Project Background
Pakistan’s growing infrastructure and rural electrification projects have created a demand for reliable and efficient power distribution systems. A rural industrial facility in Pakistan required a transformer to support a dual-purpose system: stepping down high voltage from the grid for operational needs and stepping up generated power for feeding back into the grid during surplus production. The solution involved installing a 150 KVA 11 kV 3-Phase Step-Down and Step-Up Distribution Transformer to enable efficient power management and ensure operational reliability.
Operational Results
- Efficient Dual-Mode Operation: The transformer provided stable 400 V power to the industrial equipment and efficiently stepped up surplus generated power to 11 kV for feeding back into the grid.
- Energy Savings: High efficiency and low energy losses contributed to a reduction in operational energy costs.
- Reliable Performance: The transformer has shown excellent reliability, handling load variations and voltage fluctuations without interruptions.
- Enhanced Grid Integration: The step-up functionality has allowed the facility to contribute excess power to the grid, supporting local energy distribution.
- Minimal Maintenance: The transformer’s robust design and advanced cooling system have reduced maintenance needs, ensuring consistent operation.
Product Introduction
These 150 KVA 3 phase transformers were delivered to Pakistan in 2019, the rated power of the transformer is 150 KVA. This 150 KVA Step Down transformer 11kv to 0.4kv, the primary voltage is 11kv, the secondary voltage is 0.4kv. We can supply both 150 KVA Step Up and Step-Down transformer, the cooling is ONAN. Our 150 KVA distribution transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long operation time.
We 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 distribution Transformer
Rated Power: Up to 5000 KVA
Primary Voltage: Up to 35 KV
Technical Specification
200 KVA power transformer specification and data sheet
| Delivered to | Pakistan |
| Year | 2019 |
| Model | S11-150 KVA-11/0.4KV |
| Type | Oil Immersed Distribution Transformer |
| Standard | IEC60076 |
| Rated Power | 150 KVA |
| Frequency | 50HZ |
| Phase | Three |
| Cooling Type | ONAN |
| Primary Voltage | 11 KV |
| Secondary Voltage | 400 V |
| Winding Material | Copper |
| Vector Group | Dyn11 |
| Impedance | 4% |
| Tap Changer | NLTC |
| Tapping Range | ±2*2.5% |
| No Load Loss | 0.33KW |
| On Load Loss | 2.6KW |
| Accessories | Standard Configuration |
Transformer Testing
Packing and Delivery
