A more economical approach to sensible pump motor protection
January 2007Operator Interfaces, Switches & Relays
The motor protection relay under discussion is likely to be more expensive than other less expensive products available on the market. According to NewElec, this is true at least in the short term because of the company's approach to not compromising on protection.
It is the company's opinion that combining a sensible and economical approach makes a perfect union. Here are some protection principles from which NewElec will steadfastly refuse to compromise upon on the lower end of the pump protection market:
* A fixed, non-adjustable 15 second cold IDMT thermal curve which reverts to a 5 second curve as the motor approaches normal full load running temperature.
* Full thermal memory at all times that will also protect the pump motor against cyclic overloading patterns.
* Locked rotor protection on start-up.
* Load loss protection with user-defined load loss detection thresholds and trip delays ranging from 1 to 10 seconds.
* Phase loss and unbalanced load protection.
Add latched trip indications for all faults, an optional auto reset feature (limited to three per hour) and a small neat DIN rail mountable enclosure makes for an effective protection device.
The company warns against cheap alternatives that offer non-sensible options such as user-selectable time based trip delays for overload protection regardless of current magnitude or duration, no thermal memory thus excluding cyclic overloading protection, or immediate overload reset that takes no consideration of motor cooling periods. Also consider the fact that there may be no guarantees and no service backup.
Multi-touch panel generation in a smart design Beckhoff Automation
Operator Interfaces, Switches & Relays
Following over 25 years of successful in-house panel production and 12 years of expertise in multi-touch design, Beckhoff is bringing out a new smart panel design, the Next multi-touch panel generation.
Read more...Simple, powerful illumination
Operator Interfaces, Switches & Relays
In applications needing quick, clear communication, the GS60 Pro Multicolour Guide Spotlight delivers powerful, easily configurable illumination and indication to reduce errors and improve productivity.
Read more...Status display for conveying sensor, machine and device data Turck Banner Southern Africa
Operator Interfaces, Switches & Relays
Enhance application accuracy and efficiency with the SD50 Status Display, which conveys sensor, machine and device data via text and multicolour LEDs.
Read more...Compact industrial switches
Operator Interfaces, Switches & Relays
The Hirschmann Bobcat Series delivers high-performance, compact industrial switches designed for real-time communication.
Read more...Ensuring industrial safety in mines with earth leakage protection NewElec Pretoria
Electrical Power & Protection
Mining operations are inherently risky due to the hazardous environment and complex machinery involved, making the implementation of earth leakage protection systems critical to ensuring the safety of miners and the integrity of equipment.
Read more...Power and control platform for complex applications Schneider Electric South Africa
Operator Interfaces, Switches & Relays
Schneider Electric has unveiled the latest device in its PowerLogic range of products, the PowerLogic P7 digital power and control platform. This was designed to offer the best performance in complex and high-demand applications, and is based on a visualisation-ready, next-generation platform powered by a single configuration tool, the PowerLogic engineering suite.
Read more...High-efficiency switching solutions
Operator Interfaces, Switches & Relays
Becker Mining South Africa has launched a new-generation energy distribution system that has been specially developed to enhance productivity and safety in the challenging conditions of local underground coal mines.
Read more...Motor protection relay front-end software NewElec Pretoria
Electrical Power & Protection
In the realm of motor protection for critical motor-driven applications, precision and reliability are non-negotiable. That’s where NewElec stands out. Its Motor Protection Relay Front-End software isn’t just another tool, it’s a game-changer that puts control firmly in your hands.
Read more...World-first solution for platinum miner ABB South Africa
Operator Interfaces, Switches & Relays
When a consulting engineering company approached ABB about a specific problem that its platinum mining client was experiencing at its smelter facility in the North West Province, it was an opportunity for the technology provider to showcase its innovation and adaptability in responding to specific customer requirements.
printer friendly version