3000A Three Phase Dry Type Rectifier ​​Transformer 400V To 14v With UL Certification

Summarization

The 3000A Three-Phase Dry-Type Rectifier Transformer is engineered for high-current industrial rectification applications. With a 400V primary and 14V secondary at 60Hz, this transformer delivers stable DC output via rectifier systems while meeting strict reliability and safety requirements for heavy-duty power conversion.

Key Features

• Rated current: 3000 A — supports large-scale rectifier loads.
• Input voltage: 400 V (three-phase) — compatible with common distribution systems.
• Output voltage: 14 V — optimized for rectifier and DC supply applications.
• Frequency: 60 Hz — suitable for regions and equipment using 60 Hz power.
• Dry-type construction — reduced fire risk, no oil required, low maintenance.
• High short-circuit withstand: short-circuit voltage 22.532 V, short-circuit current 36.338 A.
• Low impedance voltage: 6.4184% — maintains voltage stability under load.
• Efficient performance: load loss 1195.5 W and no-load loss 213.2 W.

Electrical Performance

• DC resistance: 81.97 mΩ — designed for efficient current flow and minimal resistive heating.
• Impedance and short-circuit characteristics: impedance voltage 6.4184% with measured short-circuit voltage 22.532 V and short-circuit current 36.338 A, ensuring predictable performance during fault conditions.
• Losses: no-load loss 213.2 W and load loss 1195.5 W — demonstrates competitive efficiency for heavy-current rectifier transformers.

Product features

• High efficiency: Provides a rated current of up to 3000A to ensure stable operation under high load.
• Low loss design: The load loss is only 1195.5W, and the no-load loss is 213.2W, which is an economical choice and reduces energy consumption.
• Strong short-circuit capability: the short-circuit voltage is 22.532V, and the short-circuit current can reach 36.338A, ensuring reliability and safety in abnormal situations.
• Excellent impedance characteristics: the impedance voltage is 6.4184%, which can maintain voltage stability when the load changes, improving the overall reliability of the system.
• Wide application areas: suitable for a variety of industrial applications, especially in occasions requiring high-power DC power supply, such as welding, electroplating, etc.

Specification

Applications

• Industrial rectifier plants (electroplating, electrolysis, and smelting)
• DC power supplies for large motors and drives
• Traction, welding, and metallurgical processes
• Backup and standby DC systems in manufacturing and utilities

Production process

FAQ

WINLEY is located in Xiamen, China. We are specialized in manufacturing all kinds of transformers, voltage stabilizers, voltage regulators, etc. The products are widely used in industrial machinery, new energy, power generation, power supply, coal, metallurgy, petroleum, chemical, construction, port, airport, railway transportation, urban infrastructure, and other areas.

With more than 17 years experience, WINLEY always adhere to the route of "Integrity makes brand,quality wins the market"! We have a professional R&D team, a quality control team, scientific production management system and comprehensive customer service system.

WINLEY holds ISO 9001:2015 quality management system certification, All products have approved by CE certification, we can also apply for UL(Authorized by partner), SASO, SONCAP, etc. according to customer requirements.

WINLEY products are sold to Europe, North & South America, Oceania, Asia and Africa, more than 100 countries and regions in the world are using WINLEY products. Products’ quality and technical service are recognized by all customers around the world, and we have cooperative distributors in some countries.

And we will continue to carry forward the integrity of compliance, scientific and technological innovation, win-win cooperation spirit, provide quality products and comprehensive service to all partners, and work hard for the development of the world’s green electrical power.