Display MoreThank you THHuxleynew, I give you a gift.
Three lamps (nominal power 100W each) and the line-to-line voltage is 220Vac :
when the yellow clamp (clamp n.2) connected as due the instrument measured power is about 0.27kW
when the yellow clamp (clamp n.2) reversed the instrument measured power is only 0.09kW.
He he he ! I am glad someone else did the triple light bulb 3 phase set up. Great for testing delta-wye hypotheses.
(Although using more linear (not tungsten) resistors will be better for some things...)