Shaw Controls, a company within the Zest WEG Group, has extended its product offering to encompass low voltage (LV) and medium voltage (MV) applications. It manufactures switchboard panels and control systems from 24 to 36 000 V (36 kV) for the industrial, mining and infrastructure sectors.
“Shaw Controls offers a complete product line from MV switchgear to LV MCCs,” says automation & systems director, Valter Luiz Knihs. These locally manufactured products are independently certified in accordance with the IEC 62271-200 and IEC 61439-1/2 standards. According to IEC specifications, LV covers applications up to 690 V, while the MV range is from 1 kV up to 52 kV. In addition, Shaw Controls has recently received ISO 9001 accreditation from Bureau Veritas.
LV switchboard panels range from SC 100, SC 200 to SC 300 models, which can be configured for various applications, fault levels and current ratings. A recent addition to the Shaw Controls product range is the CCM 03 ZA withdrawable MCC which is an already well-established product of WEG Brazil. This highly successful MCC solution will now be manufactured in South Africa.
All products include both a mechanical and electrical interlock system to ensure maximum safety, while the construction itself is robust. Switchgear panels are manufactured in bent steel profiles and enclosed on all sides by steel plating. Over-pressure relief devices in the top provide for pressure relief in the event of internal arc. Shield-type MV switchgear have metal divisions separating the compartments.
The general busbar configuration comprises one or more rectangular bars, manufactured from electrolytic copper with tin-plated fittings. The LV compartment is located in the upper front part, which houses the measuring instruments, protection relay, terminals, thermostats and contacts. This is completely isolated from the MV via a steel plate, with its own closable door.
The Zest WEG Group recently also announced a significant expansion of Shaw Controls’ manufacturing capabilities. This is to cater for the significantly extended product range as well as the increased demand for Shaw Controls’ E-Housing solutions. Shaw Controls will also be able to leverage off the Zest WEG Group to offer a total solutions package for its customers’ complete electrical requirements, from switchboard panels and control systems to transformers, switchgear, MCCs, distribution boards, motors and also full installation.
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