






Introduction
A loop‑feed pad‑mount transformer is built for underground power networks where reliability is critical. Unlike a radial feed system, it features two primary cable connections that form a continuous loop. This design allows power to be redirected around a fault, keeping most of the grid running.
How It Works
Power comes in through one set of bushings, passes through the transformer, and continues to the next unit on the loop. When a fault occurs, the defective segment can be isolated by opening the loop at that point – the rest of the network stays energized without interruption.
Key Benefits
Typical Applications
Typical Specifications
| Parameter | Range |
|---|---|
| Power rating | 75 kVA – 5000 kVA |
| Primary voltage | 5 kV, 15 kV, 25 kV, 35 kV |
| Secondary voltage | 120/208V, 277/480V, etc. |
| Frequency | 50/60 Hz |
| Cooling method | ONAN |
| Enclosure rating | NEMA 3R / IP54 |
| Applicable standards | ANSI/IEEE, IEC |
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