Switchgear: To retrofit or to replace?

  by Hal Theobald, Schneider Electric Nothing in an industrial facility operates without a reliable flow of electricity and proper maintenance for the switchgear and switchboards which distribute electricity through the power system. Switchboards are more commonly used in commercial and light industrial applications while switchgear is usually specified in heavy industrial applications where the […]

Bearing currents in modern AC drive systems

  Information from ABB High-frequency (HF) currents flowing through motor bearings cause premature bearing failure but this can be remedied with HF bonding connections, low impedance path and symmetrical multicore motor cables. Download the pdf  

Unpacking the air circuit breaker – applications and development

by Paul Louw, ABB The development and applications of low voltage electrical circuit breakers, from the post-World War II days to the incorporation of the de-ionisation chamber in circuit breaker design in the 1940s, and the development and applications of the air circuit breaker. Reconstruction after World War II resulted in the modernisation of industrial […]

Industrial automation explained

by Gary Wilson, Siemens A basic guide to how switchgear, instrumentation and variable speed drives integrate with software and control systems to create industrial automation. The word “automation” means to control an industrial machine or process without human intervention. In this article, we focus on factory and process automation. Factory automation In factory automation, field […]

Automatic energy optimisation for efficiency, precision system control

  Information from Danfoss Drive manufacturers have attempted to improve the low speed efficiency of motors, but most products require tedious manual adjustment. “Automatic energy optimisation” offers a solution. Download the Pdf    

Energy efficiency for machines: the smart choice for motorisation

  Information from Schneider Electric Machines are designed according to performance criteria and productivity but the rising cost of energy demands new strategies in terms of machine design. Download the Pdf

A theoretical outline of selectivity

Information from ABB Selecting the protection system for electrical installations is fundamental to correct economical and functional service and to reduce problems caused by abnormal service conditions or actual faults. Please download the PDF

Predictive diagnostics for switchgear

Information from Eaton Corporation Advances in materials science, designing and in manufacturing process made medium voltage switchgear reliable, but insulation failures continue to happen, often resulting in equipment damage. Please download the PDF