As Sandton anticipates the completion this year of the Leonardo, the top end mixed-use skyscraper being constructed by Aveng-Grinaker LTA, Level 1 BBBEE-rated Zest WEG Group has supplied generator sets to keep lights on during outages. The iconic structure, that will dominate the skyline as the tallest building in Africa, is being built for 75 on Maude, a partnership between Legacy Group and Nedbank.
According to Craig Bouwer, projects and product manager at Zest WEG Group genset division, the commissioning of the units was undertaken in the first quarter of 2019 with practical completion in the second quarter of 2019. This follows the original awarding of the tender in November 2017.
“We are proud to have designed, manufactured and supplied the two 2000 kVA, 11 kV generator sets which are installed in the Leonardo’s dedicated plant room on ground level,” says Bouwer. “Our contract included delivering the units to site and placing them in position, which was done in September last year. We were also responsible for the complete installation, testing, commissioning and handing over to the client in full working order.”
The gensets will provide the building with emergency power backup and comprise prime rated Mitsubishi powered diesel generators coupled to WEG alternators. To reduce noise levels to local council requirements, Zest WEG Group supplied and installed inlet and outlet splitter attenuators. The fuel storage and transfer system ensures eight hours of operation, with bulk and day fuel tanks installed in compliance with local fire regulations.
The company also installed medium voltage (MV) generator protection and a control panel, as well as a main MV distribution panel for the building, comprising six tiers for all incoming supply and feeder breakers. All the related cabling for the MV and low voltage (LV) reticulation were also provided for the generator sets, fuel system and auxiliary control equipment.
Significantly, Zest WEG Group holds a Construction Industry Development Board (CIDB) rating of 6EB for electrical engineering work in buildings, as well as a 9EP rating for infrastructural electrical engineering work.
“We conducted full in-house MV testing of the system at our modern Cape Town facility before delivery to site,” Bouwer says. “We were assisted by our transformer division with the supply of three 500 kVA, 11 kV to 400 V step-down transformers to enable load testing at 400 V. This allowed us to conduct functional and load tests on the generator sets in our workshop, testing them individually as well as in full synchronisation and load share operation.”
He adds that the location of the generator plant room and the physical size of the generator sets meant that the generator sets could not be installed as fully assembled units. “This challenge was overcome by disassembling the generator sets prior to delivery and re-assembling them in the generator plant room,” he concludes. “Due to the weight of the equipment, special rigging equipment was required inside the plant room to facilitate the re-assembly process.”
Power supply with scalability optimised Schneider Electric South Africa
Electrical Power & Protection
Schneider Electric has introduced the Easy UPS 3-Phase Modular to the South African marketplace. This robust uninterruptible power supply (UPS) is designed to protect critical loads while offering third-party verified Live Swap functionality.
Read more...Prioritising arc flash safety Comtest
Electrical Power & Protection
Comtest has developed a range of thermal imaging and wireless testing tools from Fluke, designed to ensure safety is the top priority for engineers working in potentially dangerous arc flash zones.
Read more...Monitoring the voltage drop in cables Turck Banner Southern Africa
Electrical Power & Protection
With its new M12Plus connectors, Turck Banner is directly shifting the condition monitoring of cables subject to severe stress to the connection technology. The connectors, which come with voltage and current monitoring and a Bluetooth chip, enable measured voltage and current values to be sent wirelessly to a controller.
Read more...Mesh networks: a multidirectional electrical superhighway Schneider Electric South Africa
Electrical Power & Protection
Today, many power industry stakeholders are faced with mounting requirements for improved grid reliability, resilience and distribution efficiency. It’s a challenge which requires power service providers to rethink their infrastructure. Enter mesh networks, which can overcome the limitations of traditional star networks.
Read more...Versatile flexible copper busbar
Electrical Power & Protection
Referro Systems specialises in the supply and support of industrial electrical, automation and global software and hardware brands, and is now able to offer the Cubic range of Cu-Flex flexible copper busbars.
Read more...Trafo Power Solutions upgrades DRC mine transformers
Electrical Power & Protection
With its experience in Africa and its agility in executing projects rapidly, Trafo Power Solutions is supplying three mini-substations and two transformers to a copper-zinc mine in the Democratic Republic of Congo.
Read more...Acquiring locally-manufactured transformers ACTOM Electrical Machines
Electrical Power & Protection
Speed and efficiency are of the essence in the fast-evolving power generation and distribution space; but a significant challenge is the prolonged lead times associated with acquiring transformers – key components in any electrical infrastructure.
Read more...Seaward testers power PV specialists Comtest
Electrical Power & Protection
One of Asia’s leading clean energy specialists, Solarvest, uses the latest electrical safety test equipment to ensure the solar photovoltaic (PV) installations it services and maintains operate at peak performance levels.
Read more...Multi-purpose contact block
Electrical Power & Protection
The TME catalogue has been expanded to include products from Schlegel. This German, family-owned company has been specialising in the production of high-quality electromechanical components for almost 80 years.
Read more...ACTOM supplies transformer units to Kamoa Copper Mine ACTOM Electrical Machines
Electrical Power & Protection
ACTOM Distribution Transformers, recently secured an order for the supply of its neutral electromagnetic couplers, with earthing resistors, and an auxiliary transformer) to Kamoa Copper Mine in the DRC.
printer friendly version