High Efficiency Low Loss Transformer
The S20-M.RL 200 kVA 10/0.4 kV 3D wound core oil-immersed transformer features aluminum windings, a Dyn11 vector group, 4% impedance, and natural cooling. Its three-dimensional wound core design offers a practical option for industrial, commercial, and utility power distribution applications.
Basic Info.
The S20-M.RL 200 kVA 10/0.4 kV 3D wound core oil-immersed transformer is designed for three-phase power distribution in industrial facilities, commercial buildings, and distribution networks. It features a three-dimensional wound core, aluminum windings, a Dyn11 vector group, and natural cooling.
With a rated capacity of 200 kVA and a voltage ratio of 10/0.4 kV, this transformer is suitable for medium-voltage to low-voltage power conversion. Its 4% impedance voltage is an important parameter for evaluating voltage regulation and short-circuit characteristics during electrical system design.
Applications
The S20-M.RL 200 kVA 3D wound core oil-immersed transformer can be used in:
Industrial and commercial power distribution systems
Residential distribution networks
Small and medium-sized manufacturing facilities
Commercial buildings and infrastructure projects
Three-phase distribution systems requiring a 400 V low-voltage supply
Final transformer selection should consider the project's load requirements, installation environment, protection settings, applicable standards, and local utility specifications.
Performance parameters for reference
| Parameter | Specification |
| Transformer Model | S20-M.RL |
| Transformer Type | 3D Wound Core Oil-Immersed Transformer |
| Rated Capacity | 200 kVA |
| High Voltage | 10 kV |
| Low Voltage | 0.4 kV |
| Vector Group | Dyn11 |
| Frequency | 50 Hz |
| Impedance Voltage | 4% |
| Winding Material | Aluminum |
| Cooling Method | ONAN (Oil Natural, Air Natural) |
3D Wound Core: A three-dimensional magnetic circuit designed to optimize the core structure and magnetic flux distribution.
Energy-Efficient Design: The wound core structure can help reduce no-load losses, depending on the core material and manufacturing quality.
Aluminum Windings: Provide a cost-effective conductor option for distribution transformer applications.
Natural Cooling: Supports heat dissipation through natural oil circulation and natural air cooling (ONAN), without forced oil circulation or cooling fans.
Dyn11 Vector Group: Suitable for common three-phase distribution applications requiring this connection configuration.
3D Wound Core Design
The S20-M.RL 200 kVA oil-immersed transformer adopts a three-dimensional wound core structure formed by winding silicon steel strips into a continuous magnetic circuit. Its three core limbs are arranged in a three-dimensional configuration, allowing the magnetic flux paths to align with the core structure.
Compared with conventional planar laminated core designs, a 3D wound core can help optimize magnetic flux distribution and reduce no-load losses. Its structural design may also contribute to lower operating noise, depending on the core material, manufacturing process, and operating conditions.
This core configuration provides an alternative solution for distribution applications where energy efficiency, operating noise, and long-term operating costs are important considerations. Combined with aluminum windings and natural cooling, the S20-M.RL offers a practical configuration for three-phase power distribution.
Actual energy performance should be evaluated using the specified no-load and load loss values.
Customized Transformer Solutions
TAILI Electric provides transformer solutions for various power distribution requirements. Depending on project needs, parameters such as rated capacity, voltage ratio, winding material, impedance, cooling configuration, and accessories can be discussed during technical evaluation.
Contact our team to discuss your requirements for the S20-M.RL 200 kVA 10/0.4 kV 3D wound core oil-immersed transformer.
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