315 Kva Oil-filled Transformer

The 315 kVA Oil Immersed Transformer is widely recognized as the "golden standard" for medium-scale commercial electrification. At this capacity level, energy efficiency becomes a primary driver for procurement. Our unit is engineered to exceed standard efficiency benchmarks, focusing on minimizing the Total Cost of Ownership (TCO) over its 30-year lifespan.

As a flagship model within our lineup of high-performance oil filled distribution transformers, this unit addresses the critical need for reducing "technical losses" in the grid. By optimizing the magnetic circuit, we ensure that the transformer consumes minimal power when idling (no-load condition), making it an economically superior choice for buildings with fluctuating occupancy, such as office towers or hotels.

To achieve these low-loss figures, we utilize high-grade Cold Rolled Grain Oriented (CRGO) silicon steel. Unlike traditional butt-lap stacking, our 315 kVA core is assembled using the Step-Lap Stacking Method.

 

• Noise Reduction: The step-lap joint smoothens the magnetic flux path at the corners of the core. This significantly reduces magnetostriction, resulting in a hum level often lower than 55dB, which is crucial for urban installations.
• Lower Excitation Current: The precision-cut laminations reduce the reluctance of the magnetic path, directly lowering the no-load current and improving the overall power factor of the system.

Off-circuit tap changer handle detail on 315 kVA oil immersed

transformer for voltage regulation.

While efficiency is key, durability is non-negotiable. The coils are wound with high-purity electrolytic copper (or aluminum), insulated with diamond-patterned epoxy paper (DDP). This insulation creates a rigid, solid block after curing, ensuring that our oil filled distribution transformers can withstand the mechanical stresses of external short circuits without winding deformation. The oil circulation channels are computer-designed to prevent "hot spots" deep inside the windings.

The 315 kVA capacity is the ideal fit for:
1. Commercial Real Estate: Main power supply for mid-sized shopping plazas or residential high-rises.
2. Public Infrastructure: Powering water treatment pumps or large street lighting control centers.
3. Renewable Integration: Acting as a step-up transformer for medium-sized solar PV arrays (ground-mounted).

315 kVA step-up transformer installed in a ground-mounted

solar PV farm.