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Voltage drop

Posted by H L Chan on October 21st, 2001 01:42 AM
In reply to Worst case voltage drop. by JT on January 24th, 1998 09:36 PM [Go to top of thread]

Please give your opinion to the following with thanks.

A 400V distribution system that provide lighting and power for a 5 km long tunnel. Each DB's load is about 10kW such as red phase:3.8kw, yellow phase:3.8kw and blue phase:3.9kw . The load mainly consists of 22 lighting fitting (36W each), one 60A TPN power socket and 1 SSO for each DB. There will be a series of distribution board to be installed every 100m apart. The tolerance is 6% from the source. What would be the best solution for such application?

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