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Useful Information

Useful Charts

Posted by Barry Simpson on

A list of charts we find useful   One piece single fixing Cable Cleats Armoured Cable Current Ratings Cable Gland Sizing Charts 1 Cable Gland Sizing Charts 2 Cable Gland Sizing Charts 3 Cable Joint Selection Chart 1 Cable Joint Selection Chart 2 Calculating the right fan CY Control Cable Current Ratings Guide to Bathroom Zones IP Protection Ratings SY PVC Control Cable Current Ratings Trirated Cable Current Ratings YY Control Cable Current Ratings.pdf      

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About Variable Speed Drives

Posted by Fergus Leen on

About Variable Speed Drives

  Adjustable speed drive (ASD) or variable-speed drive (VSD) describes equipment used to control the speed of machinery. Many industrial processes such as assembly lines must operate at different speeds for different products. Where process conditions demand adjustment of flow from a pump or fan, varying the speed of the drive may save energy compared with other techniques for flow control. Where speeds may be selected from several different pre-set ranges, usually the drive is said to be adjustable speed. If the output speed can be changed without steps over a range, the drive is usually referred to as variable...

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