Product Introduction
The 50 MVA power transformer with on load tap changer was delivered to Viet Nam in 2019, the rated power of the transformer is 50000 KVA. the primary voltage of the transformer is 115 KV and secondary voltage is 38.5 KV. The transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.
Our Scope of Supply
Product: Oil Immersed Power Transformer
Rated Power: Up to 200 MVA
Primary Voltage: Up to 230 KV
Technical Specification
50 MVA power transformer specification and data sheet
| Delivered to | Viet Nam |
| Year | 2019 |
| Model | SFZ11-50 MVA-115/38.5KV |
| Type | Oil Immersed Power Transformer |
| Standard | IEC60076 |
| Rated Power | 50 MVA |
| Frequency | 50 HZ |
| Phase | Three |
| Cooling Type | ONAF |
| Primary Voltage | 115 KV |
| Secondary Voltage | 38.5 KV |
| Winding Material | Copper |
| Vector Group | YNd11 |
| Impedance | 12% |
| Tap Changer | OLTC |
| Tapping Range | ±9*1.78% @ Primary Side |
| No Load Loss | 28 KW |
| On Load Loss | 265 KW |
| Accessories | Standard Configuration |
| Remarks | N/A |
General Arrangement Drawing
50 MVA power transformer Technical requirements and weight.
50 MVA 115/38.5KV Transformer Production
Finished 50MVA 115/38.5KV Transformer
50 MVA 115/38.5KV Transformer Testing(FAT)
Packing and Delivery
The main body was loaded and fixed on the 12m flat truck with transformer oil.
Installation Commissioning and Operation
What test should be done before commissioning of a transformer?
Insulation resistance test
Dielectric strength test
Tap changer test
Buchholz relay test
Low oil level alarm test
Temperature indicator test
Cooling fans test
Marshalling box test
Protective relay test
Additional checks during commissioning of power transformer
All oil valves are in correct position closed or opened as required.
All air pockets are cleared.
Thermometer pockets are filled with oil.
Oil is at correct level in the bushing, conservator tank, diverter switch tank etc.
Arcing horn of the bushing is set correctly
CT polarity is correct when bushing mounted CTs are provided.
FAQ
1. What is the scope of your supply?
We can supply distribution transformers up to 5000KVA 35KV, power transformers up to 200 MVA 230KV, dry type transformers up to 10 MVA 35KV, and other special transformers such as rectifier transformer and furnace transformers.
2. What service can you provide?
We can provide design, manufacturing, delivery, installation, commissioning, after-sale service.
3. Can I visit your company?
You are welcomed to visit our company at any time, contact us to get start the journey.
