Electricity + Control November 2015

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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
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
ROUND UP DRIVES, MOTORS + SWITCHGEAR
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.