Joined: 19 March 2008
I'm trying to setup an examination paper with a question related to power consumption by a typical Tesco's Extra, a Large Sainsbury's or even an Asda. What kind of power consumption does a typical large supermarket pull at maximum demand?
I'm guessing 3MVA @ 0.80pf? thus 2.4MW Active and 1.8 Reactive
Then what i am trying to do is resolve a typical value for the aggregate Inductance/Capacitance/Resistance x 3 (as there are 3 lines), balanced.
3MVA/3 = 1MVA per line.
I am guessing to find my impedance Z per line (230^2)/1MVA = 52.9milliOhms.?