ABB Technology Event Abstracts Session 2

9.50am and 2.40pm

Addressing safety concerns through switchgear product design

Gilbert Zieleman, Design Engineer, Medium Voltage Products, ABB in New Zealand and Rex DeBruyn, Product Manager, Medium Voltage Products, ABB in New Zealand

Switchgear asset owners need to be aware of the effects of incident energy release in installations and the possible consequences for operators and public.

Arc Faults are a recognised hazard in distribution networks and can be potentially fatal to operators and public. For this reason, it is expected that current switchgear designs are tested for safety performance during internal arcing. Tests have shown that arc fault behaviour is dependent on a number of factors including the fault level, the fault duration, the enclosed volume, installation conditions and the design detail of the switchgear compartments with respect to containment and venting path.

Since the introduction of the IEC 62271-200 / 202, the focus of manufacturers has been on personnel and public safety. Secondary distribution ground mount switchgear is particularly challenging because they are installed in such a wide variety of situations. For example, indoor in substations or building basements, outdoor in packaged transformer substations, outdoor stand alone in public areas.

This presentation will cover arc phenomenon, OSH regulations and installation considerations, methods of reducing risk to a tolerable level, incident energy management through switchgear design, experience of compliance type tests performed by ABB for ring main units and compact secondary substations.

Innovative Power Protection ideas

Presented by Andrew Hiscock, Power Protection Sales Manager, and Debbie van der Schyff, UPS Business Development Manager, ABB in New Zealand

The electricity distribution system in New Zealand is very reliable, however events such as severe weather, accidents, animal interference with lines and construction can cause power quality events such as voltage sags and the occasional outage.  Voltage sags are the most common event and result in unexpected shutdown of production processes and disruption in commercial activities.  The impact from these events on business and industries typically include:  financial cost, equipment damage, product damage, loss of production, quality issues and may even impact the company’s reputation.

ABB has many years of experience in power protection in commercial and hi-tech industries from multi-billion dollar semiconductor fabrication plants, to Datacentres as well as MRI scanners in your local hospital.  Our solutions are applied at the low to medium voltage.

Learn more about storage-less power conditioning technology and truly redundant UPS – all solutions designed to guarantee the highest uptime for your business.

SynRM Motor technology – The next level of efficiency

Presented by Toni Niemi, OGP Project Manager, IEC LV Motors, South Asia Region, ABB in Malaysia 

It has never been so demanding on energy efficiency for all electrical equipment, especially in electric motors as it consumes  about two-thirds of all electricity used in the industry. By increasing efficiency – using more energy efficient motors – it would be possible to realise significant savings in energy consumption and reduction in carbon emissions.

Magnet-free synchronous reluctance technology can deliver similar benefits compared to more commonly known permanent magnet technology. Additionally, a synchronous reluctance motor is as easy to service and cost-efficient as an induction motor, making it an excellent technology alternative.

When comparing efficiency performance of different solutions it’s important to understand

values are compared against each other. Presently, only motor efficiency with sinusoidal supply at nominal speed and power and associated IE classes are standardized. In variable speed applications however, the efficiency of the whole motor+drive package is more important.


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