substations in special buildings and underground · page 6 2017 ground water cost impact of ground...
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Substations in special
buildings and
underground
siemens.com/energy-management Unrestricted © Siemens AG 2017
1 Worldwide experience – selected projects
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~ 40 years experience
~ 25 projects completed
~ 250 bays in operation
~ 15 countries served
Siemens – global references of subterranean substations and
substations in special buildings
> 245 kV < 245 kV < 145 kV
2 Special requirements for substations in special buildings and underground
1. Soil + Ground Water
2. Fire Fighting
3. HVAC
4. Emissions
5. Access
6. Design Concept
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Soil and Ground Water
Ground water table
Soil pressure
Crucial for design and
cost
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Ground Water
Cost impact of ground water to
Single-story cellar building
Single-story underground substation
Two-story underground substation
Single-story cellar building
Single-story underground substation Two-story underground substation
air-intake
access
hall emergency
staircase
cable cellar
playground
air-intake
access
hall 110kV switchgear emergency
staircase
playground
air-intake
access
hall 110kV switchgear emergency
staircase
playground
hall
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Fire Protection Concept and Fire Fighting
Passive Fire Fighting
No flammable material
2 separated ventilation
systems for transformers
and building
Active Fire Fighting
Fire extinguish system
HSE Regulations
Emergency exit
No toxic materials (PVC)
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Heating Ventilation Air-Condition (HVAC)
Ventilation
Transformer separated from other
devices
More space needed
Humidity
Avoid humidity by minimizing air
exchange
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Emissions
Noise
Inconvenient sound of HVAC-
units and transformers
Electromagnetic
Too small vertical clearance to
public places or EDP
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Access
Heavy Equipment
If possible transformers on
ground floor
Aesthetic
Architectural design of visible
parts
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Design Concept
3 Possible Layouts
Underground S/S
Semi underground S/S
On–top building
Underground - hide as much as possible
Semi-underground - 2 levels On-top building - design necessary
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Do you have individual questions or want to schedule an
appointment for a personal consultation?
Siemens Energy Management
Customer Support Center:
Siemens AG
Freyeslebenstrasse 1
91058 Erlangen
Germany
Phone: +49 180 524 70 00
Fax: +49 180 524 24 71
E-mail:
siemens.com