A renewable power transformer for 400 kV systems is a specialized transformer designed to integrate renewable energy sources such as solar farms and wind parks into the Extra High Voltage (EHV) transmission grid. Unlike conventional transformers, it is engineered to handle the variable and intermittent nature of renewable generation, with reinforced insulation, advanced cooling systems, and winding designs that can manage harmonics and fluctuating loads from inverter‑based resources.
The purpose of a 400 kV renewable transformer is to step up the medium‑voltage output of renewable plants (typically 11–33 kV) to 400 kV for efficient long‑distance transmission, ensuring stable grid integration, reduced transmission losses, and reliable operation under dynamic renewable conditions. These transformers are critical for enabling large‑scale clean energy delivery, supporting grid stability, and advancing sustainable power infrastructure.
Technical Details
- 370MVA,400kV 3 phase
|
Sr.No |
Rating (MVA) |
Voltage (kV) |
No‑Load Loss (kW) |
Load Loss (kW) |
%Z (Impedance) |
HV Impulse (kV) |
|
1 |
370 |
400 |
140 |
650 |
15 |
1300 |