Case Studies1 1

AREVA first in Scandinavia Konti Skan Project

Case Studies2 2

AREVA First in Scandinavia

Konti-Skan 1 HVDC Project

Case Studies3 3

KontiSkan 1 Refurbishment and Upgrade

Svenska Kraftnät - owns and operates Sweden’s transmission network with responsibility for the national electricity grid

ELTRA - owns and operates the 400kV transmission network for Jutland and Funen in western Denmark

Customers

Case Studies4 4

Upgrade / Refurbishment

Equipment to be re-used wherever possible

No continuous overload capacity above 360 MW nominal rating

ScopeSweden - Turnkey addition to existing s/s

Denmark - Excluding buildings and AC switchyard

BipolePole 1

250 MW (250 kV @ 1000 A)

Mercury Arc (Asea)

Completed September 1965

Pole 2300 MW (285 kV @ 1050 A)

Thyristor (Asea)

Completed November 1988

Multiple Cable / OHL Sections

Case Studies5 5

Single Line Diagram

DenmarkVester Hassing

Substation

SwedenLindome Substation

Route Length = 150 km

Cable23 km

OHL34 km

310 mm 2310 mm 2

310 mm 2

Denmark Mainland

LaesoeIsland

OHL9 km

Cable64 km1200 mm 2

SwedenMainland

OHL17 km

Cable23 km

500 mm 2310 mm 2

500 mm 2

Cable64 km

1200 mm2

ElectrodeLine

Com

mon

Tow

ers

Com

mon

Tow

ers

Com

mon

Tow

ers

Pole 2285 kV

@ 1050 A300 MW

ElectrodeLine

130kV50Hz

400kV50Hz

400 kV50 Hz

OHL34 km

OHL9 km

OHL17 km

Pole 2285 kV

@ 1050 A300 MW

New Arrangement

MercuryArc Valves

150 kV50 Hz

Pole 1285 kV

@1000 A

250 MW

SwedenStenkullen Substation,

Gothenburg

OHL31 km

Pole 1285 kV

@ 1000 A250 MW

MercuryArcValves

130kV50Hz

Route Length = 150 km

285 kV

380 MW@ 1340 A

NewPole 1

285 kV

380 MW@ 1340 A

NewPole 1

Case Studies6 6

Upgrade / Refurbishment

Equipment to be re-used wherever possible

No continuous overload capacity above 380 MW nominal rating

ScopeSweden - Turnkey addition to existing s/s

Denmark - Excluding buildings and AC switchyard

BipolePole 1

380 MW (285 kV @ 1340 A)

Thyristor (AREVA)

Completed July 2006

Pole 2300 MW (285 kV @ 1050 A)

Thyristor (Asea)

Completed November 1988

Multiple Cable / OHL Sections

New converter rating to match DC conductor rating

Case Studies7 7

H400: Latest Technology HVDC ValvesKontiSkan HVDC Scheme

Case Studies8 8

HVDC Equipment

Control SystemValve Base Electronics equipment

Pole Control equipment

Interface with existing Pole 2 Control

New Pole and Bipole Control functionsPower Control

Frequency Control

Reactive Power / AC Voltage Control

Power Modulation

Runback

Case Studies9 9

Transformer

Case Studies10 10

Lindome

Case Studies11 11

Lindome

Case Studies12 12

Lindome