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26 May, 2024

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Cabling best practice Part 4: Length

04 May, 2021

Long cables between a motor and a VSD are not generally a good idea, but are sometimes unavoidable. ABB's Martin Richardson explains the factors to consider.

Cabling best practice Part 3: Routing

05 April, 2021

Have you ever experienced instruments giving readings from variable-speed drives that are clearly inaccurate or sporadic? The problem may lie, not with your drives, but with the way their cabling is installed, as ABB's Martin Richardson explains.

Cabling best practice Part 2: Grounding

08 March, 2021

Improving installation techniques for variable speed drives can dramatically reduce the likelihood of equipment failure and increase system reliability. Here, ABB's Martin Richardson considers the importance of earthing.

Choosing the best cables for VSDs

16 February, 2021

VSD-controlled pump installations sometimes experience spurious tripping or erratic process measurements. As ABB’s Martin Richardson reveals, such problems are increasingly being attributed to incorrect choice or installation of cabling. 

Energy regulations for motors and VSDs are set to change in July

06 January, 2021

From July 2021, a new Ecodesign regulation will come into force for low-voltage induction electric motors rated up to 1kV AC and, for the first time, for variable-speed drives. ABB UK sales manager Rich Gee explains the new requirements. 

How will new harmonic guidelines affect VSDs?

26 November, 2020

In his second column on the new G5/5 harmonic recommendation, ABB’s Martin Richardson reports that while there are many changes that may result in different methods of assessment, there are no fundamental changes in the mitigation methods and technologies used to keep harmonics in check. 

A roadmap to net zero

16 October, 2020

The next few years will be make-or-break for how global leaders respond to climate change. But businesses have a big part to play and should capitalise on their energy-saving initiatives and investments, argues ABB’s UK managing director, David Hughes. 

Harmonising a classic

16 September, 2020

The UK electricity has issued a new edition of its G5 harmonics recommendations. ABB’s Martin Richardson outlines the main changes between G5/4-1 and G5/5. In a future column, he will examine the impact of the recommendations on variable-speed drive installations.

Nine tips for using VSDs with submersible pumps

11 August, 2020

Using a VSD to control submersible pump systems raises several important issues. ABB’s Martin Richardson examines them.

Making sense of the torque

23 June, 2020

Variable-speed drives (VSDs) are intelligent devices, acting like virtual sensors by continuously measuring and calculating parameters that can affect an application. ABB’s Martin Richardson suggests that, if used correctly, this could shift industry from a “fix it when it breaks” mentality to “fix it before it breaks”.

Cavitation needn’t cause aggravation

18 May, 2020

Cavitation is usually bad news for any pumping system and,  if left unchecked, it can wreak havoc with impellers and other components. However, modern VSDs offer an easy, low-cost method to detect and prevent it, as ABB’s Andrew Bould explains.

Using VSDs outdoors? Avoid IP ratings you don’t need

14 April, 2020

HVAC contractors and consultants sometimes specify IP ratings of IP65 or higher for variable-speed drives used outdoors, but a high IP rating is not the same as “weatherproof”, as ABB’s Carl Turbitt explains.

How to dimension a variable-speed drive

03 February, 2020

ABB’s Liam Blackshaw offers advice on how to dimension a variable-speed drive correctly to suit the application.

Energy saving: time to return to the basics?

03 January, 2020

ABB’s Steve Hughes discovers that the energy-saving benefits of variable-speed drives are still not widely understood.

Where is fieldbus heading for drives?

20 November, 2019

Fieldbuses give variable-speed drives the ability to control processes rapidly and accurately, while accessing data to determine how applications are performing. ABB’s Liam Blackshaw offers some insights into fieldbus developments for VSDs.

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