Angle-DC Project | Cold Shrink Terminations Connecting 33kV Power Cable In DC Inverter Room

Published 04 May 2021

Cold Shrink terminations

Connecting 33kV Power Cable In DC Inverter Room

  • Special thanks to Lee Bavington (Director) at Power Installations Ltd
    for allowing Thorne & Derrick to share the following images

Power Installations Ltd have the capability and Authorisation to cover the specification outlined by SP Energy Networks (SPEN) technical requirements for the Jointing & Termination of Medium Voltage Power Cables up to 33kV.

The following sequence of site photographs show the SPEN Angle DC project approaching completion with the installation of Cold Shrink terminations to the DC inverter room.

Below images show standard SPEN specification medium voltage cable termination utilising Cold Shrink technology invented by 3M Electrical over 50 years ago.

Contact Power Installations Ltd 
  • 07851179000 (Mobile)

lee.bavington@power-installations.co.uk


Project Details

Angle-DC is a smart and flexible method for reinforcing distribution networks. The project is creating a controllable bidirectional Direct Current (DC) link between two sections of our network, Isle of Anglesey and North Wales. Angle-DC is converting existing 33kV Alternating Current (AC) assets to DC. The DC link will enable improved power flow and voltage control. Converting AC assets to DC operation will enhance the thermal capability of the circuit in a timely manner. The Anglesey example, while complicated, is representative of many of the challenges all DNOs are facing in the transition to a low carbon economy. This pilot scheme will incorporate a novel technology as part of the toolbox of solutions for network reinforcement and renewable connections. The solution could be deployed to interconnect two distribution networks which would otherwise be operated split due to fault level and thermal limits. View the project Fact-Card here.

DC Inverter Room | 33kV Cable Terminations Using 3M Electrical Cold Shrink

DC Inverter Room

Cable Terminations 33kV

Cable Terminations 33kV

The Jointers from Power Installations Ltd had to sleeve the copper screen wires of the 33kV power cable below the line of the surge arrestors that the invertor cradles were mounted on due to the fault potential from the invertors as they were not earthed as part of the DC system.

New SPEN Angle DC Project

New SPEN Angle DC Project

Angle DC Operation AC to DC

Technical Resources

NIC Project Medium Voltage Direct Current Link Technical Specification | This Specification details SP Energy Networks (SPEN) requirements for a bidirectional Medium Voltage Direct Current (MVDC) Link for the ‘Angle-DC’ project, being carried out in conjunction with Ofgem’s Network Innovation Competition (NIC).

NIC Project Holistic Circuit Condition Monitoring Specification | This Specification details SP Energy Networks (SPEN) requirements for network monitoring equipment for the ‘Angle-DC’ project being carried out in conjunction with Ofgem’s Network Innovation Competition (NIC).


3M

Thorne & Derrick | 3M Electrical Distributors & Stockists Since 1985 | Medium Voltage Joints & Termination from stock up to 66kV

Thorne & Derrick provide competitive prices and fast delivery from stock for the complete range of 3M Scotchcast and Cold Shrink cable joints, terminations, resins and Scotch electrical tapes – we stock high voltage cable joints and terminations manufactured from 3M using Cold Shrink for 11kV 33kV and 66kV cables.

Watch Video & Read Blog about the benefits of Cold Shrink technology from 3M Electrical

Watch Video & Read Blog about the benefits of Cold Shrink technology from 3M Electrical


Thorne & Derrick International

LV, MV & HV Jointing, Earthing, Substation & Electrical Eqpt

Thorne & Derrick International are specialist distributors of LV, MV & HV Cable Installation, Jointing, Duct Sealing, Substation & Electrical Equipment – servicing UK and global businesses involved in cable installations, cable jointing, substation, overhead line and electrical construction at LV, 11kV, 33kV and EHV.

THORNE & DERRICK Product Categories: Duct Seals | Cable Cleats | Cable Glands | Electrical Safety | Arc Flash Protection | Cable Jointing Tools | Cable Pulling | Earthing | Feeder Pillars | Cable Joints LV | Joints & Terminations MV HV 

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Further Reading