SEFON SCB12 Three-Phase Epoxy Resin Dry-Type Tran | RFQ Sourcing Details

Product overview The SEFON SCB12 is a three-phase, core-type dry transformer intended for power-frequency electrical service. The listed applications include power, electronic, and lighting systems, while the stated usage classifications include power, distribution, and rectifier transformer service.

Its insulation material is identified as epoxy resin, and the transformer uses dry-type cooling. Available electrical configurations The listed input-voltage options are 6, 6.3, 6.6, 10, 10.5, 11, 35, and 37 kV. Configuration tables also show high-voltage selections in the 20–24 kV and 35–38.5 kV ranges.

A 0.4 kV low-voltage value is listed, together with high-voltage tapping ranges of ±2 × 2.5% or ±5%, depending on the selected configuration. Listed rated capacities span 30–2500 kVA for one configuration group, 50–2500 kVA for the 20–24 kV group, and 50–1000 kVA for the 35–38.5 kV group.

These tables describe available combinations rather than confirming that every capacity is offered with every voltage and tapping arrangement. Operating conditions The stated working temperature range is 0–40°C, with relative humidity below 70% and installation altitude no higher than 2,500 m.

The installation guidance calls for protection from rain, moisture, excessive heat, and direct sunlight. Heat-dissipation vents should remain at least 40 cm from surrounding objects.

The listed guidance also advises avoiding corrosive liquids or gases, dust, conductive fibers, metal shavings, vibration, and electromagnetic interference.

Procurement questions to confirm Before ordering, obtain a configuration-specific technical sheet confirming rated capacity, primary and secondary voltage, frequency, vector group, impedance, tapping arrangement, enclosure or protection class, cooling arrangement, temperature-rise limits, insulation level, losses, sound level, terminals, and required accessories.

The listing identifies the winding type as “auto-transformer,” which should be reconciled with the requested distribution or isolation duty.

Buyers should also confirm whether forced-air cooling is included or optional, the applicable overload rating, installation clearances, final outline drawing, packed dimensions and weight, and transportation restrictions.

Request copies of the certificates required for the destination market and verify that their scope covers the exact ordered model. The stated 12-month warranty should be confirmed in writing, including its start date, exclusions, claim procedure, and available parts or service support.