YB-12 630 kVA Modular Prefabricated Distribution | RFQ Sourcing Details

The YB-12 is a modular prefabricated distribution substation designed to consolidate electrical distribution, control, protection, monitoring, and supporting systems within a transportable enclosure.

The stated configuration has a rated capacity of 630 kVA, a 0.4 kV low-voltage rating, 4% impedance voltage, three-phase operation, and a 50/60 Hz frequency rating. The internal equipment is described as factory assembled, wired, debugged, and tested before shipment.

Depending on the selected configuration, the integrated system can include high- and medium-voltage switchgear, a distribution transformer, a low-voltage cabinet, remote monitoring and control, protection, fire alarm, gas detection, ventilation, heating, air conditioning, lighting, fire extinguishing equipment, anti-static flooring, drainage, and heat-dissipation provisions.

Modular horizontal or vertical combinations and non-standard configurations are available. The enclosure uses a fully welded steel structure and a three-layer composite wall.

Stated protective characteristics include fire resistance, corrosion resistance, seismic resistance, dust protection, wind resistance, and rain protection.

The detailed description identifies IP54 overall protection, while the attribute table separa;the required enclosure rating should therefore be confirmed for the ordered configuration. Anti-corrosion and salt-fog-resistant versions are available as customization options for coastal environments.

Documented application areas include photovoltaic, wind, and energy-storage power stations;industrial and mining facilities;manufacturing plants;urban and suburban distribution networks;municipal projects;grid upgrades;offshore platforms;field engineering;temporary power projects;railways;highways;and ports.

Important configuration note: the available information is inconsistent about the transformer technology. The product title describes an oil-immersed transformer, while the attribute table identifies a dry-type, multi-winding, core-type transformer with Class F insulation.

Buyers should obtain a configuration sheet and approved single-line diagram that identify the exact transformer type and included equipment before ordering.

Procurement questions to confirm include the high-voltage input rating, transformer cooling and insulation system, winding arrangement, vector group, tap range, short-circuit withstand level, temperature-rise limits, losses, noise limits, enclosure protection rating, fire-protection scope, seismic design basis, corrosion class, cable-entry arrangement, monitoring protocol, auxiliary power requirements, and applicable project-specific test documentation.

Buyers should also verify whether the stated 2000 × 2000 × 2300 mm specification or one of the larger modular cabin schemes applies to the required assembly, and confirm final shipping dimensions and weight.