Wolong Beijing Huatai Transformer

The Beijing public-resource platform names 卧龙电气集团北京华泰变压器有限公司 and records unified social credit code 91110114600001728T. Its supplier entry was published on 22 October 2024. Matching that Chinese legal name is useful when a buyer encounters different English translations of Beijing Huatai or older names in a historical reference.

This page uses the official Wolong group mark for brand recognition. The group's broader motor and drive businesses are separate from the Beijing transformer's sourcing scope. A request addressed to this enterprise should identify the transformer or rectification equipment and the contracting entity, rather than rely on the breadth of the group brand.

Beijing's public-resource platform published a candidate notice on 6 July 2026 for the Line 1 branch traction power-distribution equipment procurement. It names Beijing Huatai as the first-ranked candidate after evaluation on 3 July. This is a procurement-stage reference, not a commissioning record or a statement that the equipment has been delivered.

The same notice lists prior experience entries involving the Changping south extension, Beijing Lines 12 and 17, and the Jinhua–Yiwu–Dongyang regional rail project. These entries help identify the kinds of packages relevant to a rail buyer. The public notice does not provide the unit-by-unit loss schedules, drawings or factory acceptance reports for a new order.

A traction rectifier transformer is selected as part of a converter supply arrangement. The inquiry needs the intended rectification scheme, voltage relationship, load cycle and interfaces with the rectifier and protection equipment. Stating only a kVA value would leave the essential system arrangement undefined.

An auxiliary distribution transformer has a different brief: the AC distribution voltage, continuous duty, station environment and required loss performance. The procurement references mention dry-type amorphous-core distribution equipment, but that description should be attached to the auxiliary scope rather than assumed to describe every traction unit in a combined package.

For a tender covering both, separate the equipment schedule into distinct line items. Identify which supplier scope includes the rectifier, temperature controls, enclosure, monitoring and connecting conductors. This is an engineering recommendation for preparing the inquiry; it is not a claim that every option is included in Beijing Huatai's standard supply.

Rail-power purchasing normally involves interfaces with switchgear, supervisory systems and the station layout. Send the single-line diagram, available short-circuit information, required operating sequence and physical installation envelope. Define the primary supply and the intended output arrangement so the supplier can respond to the same system boundary as competing bidders.

For each proposed transformer, request a data sheet stating continuous rating, voltage combination, frequency, winding material, impedance and loss guarantees at their reference temperatures. A package-level description of traction equipment is insufficient for a life-cycle cost comparison. If the inquiry concerns amorphous-core auxiliary distribution equipment, keep its no-load loss evaluation separate from traction-duty performance.

Request the proposed test schedule, general-arrangement drawings, terminal interface drawing and list of documents delivered with each serial-numbered unit. Define which tests will be witnessed and how the complete equipment package will be accepted. These details allow the procurement record to serve as a starting point for a substantive discussion, instead of as a substitute for technical acceptance.

Begin with the project type and the package boundary: traction rectification, auxiliary distribution or a combined station procurement. Attach the load schedule and electrical drawings, then provide station-room dimensions, ventilation assumptions, installation access and environmental conditions. Describe any existing equipment that the new package must replace or connect to.

Ask for a proposal broken down by equipment item, with the agreed interface responsibilities, performance guarantees, drawing milestones and test-document delivery. Where a past rail reference is relevant, request a comparable reference with the same equipment role and duty. A project name alone does not establish that its electrical arrangement matches the new installation.

Use the platform inquiry to keep the requirements and replies together. The meaningful comparison is between the actual proposed transformer and rectification packages, with their technical conditions and documented scope, rather than between group-wide promotional claims.