Railway Tunnel
Electrical security of the supply to the containment air charge compressors
Context
Project Type :
Temporary Energy
Location :
Lucerne (Switzerland)
Problem
- Realisation of a tunnel for a railway line with an impact header tunneller and containment by compressed air
- Ensuring the security of the electricity supply to the air compressors
Solution
- Installation, commissioning and tests conducted by our engineers
- Commissioning 2 back-up generators of 1100 kVA / 400 V / 50 Hz: back-up automatic starting on ATS
- Connection of 3200 A automatic transfer switches
- Generator connection – ATS – compressors: LV cables H07RNF 240² terminated at each end – 400 m
- Commissioning additional tanks of 3000 litres (in accordance with ADR regulation)
- Dry-run operational testing
- Removal of the installation at the end of the site
- Duration: 18 months
