Genset solves hospital’s standby power needs

24th July 2020

     

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A generator set (genset) installation at a Cape Town private hospital will provide a plug-and-play solution that is said to offer high reliability and minimal downtime.

The genset was designed to suit the hospital’s severe space constraints and the generator, transformer and remote radiator were built into special International Organization for Standardization (ISO) shipping containers in a double-stack configuration.

The contract undertaken by Zest WEG also included the refurbishment of the client’s existing 1 000 KVA 400 V MTU open-type generator.

According to Zest WEG, the new genset expands the hospital’s standby generating capacity to 1 MVA continuous rating, allowing 100% of the institution’s functions to continue as normal during periods of load-shedding. Reliable supply was key to the hospital’s safe and efficient operation, whether from mains or back-up supply, explains the company.

To reduce the project lead time as much as possible, the delivery of certain imported components was arranged in advance. The containerised solution was constructed and extensively tested at the company’s genset manufacturing facility, in order to save time during installation.

A dry-type step-up transformer allows the generator to connect to the 11 KV council electricity supply to reduce hospital downtime during commissioning. The resin-sealed transformer aims to provide a long-lasting solution with low maintenance and a high safety factor owing to the absence of oil as a coolant.

In addition, the hospital’s proximity to a residential area meant that the noise level of the generator had to be kept within strict limits. This requirement was achieved during testing, with the noise level kept within 65 dB at a distance of seven metres.

In addition to conducting a complete engine rewiring, Zest WEG also upgraded the generator controller, aimed at giving the customer improved ability to monitor the generator’s operation during load-shedding. The modern controls are said to help protect the generator and optimise the lifespan of critical equipment.

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