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Author Topic: specifying booth electrical service Gordon McLeod Film God Posts: 9532 From: Toronto Ontario Canada Registered: Jun 99 posted 06-17-2010 11:45 PM                     I always spec tranformers that can handle non linear loads as one cannot maintain a balanced system as the load in a theatre is always varing depending on what machine is running and what load the soundsystem is drawing depending on dynamics  |  IP: Logged Mark Gulbrandsen Resident Trollmaster Posts: 16657 From: Music City Registered: Jun 99 posted 06-20-2010 08:59 AM                     Gord... In this case we installed 3 seperate Hammond 15kva 240 to 120 volt step down transformers. This allows for a wide dynamic range even though these three transformers feed only the D-Cinema system and are not loaded more than 50% of their rating. Going this route also allowed them to be hung on the wall and got us on screen on time and for less $$ than a single three phase stand alone transformer. Getting that was a week to 10 days out! The electrician hated installing them but was pleased with the results when he was done. 800cfm is correct for 3 to 4 kw lamp size in D-Cinema equipment. Mark  |  IP: Logged

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