Large generator sets produce high levels of noise that must often be mitigated to meet national regulations and directives. This usually involves key decisions about the optimal generator set location and installation, how to design noise control systems and other factors, which is why it is important to conduct accurate noise level assessments timeously, before […]
Whether to use screw or reciprocating compressors in air conditioning or refrigeration applications is a decades-old question with no simple answer. The fact is, the correct choice depends on a range of factors such as application and operating conditions. Advances in reciprocating (or “recip”) compressors, however, may well add weight to the argument in their […]
Notes on providing lightning protection for LED mast lights with double or reinforced insulation; large masts fitted with supply distributors PVC masts and others. LED mast lights for street, walkway and open space lighting are mounted at light point heights of several metres to ensure large fields of illumination. This, however, is only possible if […]
This article explores how the cost of condition monitoring for motors can be optimised through examination of the value of each test performed. Part I of this article (see Vector, January 2019, page 24) explores reliability-centered maintenance; the ideal frequency of condition monitoring, the management of spares, assessment of motor efficiency and the risk of […]
An innovative digital lighting concept brings new splendor to the artistic treasure of the world’s largest basilica. The famous St Peter’s Basilica at the Vatican now shines in brilliant light following nearly 18 months of planning and the installation of a new LED lighting system. The entire lighting concept for the project was tailor-made by […]
Variable speed drives (VSDs) usually consist of a variable frequency source derived from the main supply by means of a DC converter. Techniques using magnetic coupling allow the motor to be run at its optimum speed while supplying a VSD to the load, as well as providing mechanical separation of motor and load. Magnetic couplings […]
To safeguard their future, mining companies must improve performance, cut production costs, reduce environmental impact, and increase automation. Mining companies face major challenges in terms of sustainable growth. As demand for commodities exceeds supply, mining companies search for new deposits in remote and inhospitable regions where production costs are high. In addition, they seek to […]
Special optical adhesives enable the encapsulation of LEDs, termination of optical fibres and the assembly of complex lens systems. Optical grade epoxies, silicones and UV curable compounds offer engineers great versatility for bonding, sealing, coating and encapsulation applications. These systems adhere well to diverse substrates and offer excellent temperature resistance, stress relief and protection from […]
This article explores how the cost of condition monitoring can be optimised through examination of the value of each test performed. Treating every motor on a site with the same degree of condition monitoring is neither necessary nor financially realistic. The reliability-centered maintenance (RCM) method [1] uses the answers to seven basic questions to determine […]
From the ICMEESA Archive In food processing applications, pyroclor-filled transformer units save space and curb the costs involved with cable installations. In a modern food factory where electric power may be required for boilers, ovens, dryers, refrigerators and furnaces, as well as for mixing, grinding, sorting and packaging machinery of all kinds, the cost of […]
