Transformer RFQ Checklist for Distributors

Start with the electrical schedule

List the required rated capacity, primary and secondary voltages, phase and operating frequency. For example, “500 kVA, 11/0.415 kV, three-phase, 50 Hz, one unit” is a useful starting brief, but it is not a completed design. Add the required tap range, connection group, cooling arrangement and any guaranteed loss or impedance requirements available from the project engineer.

Describe the application and documents

State whether the transformer is intended for a distribution network, industrial site or substation. Include the installation environment, destination utility requirements and the applicable standard specified by the buyer. Attach the available technical schedule or drawings. Identify which test records, certificates or inspection arrangements are required for the exact model; a general supplier certificate does not establish compliance for every configuration.

Make quotations comparable

Ask each supplier to quote against the same schedule. Compare the stated winding material, accessories, guaranteed technical particulars, inspection scope, delivery terms and exclusions. Agree any departures from the requested specification in writing before confirming the order.

Plan the order and shipment

Confirm quantity, destination, packing instructions and the required delivery window. The indicative normal lead time is 25 days, with the final schedule agreed for the selected configuration and quantity. Single-unit orders are accepted. Submit capacity, voltage and quantity together with your WhatsApp number so the team can review the quotation request.