Posts tagged as Mike Rycroft

Causes and control of electrical machine vibration

  This article examines the causes of electrical machine vibration, the effects of vibration, and means taken to mitigate vibration. All rotating machines, no matter how well designed and manufactured, exhibit vibration of some form when operating. Excessive vibration can cause damage to the machine or reduce its lifetime, as well as damage to other […]

Man-made disasters and resilient home power systems

  Resilient power systems are usually taken to mean grid power systems that can survive natural disasters and provide power to critical sites under extreme conditions. This requirement emerged in the USA after Hurricane Katrina and is now being legislated into many states. In South Africa, we are not subject to such devastating natural disasters […]

Amorphous core material offers lower losses for distribution transformers

  Traditionally transformer cores have been constructed of grain orientated steel alloys, but a new material which has an amorphous structure is being used increasingly in distribution transformers. The material offers advantages over traditional materials and transformers using the core material are being used in a wide range of applications. Distribution transformers constitute the largest […]