A range of electronic motor protection and control relays designed to protect pumps and motors from a variety of faults is available from NewElec. The K series is aimed at pump users and consultants who specify protection requirements for pumps.
They incorporate features such as dry-run protection and phase reversal protection, which are basic requirements for the protection of pumps. A model exists for every budget. The more upmarket models include built-in features that allow for a user-selected pump priming time, as well as a user-selectable pump operating time slot. Automated re-start times for dry-run trips are available, together with selectable automatic overload trip resets. A useful feature on some models permits the user to measure dry-running condit-ions by means of power factor measurements instead of conventional current measurement so that greater accuracy can be achieved.
The range includes relays with the most basic features that need manual adjustment directly by the user, through to the more sophisticated that can only be programmed by the supporting software, thereby avoiding possible setting interference by users. This includes the monitoring of statistical information such as the number of starts, trip faults and pump efficiency. Motor protection is achieved by the usual current measurement methods and user-selectable phase voltage measurements. Some of the relays in the range also include earth leakage protection, as well as earth insulation lock-out protection. The range is very user-friendly and has no limits on current range. In order of sophistication, the relays are called KB, KA, KC, KD and KE.
South African businesses can alleviate energy price crisis
Electrical Power & Protection
While grid instability remains a concern, the immediate and most critical driver of South African commercial and industrial investment in renewable energy is the escalating cost of electricity.
Read more...Real-time modelling is the key to a resilient, bi-directional energy grid Schneider Electric South Africa
Electrical Power & Protection
Utilities and municipalities are facing a challenge as the country’s legacy power grid, engineered for one-way energy delivery from centralised suppliers to end-users, must rapidly evolve to meet a new paradigm.
Read more...Shielding data centre growth from the looming power crunch Schneider Electric South Africa
Electrical Power & Protection
Today’s digital economy is placing unprecedented strain on the power grid. The good news is that these challenges are not insurmountable. By adopting proactive strategies such as alternative power sources, infrastructure planning and software, operators can secure capacity, build resilient facilities and scale sustainably.
Read more...Circuit breaker innovations Schneider Electric South Africa
Electrical Power & Protection
Recent advancements in circuit breaker technology have seen a major step forward in setting new standards for efficiency and sustainability in data centres, industrial and commercial infrastructure.
Read more...Common battery tester errors and what they mean Comtest
Electrical Power & Protection
Battery testers help quickly assess battery health, diagnose issues, and determine whether a battery needs a charge or replacement. This guide covers some of the most common battery tester errors, what they mean, and what can cause them.
Read more...Cathodic protection design considerations that influence ESG outcomes Omniflex Remote Monitoring Specialists
Electrical Power & Protection
Major infrastructure like wharves, bridges, pipelines and tanks are at constant risk of corrosion. David Celine, managing director of cathodic protection specialist Omniflex, explains how CP system design can support ESG commitments, while simultaneously lowering costs and improving maintenance capabilities.
Read more...Recovering condensate and waste heat
Electrical Power & Protection
According to Associated Energy Services, strong partnerships with thermal energy users optimise opportunities to benefit from condensate return. waste heat recovery and the prevention of system contamination.
Read more...Quantum engine powered by particle entanglement
Electrical Power & Protection
In a landmark achievement that signals a new era in energy research, a team of physicists in China has carried out the first successful test of a quantum engine powered by particle entanglement. This technological breakthrough represents a fundamental shift in our approach to energy production.
Read more...Advancing sustainability in South Africa’s fruit industry Schneider Electric South Africa
Electrical Power & Protection
Schneider Electric, together with Technoserve Medium Voltage, has implemented its advanced SF6-free MV switchgear at Two-a-Day situated in Grabouw in the Overberg district.
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