Sparks Electrical News April 2015

motor control centres and motor protection 11

Significant uptake in demand for key products

applications at different fault levels and current ratings.” The maximum rating that all products have been tested at is 690 V + 5%@ 65 kA.“In addition we are in the process of locally developing theWEG range of fully withdrawable MCCs. This product range is suitable for all types of process type industries and will add great value to Shaw Controls’product range,”Ferreira adds. Enquiries: +27 11 723 6000

The E-Houses from Shaw Controls represent a particular innovation for the South African market in that they are a cost effective alter- native to traditional containerised solutions manufactured in either 6 mor 12 m standard marine containers.“The main benefit of the E-Houses is that they can be manufactured to customised dimensions, which is a testament to the flexibility of Shaw Controls.”Shaw Controls also suppliesWEGmodular VSDs for loads of up to 2.5 MW at 690 V.

manufacturing facilities in South Africa that we are in the process of expanding as we increase our footprint in Africa,”explains Louis Meir- ing, CEO of the ZestWEG Group. Bevan Richards, managing director of Shaw Controls, reveals that next year it will embark on the design and establishment of a 4 000 m 2 standalone E-House and container conversion facility. “The ZestWEG Group as a whole has the management team and overall company structure in place to be able to handle projects of a

“Whereas modular VSDs were previously built and assembled byWEG of Brazil, we as the South African armofWEGwill in future develop the enclosures and populate themwithmodu- lar VSD components from WEG,”Richards reveals.“The advantage of these modular VSD products now being assembled in South Africa is that it represents a substantial reduction in the lead time of any project.” Santos Ferreira, product development specialist at Shaw Controls, reveals that all the company’s products have now been tested to the latest IEC 61439-1 standard. “We have developed various ranges of our switchboard products, namely SC 100, SC 200 and SC 300, for various

Lebo Ntete in the dedicated electrical workshop for the production of main and sub distribution boards at Shaw Controls.

SHAWControls, a company of the ZestWEG Group, has seen a significant increase in the demand for key products such as electrical houses (E-Houses), fully withdrawable motor control centres (MCCs) andmodular variable speed drives (VSDs). This has resulted in the Zest WEG Group committing to a major expansion drive at Shaw Controls as the Group expands its manufacturing capability in order to boost its presence in the local market and also in Africa, which is perceived as a major growth area. “While the ZestWEG Group is well known for distributing one of the largest electric motor ranges in the world fromWEG of Brazil, our com- prehensive product line-up includes switchgear, VSDs, MCCs, gensets and renewable energy solutions. We also have three fully fledged

much larger nature and to provide the customer care needed onmultiple projects for different customers, and to do so efficiently and cost effec- tively.”In addition, Shaw Controls is in the process of establishing a centralised bulk store for the receipt and issue of all goods in line with its new inventory control system.“We are fully committed to the ISO 9001 process.” Richards says that the growth and expansion at Shaw Controls dovetails with the overall strategy of the ZestWEG Group.“We are integrating our product range with those of the other Group companies involved in large scale turnkey projects. This represents a huge opportunity for us to add value to our own product range by capitalising on the knowledge and experience of the entire Group.”

Improved protection benefits

door provided a window cut out is made available through which the infrared communication can take place, improving operational safety while reducing downtime. Improved protection benefits include earth insulation lockout (prior to starting themotor) and earth leakage protectionmay be selected as instantaneous or IDMT with sensitivities in the range from30 to 1 000mA. The relays offer an array of features related to dry-run protec- tion, such as user-selectable priming time, dry run detection by power factor measurement or current only, as well as optional user-selectable automatic motor re-start with delay timer on dry load trips.

NEWELEC’S KE range of microprocessor-basedmotor protection relays are ideally suited for motors used in air-conditioning, compressor, ma- chine, conveyor, pumps and crusher applications. With a small footprint, the KE relays feature integrated CTs up to 50 A with extendable current ranges using interposing CTs. A door-mounted MMI, fittedwith an infrared sensor, permits accessing the relay settings. Fault and event records can be accessedwithout opening the cubicle The relays offer drive power measurement to assist in pump efficiency and plant energymanagement programs. To assist maintenance personnel with fault finding, the relays have a time and date stamped event (2 000) and fault (60) recording facility. NewElec’s free issue, easy-to-use intuitive configuration software provides extensivemonitoring, logging and simulation capabili- ties to assist with integration, pre-testing, commissioning of the drive and training. Enquiries: +27 12 327 1729 New range of switchgear supports local electricians IS09000-certified plants belonging to Schneider

SCHNEIDER Electric has launched its Easy9 switchgear, a new range to help electricians with the provision of reliable switchboards. According to Christo Janse van Rensburg, product manager: final distribution, at Schneider Electric South Africa, Easy9 answers the need for electricians to have access to robust products that are widely available, andwill also help them to complete their installa- tions swiftly and professionally. The range covers miniature circuit breakers, residual current circuit breakers, surge protection devices, comb busbars, and switchboard enclo- sures. All Easy9 products aremanufactured in

Electric and are approved by independent authorities as compliant with local electrical safety standards. “We work closely with electricians worldwide to help bring safe electricity to homes and build- ings around the globe.With Easy9 electricians can take pride in delivering the enhanced safety and peace of mind their customers deserve. An advantage too is that it is a high-end device available at amid-range price,”adds Janse van Rensburg. Enquiries: +27 11 254 6400

The GRID What is it? PROVEN RELIABILITY AND READILY AVAILABLE SWITCHGEAR TO MEET ALL YOUR NEEDS

The GRID is a graphic element that helps to create the ZEST indentity. Derivative of the proportions of the logo, it is based on a proportion of width and height of 2-to- 3. The distance between the GRID elements is 1/3 of the height of an element.

LV Switchgear Range Awarded the SABS mark

www.zest.co.za +27 11 723 6000

april 2015

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