NewElec’s two OLR 8 models are separate single-pole overcurrent and under load relays that assist in rapidly tripping a motor when its load has exceeded a user-selectable pre-set threshold or to protect a pump from running dry. Mechanical damage to couplings, chain conveyors, gearboxes and V-belts can be substantially diminished when such occurrences are a result of over torqueing. In a similar manner, pump equipment can be saved by tripping the drive motor when loading is diminished beyond a user-selected level.
Both relays are easy to use and fitted with latched diagnostic LEDs as well as early warning alarm relays. Both relays accommodate CTs with 1 A inputs.
Costly downtime is prevented and broken conveyor belts, snapped chains, coupling failures or even broken gearboxes are avoided. In some instances and with careful adjustments, the relay has been used to prevent crane overloading. It can be used in conjunction with any current range as an alarm/trip or current regulating unit. An easy to use load setting dial is calibrated from 30 to 120% of the primary current transformer and is used to monitor the load.
The over-torque relay has a trip delay setting dial calibrated from 1 to 10 s to overcome start inrush current trips. With a small surface mounted footprint of 52 x 102 mm, the OLR 8 incorporates an 11-pin plug-in base and is fitted with three LEDs which signal power on, overload and trip conditions. An additional feature allows for either automatic or manual only resetting options. The relay has a user-selectable 110 or 220 V AC auxiliary voltage supply.
Overcoming the bottling industry’s fragmented visibility Schneider Electric South Africa
IT in Manufacturing Electrical Power & Protection
Beverage bottling facilities are among manufacturing’s most energy-intensive environments, yet many still operate without granular insight into where that energy goes. Rezolia Muller-Potluri of Schneider Electric explains how tiered metering architecture and advanced
Read more...Schneider Electric introduces next-generation BlokSeT switchboard Schneider Electric South Africa
Electrical Power & Protection
Schneider Electric has launched its next-generation BlokSeT low-voltage switchboard in West Africa, offering high reliability, predictive maintenance capability and digital integration for critical infrastructure and industrial applications.
Read more...Powering South Africa’s renewable energy expansion
Electrical Power & Protection
ACTOM Distribution Transformers, the sole NECRT contract holder for Eskom, is powering South Africa’s renewable energy expansion through robust neutral earthing transformer solutions deployed across solar and wind projects in southern Africa.
Read more...You can’t digitise a blackout Schneider Electric South Africa
Electrical Power & Protection
Across East Africa, smart meters and AI promise cleaner, more reliable power, but digital tools cannot optimise a grid too weak to carry the load. Schneider Electric’s Symphrose Ochieng sets out why operators should strengthen physical infrastructure first, then add digital capability in phases.
Read more...Battery energy storage is key to powering South Africa’s manufacturing sector
Electrical Power & Protection
South Africa’s shift to renewables is creating a significant opportunity in battery energy storage, but local manufacturers face an uphill battle against cheap imports and stop-start demand. Richard van Moltke of ACTOM Static Power examines what it will take to build a sustainable local battery storage industry.
Read more...Decarbonisation is reshaping mining strategy in Africa Schneider Electric South Africa
IT in Manufacturing Electrical Power & Protection
Mining companies across Africa are embedding decarbonisation into operational strategy, driven by investor, regulatory and customer pressure to reduce emissions while improving resilience.
Read more...How to tell whether your mini-substation is new or refurbished
Electrical Power & Protection
Cosmetically refurbished mini-substations are being misrepresented as new equipment and sold back into the market, posing serious reliability and safety risks for mining, industrial and commercial operations. Trafo Power Solutions explains what to look for and what questions to ask before purchasing.
Read more...Optimising energy reliability for African manufacturing
Electrical Power & Protection IT in Manufacturing
Unreliable power can cost African manufacturers as much as 31% in sales. Behind-the-meter power offers manufacturers in sub-Saharan Africa control, visibility and resilience in their energy provisioning.
Read more...Electrical solutions for FMCG manufacturing giant
Electrical Power & Protection
An electrical upgrade at a leading fast-moving consumer goods facility demonstrates how ACTOM Kenya turned a fragile, reactive power infrastructure into a resilient, data-driven backbone for production. The project is also a case study in bridging legacy equipment with modern automation without disrupting operations.
Read more...Yokogawa digital plant to accelerate green hydrogen revolution Yokogawa South Africa
Editor's Choice Electrical Power & Protection IT in Manufacturing
Yokogawa explains how a digital plant approach and autonomous operations can integrate the full green hydrogen value chain, from renewable power generation to end-use applications, and why digitalisation and system integration are central to making green hydrogen viable in South Africa.
While every effort has been made to ensure the accuracy of the information contained herein, the publisher and its agents cannot be held responsible for any errors contained, or any loss incurred as a result. Articles published do not necessarily reflect the views of the publishers. The editor reserves the right to alter or cut copy. Articles submitted are deemed to have been cleared for publication. Advertisements and company contact details are published as provided by the advertiser. Technews Publishing (Pty) Ltd cannot be held responsible for the accuracy or veracity of supplied material.
printer friendly version