a truly maintenance-free experience, making it an indispensable asset for your power solutions.

This state-of-the-art energy-saving, energy-efficient secondary-class oil-immersed transformer epitomizes our dedication to innovation. By seamlessly integrating cutting-edge materials, revolutionary technologies, and a harmonious blend of independent innovation with technology adoption, we have revolutionized the core and coil structures. This pioneering advancement significantly curtails no-load loss and noise, showcasing the remarkable results of our self-developed products.

 

Oil-immersed transformers offer an expansive suite of advantages, including exceptional heat dissipation capabilities that guarantee consistent and stable operation. Celebrated for their outstanding insulation and high reliability, these transformers facilitate effortless voltage adjustments to accommodate a wide array of electrical needs. Their mature technology and cost-effectiveness establish them as the quintessential choice for numerous applications.

Iron Core: Our pioneering iron core, crafted from high-permeability magnetic grain-oriented cold-rolled silicon steel sheets, heralds a new era of innovation. This fully oblique jointed iron core features a multi-stepped section design, ensuring uniformity throughout the iron yoke and the core itself, significantly elevating efficiency and performance to new heights.

Winding: Our meticulously designed windings feature corrugated oil passages and a no immersion paint process, secured with a tightening belt for enhanced stability. The concentric coil design boasts high-voltage windings with taps for precise voltage adjustments, easily accessible via a tap changer mounted on the box cover, allowing seamless voltage changes after power supply interruption.

Safety Protection Device: Our transformers, spanning a comprehensive capacity range of 30-2000kVA, are outfitted with essential safety features such as a pressure relief valve. Additionally, a gas relay with alarm and trip terminals can be installed according to user requirements, further 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 is equipped with a glass thermometer housed in a tube holder, strategically positioned atop the oil tank, extending 120±10 mm into the oil. For transformers within the 1000-2000kVA range, an outdoor signal thermometer is included, offering precise and reliable temperature monitoring.

We are a distinguished professional manufacturer with 32 years of extensive expertise in electric equipment manufacturing, specializing in transformers (including both dry-type and oil-immersed models), voltage stabilizers, regulators, switchgear, compact substations, frequency converters, and more. Our rigorous quality control system ensures exceptional safety and quality, earning us a prestigious reputation both domestically and internationally. Customer satisfaction is our ultimate objective, and we are committed to delivering sincere, meticulous, and satisfactory services. We warmly invite you to visit our state-of-the-art facility and establish a long-lasting partnership with us.

Product categories

Company Profile

Established with a visionary foundation in 1992, Dongliang Electric Co., Ltd. embarks on a journey of excellence, armed with a notable registered capital of 50 million RMB. With nearly three decades of profound expertise in the realm of medium voltage (MV) transmission and distribution electrical equipment, we have meticulously honed our craft. Our specialization flourishes in the creation of a versatile array of transformers: from dry-type, oil-immersed, and machine tool to environmentally-friendly, control, and lighting lamp transformers. Complementing these are our exceptional voltage stabilizers, regulators, sophisticated switchgear, compact substations, and cutting-edge frequency converters, all embodying our commitment to electrical innovation. Nestled within the prestigious 'Electrical Appliance Capital of China'-Yueqing City, Zhejiang Province-our strategic position offers breathtaking vistas of the East Sea and the Oujiang River to the south, and the enchanting national scenic splendors to the north. Anchored in steadfast principles of 'quality first, service first,' we embrace a culture of perpetual enhancement and creativity, continually surpassing customer anticipations. Our dedication to 'zero defects, zero complaints' resonates through a scrupulous, all-encompassing quality control system, ensuring pinnacle levels of quality and safety. Renowned for our impeccable reputation, we are the favored choice for discerning clients both domestically and globally. Your satisfaction is our unwavering pursuit, and we are committed to providing sincere, considerate, and fulfilling service. We eagerly extend an invitation to visit our state-of-the-art factory and embark on a long-lasting partnership with us.

Company advantage

certificate

 

service

exhibition

Packaging & Shipping

Packing Standard: We meticulously employ robust wooden cases or container protection to ensure the utmost safety and security of your valued product.
Q: Who are we?
A: At Dongliang Electric Co., Ltd., we proudly lead the transformer industry with our 32 years of unparalleled expertise in Professional Transformer Production. Based in Zhejiang, China, we innovate and excel in transformer solutions.
Q: Can your product be customized?
A: With a keen understanding of the intricate demands of voltage, frequency, and other unique transformer specifications worldwide, we offer bespoke customization services, ensuring our products fit your precise requirements perfectly.
Q: How about your after-sales service?
A: At Dongliang Electric Co., Ltd., we offer an outstanding 20-year after-sales quality guarantee, delivering unparalleled peace of mind and demonstrating our unwavering commitment to your satisfaction.
For more questions... Feel free to reach out to us. Our team is ready to provide you with immediate, attentive responses to all your inquiries.