ASHLEY EDISON INTERNATIONAL LIMITED

CASE STUDY FOR HUMBER BRIDGE U.K.:

Spanning 2.22km long, the Humber Bridge in Yorkshire, England, is the 7th-largest suspension bridge in the world.

In efforts to prolong an achievable design life of the suspension cables, engineers of the Humber Bridge installed state of the art dehumidification systems.

To do that, they’ll need additional electrical power, which involves the running of long supply cables – from both sides of the bridge.

THE PROBLEM:
SEVERE VOLTAGE FLUCTUATIONS FROM SEISMIC SHOCK
For optimal performance of the dehumidifiers, it was absolutely imperative to ensure stability and quality of the incoming power supply at 415V.

THE CHALLENGES FACED:

- Inherent voltage drop from long cable runs.
- Incoming voltage values could possibly drop to as low as 356V.
- Heavy voltage fluctuations caused by constant load change.
- Load change was due to continuous vehicular movement on the road decks.

Find out the full details in the link.