Motion Control & Drives


Zest WEG helps power Kipushi’s new dawn

September 2023 Motion Control & Drives

As part of Ivanhoe Mines’ refurbishment of the historic Kipushi Zinc-Copper Mine in the Democratic Republic of Congo, Zest WEG will be supplying a range of electrical and energy solutions.

According to Luveshen Naidoo, business development external sales engineer for Mining and Industrial at Zest WEG, this includes a 14 MW power plant, motor control centres, WEG medium voltage (MV) variable speed drives (VSDs) and a WEG 1200 kW MV motor for the mine’s ball mill. The company is also the preferred supplier of low voltage (LV) motors, and will supply these to a range of mechanical OEMs servicing the mine. Delivery of the equipment is expected to begin in the third quarter of 2023.

“Our diesel-powered plant, which will provide the mine with backup energy, has been designed to comprise 12 generator sets – each rated at 1587 kVA and 400 V,” says Naidoo. “Assembled at Zest WEG’s specialised Cape Town facility, the plant includes MV switchgear, six 3150 kVA ONAN type 400V/6,6 kV step-up transformers, a 40 000 litre fuel tank and an automated fuel system.”

He explains that splitting the plant design into smaller generating units ensured engines and alternators were readily available, securing a quicker delivery time. The configuration of the plant in this way also gives the mine greater energy security in the case of maintenance or breakdown. The gensets can also be transported to site using conventional trucking, without the need for abnormal load vehicles.

The MCCs are being supplied for use in an established substation on the Kipushi Zinc-Copper mine, and for a containerised substation elsewhere on the site. To accommodate space constraints, the MCCs are designed for a back-to-back configuration with a compact bucket size. This ensures that the equipment will fit in the available space, while still meeting the client’s specification and stringent IEC standards.

For the mine’s SAG mill, Zest WEG is providing the WEG W60 MV motor rated at 1200 kW – a robust unit for the demanding applications and aggressive environments found in the mining sector, says Naidoo. The reduced motor weight holds distinct benefits including a compact base plate or plinth onto which it is mounted, thus lowering installation costs. The motor’s IP55 rating ensures the motor is well protected from dust or water ingress.

To meet the client’s needs for the MV VSD to drive the ball mill motor, WEG’s MVW3000 unit is being supplied. This has a compact design, with an integral dry-type transformer. To facilitate the dissipation of heat, Zest WEG designed a ducting system for this 1200 kW VSD, which will reduce the need for cooling of the substation.

As the client’s preferred brand of LV motors, the WEG W22 motor is being made available to Kipushi’s mechanical supply OEMs. Among the key benefits of this WEG IE3 motor is its energy efficiency. This preferred brand strategy makes it more cost effective for the mine to keep the necessary consignments of spares for maintenance and servicing.

In putting together its proposals for the client, Zest WEG worked closely with the engineering consultant, METC Engineering in the detailed design stage. First-line support for Zest WEG’s equipment will come from Panaco, the company’s value added reseller in the DRC. The Panaco team can conduct site visits and technical investigations, and has a substantial in-country stockholding to ensure rapid availability of key equipment.

“Our partners at Panaco can generate technical reports to share with Zest WEG, to ensure we can provide accurate and necessary specialist support,” says Naidoo. “We have an aftersales team that can deliver support and solutions remotely or by travelling to site.”

He adds that Zest WEG’s ISO9001 quality management systems underpin the high quality standards in all its products, and the company is audited annually to maintain this compliance. “We also constantly work at reducing the environmental impact of our production processes with regard to our usage of natural resources and the generation of waste and emissions,” he concludes.


Credit(s)



Share this article:
Share via emailShare via LinkedInPrint this page

Further reading:

Future-proofing SMEs with cobots
Omron Electronics Motion Control & Drives
Many countries around the world are likely to experience skill shortages over the coming decade, especially technical specialists. At the same time, product lifecycles are becoming shorter. Collaborative robots are easy to set up, and offer a quick and cost-effective solution.

Read more...
Flexible transport solutions for materials handling
Omron Electronics Motion Control & Drives
Omron has added a Selectable Autonomy functionality to the core software for its line of autonomous mobile robots

Read more...
Sun carries the load
Motion Control & Drives
When valuable lives are hoisted in the air, reliable load holding technology is at its utmost importance. That’s why you can count on Sun’s excellent load holding cartridge valves.

Read more...
Latest trends in pneumatics systems
Motion Control & Drives
Online teaser: There is a misconception that there is not much innovation in the pneumatics field, but a closer look reveals otherwise.

Read more...
Hägglunds Drives at Botswana exhibitions
Motion Control & Drives
Hägglunds Drives South Africa recently participated in the Botswana Mining and Technical Exhibitions.

Read more...
Agricultural chain solutions
SKF South Africa Motion Control & Drives
SKF agricultural roller chains and special combine, baler and drive chains are used extensively in the agricultural industry on a range of machines and equipment that includes combine harvesters and headers, planters, feed mixers, and balers.

Read more...
New smart, connected crane
Motion Control & Drives
Konecranes has launched its flagship Konecranes X-series industrial crane, the successor to its popular CXT model. It has a new compact design and safe, reliable technology that, thanks to its wireless upgrade capabilities, can adapt to customer needs now and in the future.

Read more...
Bosch Rexroth Africa strengthens its offering
Motion Control & Drives
Hydraulic and Automation Warehouse (HAW), a Bosch Rexroth Africa group company, has incorporated Power Team SA’s SPXFLOW and Bolting Systems into its offering.

Read more...
Lubrication system for Moroccan paper mill
SKF South Africa Motion Control & Drives
SKF enhanced personnel safety and increased machine reliability boosted uptime, and delivered substantial time and cost savings for a leading paper mill in Morocco with the installation of a complete Maxilube lubrication system on a paper machine.

Read more...
Revolutionising warehouse operations
Motion Control & Drives
With the warehouse industry requiring ever-greater efficiencies, Toyota Material Handling has introduced an articulated forklift truck that revolutionises warehouse operations, and promises heightened agility, unmatched precision, and elevated safety standards.

Read more...