Import 35kv(And Below) Oil-Immersed Transformer — Buy in Bulk from Supplier in China

This 35 kV and below oil-immersed transformer from China Electric Equipment Group Co., Ltd is a liquid-filled power distribution transformer designed for stepping down medium-voltage grid supply to levels usable by industrial, commercial, and utility end-users. The unit employs mineral oil as both cooling and insulating medium, a mature technology that offers excellent thermal transfer and dielectric strength. The source description notes low energy loss, reduced noise operation, and stable performance under variable load conditions.

Oil-immersed transformers of this voltage class typically use grain-oriented silicon steel laminations in the core to minimise hysteresis and eddy-current losses, with copper or aluminium windings rated for continuous operation. The oil fill allows natural or forced oil circulation depending on kVA rating, with typical cooling classes including ONAN (oil natural, air natural) for smaller units and ONAF (oil natural, air forced) for larger capacities. Standard material grades for this product category include Z11 or Z12 annealed silicon steel, with winding conductors insulated by enamel and oil-impregnated paper. Tapping range is typically plus or minus 2.5% or plus or minus 5% in standard configurations, though the exact tap arrangement for this listing is not stated.

Primary applications include power plants, substations, and manufacturing facilities where reliable step-down transformation is critical. The transformer suits both indoor and outdoor installation with appropriate enclosure protection. Buyers should confirm the exact kVA rating, vector group, impedance voltage percentage, and whether the unit includes a conservator tank or hermetically sealed design. The supplier lists a Jiangning, Nanjing address but provides no verified MOQ, lead time, or certification documentation beyond the source description's mention of ISO and CE compliance, which buyers must independently validate.

China Electric Equipment Group Co., Ltd is located at 6, Shuige Road, Jiangning District, Nanjing, Jiangsu Province, with postal code 210000. The supplier carries a 'harbor' trust tier and 'imported' supplier tier within the platform system. The response rate is recorded at 0.00% with an average response time of 0 hours, indicating no verified inquiry response activity on record. This absence of response data is a material consideration for buyers evaluating communication reliability.

The listing does not disclose factory size, annual output, number of employees, years in operation, or specific client references. No independent certification numbers for ISO or CE are provided in the source data; buyers must request current certificate copies directly. The company name suggests a group structure, but no subsidiary or manufacturing affiliate details are present. Given the lack of response history, buyers should establish direct contact early in the sourcing process and consider verification through third-party factory audit or video inspection before committing to volume orders.