Fully Sealed High Voltage Transformer with ISO9001 and CNAS Certification

• 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 a beacon of engineering excellence, thoughtfully designed within a rated voltage range of 10-35kV. These transformers present the ultimate solution across a vast spectrum of industries, including petroleum, metallurgy, chemical, textile, and light industry. They are masterfully crafted to excel in high dust environments, delivering unparalleled performance and reliability, adeptly meeting the stringent demands of modern enterprises.
Capacity Range 30-2500kVA

Engineered for unmatched superiority, our product assures high efficiency, minimal energy loss, and remarkably low noise levels. It boasts excellent internal heat dissipation and robust anti-short circuit capabilities. With negligible no-load and load loss, this transformer assures steadfast operation, extended longevity, and an effortless maintenance-free experience, making it a critical component for your power solutions.

This cutting-edge energy-saving, energy-efficient secondary-class oil-immersed transformer is a testament to our relentless pursuit of innovation. By incorporating advanced materials, pioneering technologies, and a harmonious blend of independent innovation and technology adoption, we have meticulously optimized and transformed the core and coil structures. This breakthrough achieves a dramatic reduction in no-load loss and noise, showcasing the formidable results of our self-developed innovations.

 

Oil-immersed transformers proffer an extensive array of benefits, including superior heat dissipation capabilities that ensure steady and stable operation. Celebrated for their outstanding insulation and high reliability, these transformers facilitate seamless voltage adjustments catering to diverse electricity needs. Their mature technology and cost-effectiveness render them an ideal selection for a multitude of applications.

Iron Core: Our state-of-the-art iron core, meticulously crafted from high-permeability magnetic grain-oriented cold-rolled silicon steel sheets, heralds a new era of innovation. This fully oblique jointed iron core, with its multi-stepped section design, promises uniformity across the iron yoke and the core itself, substantially enhancing efficiency and performance.

Winding: Our precisely engineered windings incorporate corrugated oil passages and a no immersion paint process, secured with a tightening belt for reinforced stability. The concentric coil design features high-voltage windings with taps for exact voltage adjustments, readily accessible via a tap changer mounted on the box cover, allowing effortless voltage modifications after power supply interruption.

Safety Protection Device: Our transformers, with a capacity range spanning 30-2000kVA, are outfitted with essential safety features, including a pressure relief valve. Additionally, a gas relay with alarm and trip terminals can be integrated based on user requirements, significantly 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 positioned in a tube holder atop the oil tank, extending 120±10 mm into the oil. For transformers within the 1000-2000kVA range, an outdoor signal thermometer is included, providing precise and reliable temperature monitoring.

We are a distinguished professional manufacturer with 32 years of extensive mastery in the realm of electric equipment manufacturing. We specialize in transformers, encompassing both dry-type and oil-immersed models, as well as voltage stabilizers, regulators, switchgear, compact substations, frequency converters, and more. Our stringent quality control systems guarantee unparalleled safety and quality, securing us a prestigious reputation both domestically and globally. Customer satisfaction is our ultimate aim, and we are devoted to delivering sincere, meticulous, and exceptional services. We warmly invite you to visit our facility and forge a long-lasting partnership with us.

Product categories

Company Profile

Founded in 1992 with a commendable registered capital of 50 million RMB, Dongliang Electric Co., Ltd. proudly brings nearly 30 years of unparalleled expertise in the meticulous manufacture of medium voltage (MV) transmission and distribution electrical equipment. As specialists, we excel in crafting an extensive array of transformers, encompassing dry-type, oil-immersed, machine tool, environmentally-friendly, control, and lighting lamp transformers. Our innovative range also includes voltage stabilizers, voltage regulators, switchgear, compact substations, frequency converters, and a variety of essential electrical equipment. Nestled in the renowned 'Electrical Appliance Capital of China'-Yueqing City, Zhejiang Province-our prime location boasts the serene allure of the East Sea and the Oujiang River to the south, with breathtaking national scenic vistas to the north. Steadfast in our unwavering principles of 'quality first, service first,' we are committed to relentless improvement and innovation, continually striving to surpass customer expectations. With a pursuit of 'zero defects, zero complaints,' we implement a rigorous, all-encompassing quality control system to assure the pinnacle of quality and safety. Celebrated for our stellar reputation in the industry, we are the preferred choice for discerning domestic and international clients. Your satisfaction is our perpetual ambition, and we are dedicated to delivering sincere, thoughtful, and gratifying service. We warmly invite you to visit our factory and explore opportunities to forge a lasting and fruitful 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: Dongliang Electric Co., Ltd. stands as a pioneering transformer company with an impressive 32 years of Professional Transformer Production Experience, proudly headquartered in Zhejiang, China.
Q: Can your product be customized?
A: Understanding the nuances of voltage, frequency, and other unique transformer specifications across various countries and regions, we offer tailored customization to perfectly suit your specific requirements.
Q: How about your after-sales service?
A: Our esteemed company is proud to offer a 20-year after-sales quality guarantee, providing you with unparalleled peace of mind.
For more questions... Feel free to reach out to us, and you will receive an immediate, attentive response.