Nexans Power Accessories New Termination Solutions

Onshore and Offshore MV Termination Solutions

Nexans Power Accessories are proud to launch their range of termination solutions for use on onshore and offshore wind turbines. In addition to our range of inner cone and outer cone screened separable connectors for voltages up to 52kV, we have developed a range of junctions c/w mounting frames and terminations cabinets that utilise pre-terminated leads manufactured in-house by Nexans Power Accessories.

 
Offshore Cabinets/Junctions
Nexans Power Accessories have studied the installation of subsea array cables in the offshore towers and have developed, in our opinion, a system that gives the developer and installer certain advantages over other connection methods. By employing pre-terminated leads that utilise less expensive flexible cables, a developer may save money and an installer can save time on the preparation and testing of the link between the transformer to switchgear and/or switchgear to the array cable. By using a termination point near to the hang-off rather than taking the array cable directly to the equipment, an installer may also save time on the preparation of the array cable and spend less time in the tower dealing with the inconvenience of stripping longer lengths of arrays. This results in less reliance on the weather giving a cost saving to the developer due to the implications of the Waiting on Weather charges as more work can be done onshore preparing and testing the equipment. By saving time on the installation offshore, this would in our opinion, give an earlier completion date and thereby earning the developer revenue sooner.
 
NPA Frame for use with Nexans range of Separable Junctions  
Nexans Power Accessories offer 2 and 4 way outer cone junctions. The screened insulated junctions provide a termination point near to the hang-off and with the use of pre-terminated leads using outer screened separable connectors it can become a ‘plug & play’ system. 
NPA Termination Cabinet for use in Offshore Turbines
Offshore cabinets utilise a double bushing/flange arrangement and along with the use of outer cone separable connectors offers a fully screened termination. The IP rated cabinet can be used as a disconnecting point for internal to array cables and can also be utilised as a test point in either direction. Roxtec IP67 cable and pipe sealing solutions are provided as these can cover a wide range of cable diameters. We can provide cabinets with the facility to piggyback up to 4 array cables and have a further facility for jumper cables to the equipment within the tower. 
NPA Onshore Termination Cabinet
The onshore cabinet also utilises the double bushing/flange arrangement and can be used as a disconnect point for internal to external cables and can be utilised as a test point in either direction. Split gland plates can be provided for 3 core to 3 core cables, 3 core to single core cables and also single core to single core cables.
 
Outer Cone Separable Connectors
Nexans manufacture a range of screened separable connectors and they have been used in over 100 windfarms worldwide. The range includes truncated and piggyback connectors with a wide variety of associated accessories including surge arrestors, test rods and dead end plugs. Although the primary interface on European windfarm projects is interface C, we can also provide connectors for interfaces A through to E. We are also currently developing an interface F series of bushings and connectors that would provide a solution up to 52kV.
 
Cold Applied Termination
Our range of interference fit cold applied terminations for up to 42kV have been used on a number of onshore and offshore projects. These are mainly used for connection from the nacelle to the switchgear and can be supplied as part of the pre-terminated range of cables.
 
Coldshrinkable Joints 
Our range of interference fit cold applied terminations for up to 42kV have been used on a number of onshore and offshore projects. These are mainly used for connection from the nacelle to the switchgear and can be supplied as part of the pre-terminated range of cables.
 
 
Training
We also offer training for medium voltage jointers to install Nexans separable connectors, both inner and outer cone and push on terminations. Successful completion results in the award of a manufacturers certificate. Developers can also take advantage of our inspection service whereby Nexans personnel carry out offshore inspections on completed Nexans terminations.
 
We are also able to offer a 5 year extended warranty provided that Nexans Power Accessories personnel install our equipment offshore. We consider this to be unique for medium voltage accessory manufacturers and believe that it offers developers a high level of confidence in the operation of the terminations.
 
Pre-Terminated Leads
Nexans Power Accessories are proud to launch their range of termination solutions for use on onshore and offshore wind turbines.
We also supply pre-terminated leads for other applications and can now offer this service to help reduce time spent offshore preparing and testing cables.
These can be installed on the equipment in a transition piece onshore alleviating the reliance on good weather when supplying jointing teams to the offshore tower. The leads are manufactured using a highly flexible cable and can be provided with combinations of outer cone and inner cone screened separable connectors, heatshrink and coldshrink terminations plus our cold applied interference fit terminations. Various lengths have been manufactured and can be provided for transformer to switchgear links and for switchgear to array cable junctions/cabinets.   

Your Contact

NPA Sales Sales Department
Phone 01977 669966
sales.npa@nexans.com