Product Overview
The 50kVA Dry Type Transformer is a cast resin distribution transformer utilizing copper windings, configured for standard 10kV to 0.4kV step-down applications on 50Hz grid networks.
Scope of Supply
Product: Cast resin type transformer;
Number of phases: Three-phase;
Rated power: 30KVA - 3150KVA dry type transformer;
Primary voltage: 10,000V;
Secondary voltage: 400V;
Frequency: 50Hz;
Vector Group: Dyn11;
Customizable production: Available.
Technical Specifications
|
Model |
SCB11-50kVA-10/0.4 |
|
Type |
Dry type Transforme |
|
Standard |
IEC60076 |
|
Rated Power |
50kVA |
|
Frequency |
50HZ |
|
Phase |
Three |
|
Cooling Type |
ANAF |
|
Primary Voltage |
10 KV |
|
Secondary Voltage |
0.4KV |
|
Winding Material |
Copper |
|
Vector Group |
Dyn11 |
|
Impedance |
4% |
|
Tap Changer |
NLTC |
|
Tapping Range |
±2*2.5% @ Primary Side |
|
No Load Loss |
0.480 KW |
|
On Load Loss |
2.73KW |
Key Advantages
- High Safety
PT100 temperature sensors provide continuous thermal monitoring, ensuring the transformer operates within its rated Class F/H insulation temperature limits.
- Easy Maintenance
The solid-state dry-type design eliminates oil-leakage risks, simplifies routine inspections, and streamlines the servicing of internal copper windings and cooling components.
- Strong Environmental Adaptability
A custom-engineered stainless steel enclosure provides superior corrosion resistance, protecting the core components in harsh or humid Vietnamese climatic conditions.
- Compact Size and Lightweight Design
The compact footprint, achieved through high-density foil winding, simplifies installation in restricted industrial enclosures and MCC panels.
- Low Noise Emission
Step-lap CRGO core stacking and anti-vibration pad isolation minimize operational humming, ensuring compliance with low-noise substation requirements.
Transformer Process Flow Diagram

Transformer drawings


Customization Capabilities
| Customization Vector | Engineering Specification & Factory Capability |
|---|---|
| Vector Group Adaptation | Tailored winding configurations integrate seamlessly with onsite phase-angle distribution. |
| Dimensional Modification | Altered enclosure dimensions comply with restricted structural spaces and retrofits. |
| Terminal Placement | Busbar and cable entries are customized for top, bottom, or side connections. |
| Harmonic Engineering | Design variants incorporate K-factor shielding to handle severe non-linear loads. |
| Auxiliary Integration | Enclosures support custom integration of temperature controllers, heaters, and arrestors. |
Quality Control & Shipment
Quality Control:
- Thermal Control Validation
Fan and temperature controller testing ensures automated cooling activation at predefined thermal thresholds.
- Dielectric Safety Profiling
Withstand voltage and partial discharge testing ensures insulation complies with IEC 60076-11 dielectric specification boundaries.
- Loss & Impedance Audit
No-load and load loss measurements confirm operational efficiency and impedance parameter compliance.
Shipment & Logistics:
- Fumigation-Free Crate Fabrication
Enclosures are packed within compliance-ready, fumigation-free wooden boxes for international shipping clearance.
- Internal Chassis Immobilization
Internal anchoring mechanisms secure the base frame to prevent shifting during transit.



FAQ
Q: Can the enclosure withstand aggressive outdoor deployment?
A: Heavy-gauge steel panels coated with zinc-rich primer ensure structural corrosion resistance in marine and industrial atmospheres.
Q: Are specialized instruments calibrated prior to factory testing?
A: All diagnostic equipment undergoes scheduled calibration under ISO/IEC 1725 accredited standards, with traceability reports supplied inside the technical file.
Q: What specific customs documentation accompanies international freight?
A: Shipments include standardized commercial invoices, packing lists, originating certificates, and signed quality inspection records.
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