EMX3 saves CHI from salt mines

1st Quarter 2009 Electrical switching & drive systems & components

CHI Engineered Solutions recently received an order in excess of R6 million from consultants Le Roux Boutel and Associates for the supply of a motor control centre for the control of UraMin Namibia’s Desalination Plant.

The application entails the control of nine 750 kW, 690 V, 702 A, 2-pole motors driving directly coupled centrifugal pumps, which require consistent extended acceleration. Ralph Real, CHI product manager, comments that, “This could have posed a challenge as the load may vary slightly causing the motor to stall or accelerate faster than expected. However, it was a control challenge easily met by using our new EMX3 soft starters.”

The EMX3 soft starters with XLR-8 adaptive acceleration offer extensive motor protection and customisable programmable I/O.

Using adaptive acceleration starting provides quick smooth initial acceleration from zero speed. The EMX3 then continues to accelerate the motor to full speed using the early acceleration profile within the programmed start time. Real says, “This early acceleration profile eliminates the end of ramp ‘over acceleration’ that can be experienced with constant current starting, and can cause unwanted pressure surges.” Any gradual load changes are accommodated by the EMX3 as it fine tunes itself to the motor’s characteristics during each start.

Apart from the adaptive acceleration the EMX3 features programmable I/O, a customised panel mountable IP65 keypad and enhanced functionality. Installed costs can be reduced and installation simplified by mounting the keypad display unit remotely on the panel door where the four line LCD display can provide extensive status information which would normally require additional investment.

For more information contact Rob Hare, CHI Control Components, +27 (0)11 824 7400, [email protected], www.chicontrol.co.za

Further reading:

Magma X100 delivers AMB systems for wide range of industrial machinery
Electrical switching & drive systems & components
SpinDrive launches Magma X100 controller, bringing active magnetic bearing technology to a new generation of industrial applications. The Magma X100 expands SpinDrive’s oil-free, frictionless AMB technology to applications below 150 kW, unlocking new addressable markets.

Read more...

---

Mammoet completes major bridge replacement at Amsterdam Centraal Station
Electrical switching & drive systems & components
Mammoet completes the second of five major bridge replacements at Amsterdam Centraal Station, transporting steel deck sections by water to keep the station open throughout the works.

Read more...

---

Compressorless hydrogen turbine generates electricity using detonation waves
Electrical switching & drive systems & components
Researchers at the Karlsruhe Institute of Technology (KIT) have demonstrated a hydrogen gas turbine that generates electricity without a mechanical compressor.

Read more...

---

Why lubrication fails in mining and what to do about it
Editor's Choice Electrical switching & drive systems & components
Lubrication Engineers explains the recurring failure points behind mining lubrication problems and how the right product, storage and application practices can improve equipment reliability.

Read more...

---

Echain protects cables in cleanrooms
igus Electrical switching & drive systems & components
Advanced polymer manufacturer igus has developed a new cleanroom energy chain with an innovative guide system that allows for abrasion-resistant travel over distances of up to 30 metres.

Read more...

---

PowerFlex drives cut energy use by up to 30% amid rising costs
Electrical switching & drive systems & components
Rockwell Automation’s PowerFlex 755TS variable frequency drives are delivering energy reductions of 10 to 30% in Africa’s industrial operations, with adaptive control and predictive maintenance features that cut downtime by up to 50%.

Read more...

---

Next-generation oil-free motor systems with active magnetic bearings
Electrical switching & drive systems & components
WEG and SpinDrive are collaborating to integrate SpinDrive’s AMBs and built-in IoT condition monitoring into WEG’s market-leading electric motor offering, creating an oil-free, maintenance-free drive solution.

Read more...

---

Direct drive with integrated control
Vepac Electronics Electrical switching & drive systems & components
The PSD 40 direct drive is a mechatronic system with integrated control, bus interface and absolute measuring system, with no battery required.

Read more...

---

AI-powered on-premises analytics for industrial drives
Siemens South Africa Electrical switching & drive systems & components
Siemens is introducing a new on-premises analytics solution for industrial drive systems. The software enables users to evaluate drive data entirely within their own infrastructure and meet stringent data-sovereignty requirements.

Read more...

---

Hydrostatic machine base for ultra-precision grinding centre
Electrical switching & drive systems & components
Hyprostatik Schönfeld has developed a high-precision hydrostatic machine base for a new ultra-precision grinding centre for Optotech. The machine platform enables a previously unattainable combination of dimensional accuracy, dynamics and surface quality in the ultra-precision grinding of optical surfaces.

Read more...

---