Customers and potential clients from the UK, Germany, Belgium and the Netherlands were invited to view the demonstrations spread over four days.
CWind held the event at the National Wind Farm Training Centre in Barrow-in-Furness, Cumbria. The facility is the UK's only onshore training tower with a real transition piece, according to CWind.
Attendees to the event were able to climb the tower and observe the engineers during the pull-in of the cable.
It also allowed them to view the part of the foundations that would be under water and watch the cable be pulled through the transition piece's aperture.