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Project Case Study

Package Substation Transformer and Switchgear for Mining Site Power Distribution

A package substation, oil-immersed transformer and switchgear solution supplied for a mining site in West Africa, supporting remote-site power distribution, harsh environment requirements, factory testing, documentation and export shipment coordination.

West Africa 2024 High Voltage Switchgear Mining
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Package Substation Transformer and Switchgear for Mining Site Power Distribution
Project Overview

Project Snapshot

A package substation, oil-immersed transformer and switchgear solution supplied for a mining site in West Africa, supporting remote-site power distribution, harsh environment requirements, factory testing, documentation and export shipment coordination.

This project involved the supply of package substation equipment, oil-immersed transformers, MV switchgear and LV distribution panels for a mining site power distribution system in West Africa. The equipment was configured for outdoor installation and remote-site operating conditions.

Before production, the project specification and single-line diagram were reviewed to confirm transformer rating, voltage ratio, environmental requirements, switchgear protection, enclosure protection, cable entry direction, spare parts, documentation and packing requirements for long-distance shipment.

The package was manufactured, tested and prepared with project documents, inspection records and export packing support before delivery.

At A Glance
Location
West Africa
Project Year
2024
Product
High Voltage Switchgear
Industry
Mining
Project Type
EPC Project
Standards
IEC, Local utility requirements, Project specification
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Scope Of Supply

Equipment Supplied

Every unit delivered for this project, with quantity and configuration notes.

Substation

Outdoor package substation for mining site power distribution

Quantity: 2 sets

Integrated transformer, MV switchgear, LV distribution and auxiliary equipment according to project scope.

Oil-immersed Transformer

33kV oil-immersed distribution transformer

Quantity: 5 units

Outdoor transformer configuration with accessories, nameplate, protection devices and routine test reports.

High Voltage Switchgear

36kV medium voltage switchgear panels

Quantity: 1 lot

Configured for incoming feeder, outgoing feeders, metering and protection according to the project SLD.

Low Voltage Switchgear

Low voltage distribution panels for site auxiliary loads

Quantity: 1 lot

Prepared for mining camp, workshop and auxiliary power distribution loads.

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Technical Data

Key Ratings

Voltage, capacity, and protection parameters confirmed for this project.

Technical ratings for this project
Parameter Value Notes
Transformer Capacity 2500 kVA Main distribution transformer rating
Primary Voltage 33 kV Medium voltage side
Secondary Voltage 0.415 kV Low voltage side
Frequency 50 Hz According to project requirement
Vector Group Dyn11 Confirmed before production
Impedance 6% Confirmed according to system requirements
Cooling Method ONAN Outdoor oil natural air natural cooling
Installation Outdoor package substation Remote mining site installation
Ambient Temperature 45 C Considered for site environmental condition
MV Switchgear Rated Voltage 36 kV Medium voltage switchgear system
MV Switchgear Rated Current 630 A Main feeder rating
Short-circuit Current 25 kA / 3s According to project fault level requirement
Cable Entry Bottom entry Confirmed according to site cable trench arrangement
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Building To These Exact Ratings?

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How We Delivered

Challenge And Solution

The requirement on site, and how the specification, drawings, and production were supported.

The Challenge

Project Requirement

<p>The mining site required transformer and switchgear equipment suitable for outdoor operation, remote maintenance and long-distance shipment. Several technical and project items needed confirmation before production, including environmental design, transformer accessories, switchgear protection, enclosure protection, cable entry direction, spare parts, packing method and document submission schedule.</p>

Our Solution

What We Supported

Our engineering team reviewed the mining project specification, SLD and environmental requirements before preparing the package substation proposal. Transformer ratings, MV switchgear configuration, LV distribution arrangement, enclosure protection, accessory scope, packing method and documentation requirements were checked with the project team.

Based on the confirmed requirements, we prepared a practical transformer and switchgear package with technical datasheets, arrangement drawings, test reports, packing references and export shipment support for remote-site installation.

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Have A Tricky Approval Or Site Condition?

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Quality And Records

Testing And Documents

Inspection items and engineering documents prepared for this project.

Testing And Inspection

Routine Test FAT Test Report Provided Pre-shipment Inspection Mechanical Operation Check Secondary Circuit Check Power Frequency Withstand Voltage Test

<p>Routine tests and factory checks were completed before shipment. Transformer testing included voltage ratio, winding resistance, insulation resistance, applied voltage, induced voltage and oil-related inspection items. Switchgear and package substation checks covered mechanical operation, wiring, protection arrangement, insulation resistance, enclosure inspection and packing confirmation.</p>

Engineering Documents

Technical Proposal Product Datasheet General Arrangement Drawing Foundation Drawing Single-line Diagram Review Transformer Outline Drawing Switchgear Panel Arrangement Primary Schematic Secondary Schematic Control Wiring Diagram Terminal Plan Panel Schedule BOM / Component List CT / PT List Relay and Meter List Compliance Statement Technical Deviation Sheet FAT Procedure Test Report Installation Manual Operation & Maintenance Manual
Quality On Record

Want Test Reports And FAT For Your Order?

We arrange routine tests, witness inspection, and full document sets so your equipment ships with proof of compliance.

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See Your Build

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You get progress photos at production, testing, and packing stages so you track your order from factory to container.

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Export And Delivery

Packing And Shipment

Export packing, container loading, and nameplate records for this shipment.

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