Product Introduction
The YAWEI S11-1600kVA oil immersed distribution transformer is designed for three-phase power distribution systems requiring voltage conversion from 10kV to 0.4kV. With a rated capacity of 1600kVA and a Dyn11 vector group, it is suitable for industrial facilities, commercial power distribution networks, and infrastructure projects.
This transformer features aluminum windings, No. 45 transformer oil as specified for the project, and an enhanced radiator arrangement designed to increase heat dissipation capacity. It is configured for an installation altitude of 2,150 meters, with a specified top-oil temperature rise limit of no more than 55K, subject to engineering verification for the actual operating conditions.
The project configuration includes a gas relay, pressure relief valve, terminal box, and an oil temperature indicator with a remote 4–20mA signal output using a two-wire connection. C3 corrosion protection, a camel-gray finish (YO1), red, yellow, and green bushing terminal protective covers on both the high- and low-voltage sides, and an 820mm track gauge are specified for this order.
Final drawings, nameplate details, and technical documents should be reviewed and approved before manufacturing.
1. 1600kVA Capacity and Dyn11 Connection
The S11-1600kVA transformer provides a rated capacity of 1600kVA, with a specified high-voltage rating of 10kV and low-voltage rating of 0.4kV. Its Dyn11 vector group consists of a delta-connected high-voltage winding and a star-connected low-voltage winding with a neutral terminal.
This configuration can support industrial and commercial distribution systems where the specified voltage ratings and vector group match the electrical system design.
2. Aluminum Windings and Enhanced Heat Dissipation
The transformer is specified with aluminum windings on both the high- and low-voltage sides. Its radiator arrangement is designed with increased heat dissipation capacity to meet the project's thermal design requirements.
The specified top-oil temperature rise limit is ≤55K. Actual thermal performance must be verified against the approved design, ambient temperature, altitude, loading conditions, and applicable technical requirements.
3. Remote Oil Temperature Monitoring
The project includes an oil temperature indicator with a remote transmission signal output of 4–20mA using a two-wire connection. This signal can be integrated with a compatible monitoring or control system, subject to the receiving system's electrical and communication requirements.
The transformer also includes a gas relay, pressure relief valve, and terminal box as specified. These accessories support monitoring and protection functions, with their final ratings and arrangements confirmed in the approved technical documents.
4. C3 Corrosion Protection and Project-Specific Configuration
The specified enclosure protection system is C3 corrosion protection, with a camel-gray finish identified as YO1. Red, yellow, and green protective covers are required for the high- and low-voltage bushings.
The project also specifies an 820mm track gauge and an installation altitude of 2,150 meters. These requirements should be reflected in the approved drawings and nameplate documentation where applicable.
