Product category:
Gauges, Indicators and Instruments
News Release from: Tinsley | Subject: 5930 survey system
Edited by the Engineeringtalk Editorial
Team on 15 July 2003
Survey system spots buried cables
A range of equipment to detect buried cables, on land or offshore, will help and improve installation and maintenance of cables at new and existing wind turbine power generating projects.
A range of equipment to detect buried cables, on land or offshore, will help and improve installation and maintenance of cables at new and existing wind turbine power generating projects Wind energy is recognised worldwide as a proven technology to meet increasing electricity demands in a sustainable and clean way; the UK alone is thought to offer over 33% of the total European potential offshore wind resource
This article was originally published on Engineeringtalk on 1 May 2001 at 8.00am (UK)
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Tinsley's 5930 survey system is particularly useful for detecting power and control cables from offshore wind farms.
As many cable faults occur in shallow water it is essential to be able to survey these quickly and accurately and the equipment can be used in conjunction with a small survey class ROV.
Checking burial depth at sea is important because of cable damage caused by ships' anchors and movement by seabed erosion.
Offshore, signals from a toned cable are detected by a compact sensor array attached to the front of the ROV and this data is transmitted to the surface through an umbilical where it is processed and displayed in both graphic and numeric form.
The display is portable and can conveniently be installed next to the ROV control module.
A similar sensor can be used on land-based installations.
The system has a diagnostic function that uses both oscilloscope and spectrum analyser, enabling the operator to be fully aware of the quality of the signal being received and the presence of any other electromagnetic fields or interference that may be within the frequency range of the instrument.
The true frequency of the tone being received is monitored and can be displayed at any time, eliminating the problems associated with the frequency of the applied tone drifting with time.
The unit can be used with any tone generator designed for electroding of cables and, if required, the company can supply its 5915 electroding generator for this purpose.
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