Description about hermetic step-up transformer
A hermetic step-up transformer combines the benefits of voltage transformation with enhanced protection and reliability, making it a valuable component in various power distribution and industrial applications.
Advantages of hermetic step-up transformer:
1. Applications: Hermetic step-up transformers are often used in environments where exposure to the elements is a concern, such as outdoor installations, substations, industrial facilities, and renewable energy projects like wind and solar farms.
2. Cooling Methods: These transformers can use various cooling methods, such as oil-immersed or air-cooled systems. The hermetic seal ensures that the cooling medium remains uncontaminated and operates efficiently.
3. Durability: The hermetic sealing enhances the transformer's resistance to harsh environmental conditions, making it suitable for use in challenging and remote locations.
4. Maintenance: The sealed design reduces the need for regular maintenance, as the internal components are protected from dust, moisture, and other contaminants that can cause wear and tear.
Technical Datasheet for 1600KVA hermetic step-up transformer
Items | Specifications |
Brand | Pearl Electric |
Production Descriptions | PEO-S-1600/13.8/0.66
3 phase hermetic step-up transformer |
Reference standards | IEC 60076: Power transformers. |
Capacity | 1600kVA |
Frequency | 50 Hz |
Voltage (HV) (kV) | 13.8kV |
Voltage (LV) (kV) | 0.66kV |
Impedance | 6% |
Connections (Vector Group) | Dyn11 |
Tapping Range | off-load Tap Changer,
±2*2.5% on HV side |
Core materials | Silicon Steel |
Winding materials | Copper |
Lightning Impulse Withstand Voltage | 95/30 |
AC withstand voltage | 38/10 |
Insulation Class | A-class |
Temperature Rise | 60/65K |
Cooling method | ONAN |
Origin | China |
Manufacturer | Pearl Electric Co., Ltd. https://en.pearlelectric.com/ https://www.pearltransformer.com/ |
The accessories list of 3 phase hermetic step-up transformer
HV bushings
LV bushings
Protection relay
Oil-drain valve
HV/LV cable box
Transformer wheels
Terminal box
Earthing terminals
The Testing standard for 3 phase hermetic step-up transformer
All equipment testing will be done in the manufacturer workshop and carried out by Pearl Electric:
• Measurement of the winding resistance;
• Measurement of the voltage ratio and check of the vector group;
• Measurement of the saturation curve;
• Measurement of no load losses and no load current;
• Dielectric test;
• Visual check (surface treatment or painting, compliance with drawings);
• Control document and all items
