16 Project Updates
Planned maintenance ensures reliable electrical supply for Acute NHS hospital
WHEN AN ACUTE NHS HOSPITAL IN the Greater Manchester area recently needed to carry out planned ‘intrusive’ maintenance of its main LV switchgear, it called upon Quartzelec to carry out the task over two planned evening shifts. The building that required the maintenance is dual supplied via two ABB 1250 KVA dry resin transformers that supply two LV panels. Work was carried out over two planned evening shifts, allowing one panel per evening to be fully isolated, with all affected circuits being re-supplied via the other panel. The LV switchgear servicing, including the interrogation of all air circuit breakers, was achieved following a detailed switching program with assistance from the electrical site AP. Detailed recordings of the protective devices, ratings and settings were included, and a full report summary was issued upon completion. This included an introduction, results section, and summary of the overall condition of the switchgear. Also included as part of the works was thermographic imaging, which was captured before
isolating the supplies. All connections and torque settings were checked and inspected, and each cubicle was thoroughly cleaned. The client now has peace of mind knowing that its LV infrastructure is in good condition and remains fully compliant. “It’s not unusual to be called in by NHS Trusts at short notice to investigate and resolve electrical issues,” said Andy Taylor, Supervisor for Quartzelec’s Building Services Maintenance team who coordinated the project. “We endeavour to address issues before they cause serious risk to the hospital and regularly go that extra mile for our customers to ensure they remain operating at optimum performance and within appropriate safety parameters.” Quartzelec maintains a dedicated healthcare support team that can respond to critical issues, and all engineers are HTM
06-02 competent, plus collectively hold an array of safety and process compliance certificates needed to operate in specialist healthcare environments. www.quartzelec.com
Dry transformers enable production capacity expansion ELECTROLUX DO BRASIL S.A IS planning to expand its production capacity. For this to happen safely and effectively, the organisation has purchased two 34.5/11.9kV with 15MVA dry transformers from WEG to supply loads connected to more than ten transformers with a voltage class of 11.9kV, which are installed in the plant. One reason for specifying these transformers was their IP54 rating which makes them suitable for installation in unprotected environments, helping to
ensure low installation costs and greater ease of maintenance. Additional benefits of the transformers, which encouraged the organisation to specify the WEG products, were that they help ensure manufacturing process reliability and benefit from energy cost savings as well as power distribution consistency to avoid voltage peaks caused by the 11.9kV local network power supply. www.weg.net
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