New 110 kV Incoming Supply System for Power
Import into the Albbruck Paper Mill (MD Papier)
STEAG Energy Services provided assistance for the new construction of the 110 kV incoming
supply system for power import into the paper mill at Albbruck and switchover to the new system.
The new installations were commissioned by MD Papier in order to improve power import
flexibility.
Overall view of the paper mill site
The Project
STEAG-Services
MD Papier operates a paper mill at Albbruck,
including three paper machines, grinding plant
and a hard-coal-fired power plant for steam
and electricity production. Previously, the
factory was supplied from the 20 kV grid.
The existing 20 kV power import facilities
restricted the options for import of electricity
from external suppliers. In order to enhance
flexibility for power import, a new highcapacity, redundant 110 kV switchgear was
designed and implemented.
STEAG provided technical and organizational
assistance to the Client throughout the 110 kV
switchyard project. This included the following
services:
Along with this measure, the meshed site
network was converted into a star-shaped
distribution structure and expanded.
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Preparation of concept for electrical site
network
Stationary and dynamic system
calculations
Preparation of tender documents; 10 lots
Bid evaluation and contract award
recommendation
Design review: basic / detail-engineering
Coordination of interfaces
Quality assurance in manufacturer‘s works
and at the plant site
Organizational and technical support
during switchover to new system
STEAG Energy Services GmbH · Rüttenscheider Str. 1-3 · 45128 Essen · Germany · Fon +49 201/801-0 · Fax +49 201/801-6388
Internet: http://www.steag-energyservices.com · Email: info-energyservices@steag.com
Facts and figures
Client
Construction time
Measures
MD Papier
12 months
2x 110 kV switch bays, 110 kV cables, 80 MVA grid transformers
1x 20 kV double busbar switchyard, 3x 10/20 distribution transformers
6 kV switching station, medium-voltage cabling
Chronicle
April 2005
May / June 2005
November 2005
January 2006
Jan.-March 2006
March 2006
Contract award
Completion of technical specifications
Field erection of 20 and 110 kV switchgears, 110 kV cabling
Field erection of grid transformers
Commissioning
Switchover of the paper mill to the new system
Key data
Grid connection
Transformer rating
Grid voltage level
2x 80 MVA
110 kV
Central 20 kV switchyard
Short-circuit current Ik”
Double-busbar system
31.5 A
SF6-insulated, 15 bays
Distribution transformers
Transformer rating
Transformation ration
Type
2x 20 MVA; 1x 10 MVA
20 kV / 6 kV
Resin-encapsulated transformers
STEAG Energy Services GmbH · Rüttenscheider Str. 1-3 · 45128 Essen · Germany · Fon +49 201/801-0 · Fax +49 201/801-6388
Internet: http://www.steag-energyservices.com · Email: info-energyservices@steag.com