Product Introduction
This 30 MVA power transformer was delivered to South Africa in 2016. the rated power of the transformer is 30000 KVA. It is a Step-down transformer 132KV to 11KV, the primary voltage is 132kv, the secondary voltage is 11kv. Windings are composed of two parts, namely, a conductor and insulation material. For the conductor, we use high grade electrolytic copper. Our Oil Immersed Transformers obtain high thermal capacity with the use of epoxy coated Insulter kraft paper, which has higher short time overload capacity than any other kraft paper type. Our 30 MVA power transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.
SCOTECH ensure each one of our delivered transformers had passed the full acceptance test and we remains 0 fault rate record for more than 10 years so far, oil immersed power transformer is designed in accordance with IEC, ANSI and other major international standards.
Scope of Supply
Product: Oil Immersed Power Transformer
Rated Power: Up to 200 MVA
Primary Voltage: Up to 230 KV
Technical Specification
30 MVA power transformer specifications and data sheet
| Delivered to | South Africa |
| Year | 2016 |
| Model | S11-30 MVA-132/11KV |
| Type | Oil Immersed Power Transformer |
| Standard | IEC60076 |
| Rated Power | 30 MVA |
| Frequency | 50 HZ |
| Phase | Three |
| Cooling Type | ONAN |
| Primary Voltage | 132 KV |
| Secondary Voltage | 11 KV |
| Winding Material | Copper |
| Vector Group | Dyn11 |
| Impedance | 7 |
| Tap Changer | OLTC |
| Tapping Range | ±8*1.25% |
| No Load Loss | 5.4 |
| On Load Loss | 38 |
| Accessories | Standard Configuration |
| Remarks | N/A |
30 MVA 132/11KV Transformer Manufacturing
Finished 30 MVA 132/11KV Transformer
Packing and Delivery
Why would a tap changer system be installed on HV side of power transformers?
on HV side voltage is high but current is less but in the LV side voltage is less and current is high. If we connect Tap changer on the LV side then sparking will take place. Better controlled output can be determined when we connect tap changer in LV. The HV winding generally wound over LV winding hence it is easier to access the HV winding turns instead of LV winding.
FAQ
1. What standard do you follow?
IEC 60076 standard, and all other major international standard such as ANSI, CSA, UL, etc.
2. What package do you have for transformers?
Standard package with welded iron frame packed with ply wood boxes.
3. How long can I receive my transformers?
The shipping time from our port (shanghai or Ningbo) to your port is range from one week to one month, depend on the distance.
