Electricity and Control March 2025

Transformers, substations + the grid

dissipate heat more e†ectively. The company also addresses extreme temperature conditions. For instance, in climates where sub-zero temperatures pose risks of condensation, additional heating facilities are incorporated into the design of the enclosure. “Condensation is a key concern in intermittent operations where significant overnight temperature drops occur,” Claassen explains. “Our designs mitigate this risk, ensuring reliable performance even in such challenging environments.” Tailored solutions Working closely with TMC Transformers, Trafo Power Solutions leverages advanced engineering and manufacturing standards to create tailored electrical power solutions for its customers. Each design is customised to meet local environmental conditions, whether for mining, industrial or renewable energy applications. “Our holistic approach ensures that every transformer and its enclosure work seamlessly together, meeting the most stringent safety, e†iciency and durability requirements,” says Claassen. Dry-type transformers, with their versatility and safety,

continue to redefine the possibilities for outdoor applications. With the right IP-rated enclosures and innovative cooling solutions, dry type transformers can deliver reliable and sustainable performance in the most challenging environments. A dry-type transformer supplied by Trafo Power Solutions in IP65 rated enclosure.

For more information visit: www.trafo.co.za

Technology solutions for Ugandan substations Transformers, substations + the grid: Products + services

support continuing economic growth. The ABB-built substations will help address current capacity constraints and enable a more reliable power supply. One of the projects involved the upgrade of the 33/11 kV substation in Hoima, in the Bunyoro region, with gas insulated switchgear, a substation SCADA system and a dc charger system. Bunyoro’s oil industry is centred around the Albertine Basin in Uganda, which holds significant oil and gas deposits. These draw attention and investment and are driving various infrastructural developments. Thevar commented: “The upgraded Hoima substation will support Bunyoro’s developing oil industry. We completed the project in a short timeframe, airli–ing the ABB switchgear and installing it at the substation to meet customer requirements e†iciently.” ABB has also built the Jinja and Matugga substations to meet regional power needs. UMEME recognises that an e†icient power distribution network supports growth, development and improved living standards. ABB’s solutions at the three substations will enhance reliability and productivity in the distribution network, reducing power outages and allowing businesses and households to operate smoothly. An uninterrupted electricity supply will also contribute to improving quality of life, attracting further investment, facilitating technological advances and boosting economic growth. Selestino Babungi, Managing Director of UMEME, said: “ABB has been a key partner in supporting our utility sector. The substations powered by ABB’s solutions will help us provide electricity to surrounding areas and upli– Uganda’s overall economic activity.”

Last year, ABB delivered solutions for three substations in Uganda run by the country’s leading utility, Umeme Limited (UMEME). The utility manages and operates the state-owned and leased electricity distribution network assets. “We have been working in Uganda since 2005 to strengthen the country’s power distribution network, providing electricity to commercial and residential establishments,” said Gunasekaran Thevar, Managing Director East Africa for ABB Energy Industries. “These new projects strengthen our support for Uganda’s utility sector.” The projects are part of a broader initiative to improve the country’s electrical infrastructure and power distribution network, in order to ensure robust power infrastructure to

ABB’s substation technologies are helping to deliver a reliable and e icient power supply in Uganda.

For more information visit: www.abb.com

MARCH 2025 Electricity + Control

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