What are harmonics? Harmonic distortion is a form of electrical pollution that can cause problems if the sum of the harmonic currents increases above certain limits. A harmonic current is one with a frequency at a multiple of the fundamental frequency, for instance a 250 Hz current on a 50 Hz network is the […]
UK Trade Association GAMBICA has created this VSD Energy Saving Calculator to demonstrate typical savings that can be obtained by using Variable Speed Drives to control pump and fan applications. The calculator is intended as a first-pass indication tool to help decide if a VSD will bring energy savings to your application and what type of […]
Faced with the challenge of doubling the throughput of a film coating line for a transfer printing operation, the Mitsubishi’s FR-A700-A1 inverter’s winder function proved to be an excellent control solution requiring only simple parameter settings. Jim O’Neill runs a bespoke machinery design-and-build company, Jim O’Neill Engineering, and was developing a coating line […]
Design and integration costs are often higher than the costs of the equipment hardware, so when developing the RX inverter drive, Omron UK integrated several functions for users to easily and quickly customise the inverter to the application. By combining ease of use with a series of standard on-board application-specific functions makes RX suitable for […]
A replacement drives system using ABB variable-speed drives has reduced machine down time to zero and helped a circlip manufacturer save £11,000 a year in energy costs. Cirteq Ltd, based in Keighley, West Yorkshire, is one of the UK’s leading manufacturers of circlips. The company buys raw, unshaped wire and runs it […]