Long Underground EHV Cables

Apr 2013

Electricity Distribution

Reference:

Status: Live

Start Date: Apr 2013

End Date: Unknown

Funding Licencee(s): Northern Powergrid

Contact: Chris Goodhand, Innovation Manager (01977 605641)

Funding Mechanism Innovation Funding Incentive

Research Area: None

Core Technology(ies): High Voltage Technology

Estimated Expenditure: £17,632.00

Introduction: To identify the potential issues with long distance distribution using underground cables.

Objectives: To assess the potential issues with long distance distribution using underground cables (and identify solutions), including but not limited to:

Earthing & bonding
Electrical protection and control
Switching
Pre-commissioning tests
Fault location.

It is anticipated that the study will address issues including but not limited to:

Charging currents as they affect testing, protection and voltage control
The merits of distance, unit, and other protection schemes
Communications over 40-50 km of cable
Intermediate switching points
Shunt and series compensation
DC links.