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11kV Switchgear Cable Terminations, Jointing & Spiking In High Voltage Substations

Published 04 Dec 2017

Joints Terminations Connectors LV MV HV

Jointing, Terminating & Installation of 11kV Substation Cables

Guest Post from Mick Beeby - Technical & Operations Manager at UK Power Solutions Ltd
Uploaded by Chris Dodds - Thorne & Derrick Sales & Marketing Manager

“I spent a couple of days on site this week with one of our team of Operations Engineers, connecting 4 new ESP adopted 11kV high voltage substations on Phase 2B of the Ballymore Royal Wharf Development in London.

UKPS have provided the electrical infrastructure for Phase 1, 2A and now 2B to date.

This includes 1 x UKPN 11kV boundary substation with 2 RMUs, 1 x SSE 11kV boundary substation with 2 RMUs, 11 x ESP 11kV permanent distribution substations and 1 x ESP 11kV TBS installed and disconnected again, 1 x UKPN 11kV metered TBS to private high voltage transformer.

There are more ESP 11kV distribution substations to install in Q1 2018. This now takes us to 10 of a final 12 total on this ESP 11kV ring.

An IEC was received from SSE for the DNO/iDNO boundary end of the ESP 11kV circuit, which was made Dead, Isolated and Earthed before the 11kV cables were identified and cables spiked under a Sanction-for-Test. A Permit-to-Work was then issued for the 11kV cable jointing, followed by pressure testing under another Sanction-for-Test and final energisation and 11kV phase checks to bring 4 new 11kV high voltagew substations onto the system.”

High Voltage Substation 11kV 33kV

1 of 4 new ESP 11kV high voltage substations connected on this visit, taking the total on this ESP 11kV ring to 4 substations, and 11 on the Ballymore Royal Wharf development so far.

HV MV Joints Terminations

2 x 3c 11kV polymeric SSE specification straight cable joints of TE Connectivity MXSU series, to loop 4 high voltage substations into the existing ring of 4, making 8 total.

Switchgear Cable Terminations Cable Joints

5 Way Transformer Mounted Cabinet post energisation testing. 5 outgoing LV circuits to the multi-occupancy buildings on Phase 2b of the Royal Wharf development.

Cable Terminations Into MV HV Switchgear

1 of the 4 new ESP adopted substation internally, comprising Schneider RN2C SF6 Ring Main Unit, Schneider 11000V/400V transformer and Schneider 5 Way Transformer Mounted Fuse Cabinet with incoming high voltage 3c 11kV XLPE polymeric cables.

About Mick Beeby

With over 25 years of experience in the UK Electricity Distribution sector, coming from an apprentice electrician, through Electrical Fitter, Project Manager and Senior Authorised Person roles. Familiar with many types of low voltage, medium voltage and high voltage switchgear, transformers and cables. In depth familiarity of Schneider Genie Evo 11kV switchgear, switchgear cable terminations including complete stripping, re-build and testing.

In depth theoretical and practical knowledge of MV-HV testing and commissioning, cable fault location and cable repair, including test equipment application and limitation.

Experience of all aspects of medium voltage distribution substation testing and commissioning; cable sheath testing, cable/switchgear IR testing, over voltage testing (DC/AC/VLF), primary and secondary injection testing, transformer testing, CT mag curves, CT polarity, soil resistivity and earth electrode systems testing.

Schneider

Schneider

Schneider Genie Evo Air Insulated

MV HV Switchgear 3.3kV 13.8kV

The Schneider GenieEvo concept is an evolution from the extremely successful Genie philosophy which offers increased levels of flexibility and greater choice for the distribution of medium/high voltage power – this is achieved by allowing separate selection of the MV-HV switchgear and protection and control modules. GenieEvo extends the concept of Genie by offering a gas free circuit breaker to the MV-HV product portfolio.

  • Schneider GenieEvo comprises
    Cast resin encapsulated MV medium voltage system
    Demountable vacuum circuit breaker
    Controlled air, resin encapsulated series disconnector
    Flexible pre-engineered protection and control modules

 1. Vacuum circuit breaker 2. Controlled air disconnector 3. Top entry pilot box 4. Internal arc protection 5. CT chamber 6. Cast resin insulated busbar system with optional earth shielding 7. Multi functional protection and control unit 8. Unit fascia with active operating mimic display 9. Front access cable and vacuum test facility 10. Rear entry MV medium voltage cable box 11. Internal arc vented via dedicated cable trunking for operator safety 12. Mechanical operations counter 13. Circuit potential indicator as standard 14. VT chamber

Switchgear Terminations 11kV

Medium & High Voltage Switchgear

Thorne & Derrick International

T&D distribute the most extensive range of MV & HV Jointing & Terminating, Installation & Cable Pulling Equipment – we service UK and international clients working on underground cables, overhead lines, substations and electrical construction at LV, 11kV, 33kV and EHV transmission and distribution voltages.

  • Distributors for: 3M, ABB, Alroc, Band-It, Catu, Cembre, Centriforce, CMP, Elastimold, Ellis Patents, Emtelle, Furse, Lucy Zodion, Nexans Euromold, Pfisterer, Polypipe, Prysmian, Roxtec.
Switchgear Cable Terminations

T&D distribute MV-HV Switchgear Cable Terminations to suit 11kV/33kV connections into air, oil and gas insulated switchgear or transformers including heat shrink, cold shrink and separable connectors for both inner cone and outer cone bushings from leading manufacturers including Nexans Euromold, 3M and Pfisterer.

♦ See more: Heat Shrink Cable Terminations 11kV 33kV | Cold Shrink Cable Terminations 11kV 33KV

MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)

MV HV – Medium & High Voltage Cable Joints, Terminations & Connectors (11kV 33kV EHV)

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T&D’s Power Blog covers: LV MV HV & EHV Transmission & Distribution, Substations, Switchgear, Cable Jointing & Termination, Cable Fault & Repair, Underground Cables.

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Pfisterer Nexans Euromold Elastimold 3M Cold Shrink MV HV

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