Electricity + Control November 2015

DRIVES, MOTORS + SWITCHGEAR

ROUND UP

Reliable protection for 3-phase LV motors

The modular MA electronic motor protec- tion relay from NewElec controls, monitors and protects the performance of 3-phase LV motors. The relay measures electrical motor variables such as current, phase unbalances, phase loss, earth leakage, earth fault, short circuit and voltage conditions. Protection is also provided against ther- mal overloads, locked rotor and running stall/jam protection. As the relay protects against short circuit faults, it automatically takes care of trip coordination so that the main contactor is not used to disrupt high- energy faults.

Designed for advanced motor protection, the MA comes complete with integrated current transformers with earth leakage core in the range from 0,5 to 250 A. The current range can be extended using interposing CTs. Individual fault status indication is pro- vided by LEDs for easy diagnostics. It also stores the last four faults with time and date stamping. Additional MA features include real time and date stamping recorded by the relay for the last four trips, a recording utility of actual RMS loads, thermal conditioning, mains phase voltage, line voltage, as well as status of digital inputs and output contacts.

The user has the possibility of expanding the unit for fieldbus communications via Profi- bus DP, Modbus RTU and Canbus protocols. Enquiries: Email sales@newelec.co.za

Acquisition BMG – Bearing Man Group - part of Invicta Holdings Limited, has acquired Hansen Transmissions South Africa (HIT-SA) from Hansen Industrial Trans- missions, part of the Sumitomo Group.This strategic acquisition - effective 30 September 2015- has been approved by the South African Competition Commission. “HIT-SA, which assembles and distributes Sumitomo and Hansen branded industrial gearboxes throughout Southern Africa, now forms part of BMG’s electromechanical division,” says Mark Barbour, BMG Business Unit Man- ager. “Through this acquisition, BMG broadens its mechanical drives range and strengthens its long term partnership with Sumitomo as the exclusive distributor locally of Sumitomo speed reducers”. Enquiries: Mark Barbour.Tel. 011 620 1500 or email markb@bmgworld.net

Fritz Fourie, Managing Director, Hansen Transmissions, Gavin Pelser, Managing Director: Engineering, BMG, Charles Walters, Chief Executive Officer, Invicta Holdings Limited, Byron Nichles, Chief Executive Officer, BMG and Shaun Dean, Chief Executive Officer, Hansen Industrial Transmissions.

ABB SACE legacy switchgear; can operational life be extended?

Certainly.

Many SACE air circuit-breakers have been installed in South Africa since their introduction in the early 1980’s. Durable construction and superior design keeps them functioning, however service is required to keep them functioning optimally. For additional information: www.abb.co.za/lowvoltage/service

ABB South Africa (Pty) Ltd. Low Voltage Products and Systems

Tel. +27 10 202 5880 E-mail: LP@za.abb.com

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