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11KV 1600KVA Three Phase Low Loss Distribution Transformer

11KV 1600KVA Three Phase Low Loss Distribution Transformer

The 11KV 1600KVA Three Phase Low Loss Distribution Transformer sets a new benchmark in modern power distribution. Engineered with an innovative oil-immersed design, it integrates advanced core and winding technologies to achieve superior voltage regulation and energy efficiency. Premium oxygen-free copper windings and high-permeability cold-rolled silicon steel ensure uniform magnetic flux, reducing both no-load and on-load losses significantly. The fully sealed construction, combined with an optimized natural cooling system featuring advanced radiator fins, enhances thermal performance while minimizing maintenance requirements. Designed for the demands of urban power grids and industrial environments, this transformer offers consistent, reliable power delivery even under variable load conditions, low noise emissions for sensitive areas, and robust safety features for long-term durability. Ideal for sustainable energy management and modern grid applications, the transformer is the ultimate solution for cost-effective, high-performance power distribution.

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Product Accessories

Core
Manufactured using high-permeability cold-rolled silicon steel sheets, featuring a fully mitered step-lap stacking process to minimize hysteresis loss, reduce no-load current, and lower operational noise.
A vacuum nitrogen annealing process is applied to eliminate residual stress, enhancing electromagnetic performance and long-term stability.

Windings
Both high-voltage (HV) and low-voltage (LV) windings are made from oxygen-free copper conductors or copper foil. The LV winding adopts a double-layer cylindrical or helical structure, while the HV winding features a multi-layer cylindrical design, improving short-circuit withstand capability and electrical conductivity.
The windings are tightly wound directly onto the core, ensuring a compact structure, high mechanical strength, and enhanced operational durability.

Oil Tank
Fully Sealed Corrugated Oil Tank: Constructed from welded steel plates, incorporating corrugated radiator fins that serve both as a cooling mechanism and an oil expansion compensation system. This eliminates the need for an external conservator, reducing maintenance requirements.
Some models utilize a bell-type oil tank design, further reinforcing mechanical strength and structural integrity.

Cooling System
Natural Oil Cooling (ONAN): Heat dissipation is achieved through the expansion and contraction of transformer oil within corrugated radiator fins, ensuring efficient thermal regulation. This system is ideal for outdoor installations, providing long-lasting reliability in varying environmental conditions.

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Product Specifications

Rated Voltage

Primary (HV): 11kV

Secondary (LV): 0.4kV

Power Rating

1600KVA（1.6MVA）

Phase Configuration

Three Phase

Frequency

50/60Hz

No-load Loss

1640W

On-load Loss

14,500W

Short-circuit Impedance

4.5%

No-load Current

0.5% – 0.8%

Vector Group

Dyn11 or Yyn0

Compliance

Meets IEC 60076 ANSI and IEEE standards

Product Applications

Economy is more affordable

Provides stable and efficient power for manufacturing plants, refineries, and heavy machinery operations.

Industrial Power Distribution
Ensures reliable electricity supply for office complexes, shopping malls, and large commercial centers.

Commercial & High-rise Buildings
Supports solar and wind energy systems by stabilizing voltage fluctuations and enhancing grid compatibility.

Renewable Energy Integration
Optimized for substations and regional power grids, reducing transmission losses and improving power quality.

Utility & Grid Infrastructure

Product Advantages

High Energy Efficiency

core design reduces no-load losses by over 30% compared to traditional models, minimizing energy waste and operational costs.

Robust & Low-maintenance

Fully sealed oil tank eliminates the need for an oil conservator, ensuring long-term durability with minimal upkeep.

Superior Electrical Performance

Copper windings and advanced insulation technology enhance short-circuit withstand capability and voltage regulation stability.

WellDone Power Transformer Plan Drawing

FAQ

What range of transformer products do you offer and which standards do they meet?

We manufacture a diverse array of transformers including Oil-Immersed Distribution Transformers, Dry Type Transformers, Power Transformers, Three Phase Pad Mounted Transformers, Single Phase Pad Mounted Transformers, Substation Transformers, and Pole Mounted Transformers. Our technical team, with nearly 20 years of industry experience, ensures that our designs comply with international standards such as ANSI, IEEE, DOE, CSA, AS, AZS, GOST, IEC, and more. Additionally, many of our products have obtained UL, cUL, and CSA certifications, affirming their safety and performance in global markets.
How do you ensure the quality and reliability of your transformers?

Our transformers are produced under a rigorous quality management system covering every stage from material selection to final testing. Each product comes with a minimum 24-month warranty, ensuring long-term safety and reliability. This commitment to quality has earned the trust of global customers and leading industry players.
What are your production lead times, customization options, and global market reach?

For standard models, our production lead time is typically 10 to 25 days, and we offer flexible OEM/ODM services for customized projects. We also tailor packaging solutions to meet specific customer requirements. Our transformers are exported worldwide—including North America, Europe, South America, Australia, Asia, and Africa—with successful partnerships involving renowned companies. For more details or personalized support, please contact us via email or WhatsApp.