Barrel Heaters - Hasmak.com.tr

Reference DataFormulas, Conversionsand Engineering ConstantsTypical 3-Phase Wiring Diagrams and Equations for Resistive <strong>Heaters</strong>DefinitionsFor Both Wye and DeltaWye and Delta Equivalents(Balanced Loads)W DELTA = 3 W WYEV P = Phase VoltageW ODELTA = 2 ⁄3 W DELTAV L = Line VoltageW OWYE = 1 ⁄2 W WYEI P = Phase CurrentI L = Line CurrentR = R 1 = R 2 = R 3 == Resistance of each branchW = Wattage3-Phase Wye (Balanced Load)3-Phase Open Wye (No Neutral)R 1R 2I PV PV LR 1R 2I POV POV LR 3I LI LOEquations For Wye OnlyI P = I LV P = V L/1.73W WYE = V L2 /R = 3(V P2 )/RW WYE = 1.73 V LI LEquations For Open Wye Only(No Neutral)I PO = I LOV PO = V L/2W 0WYE = 1 /2 (V L2 /R)W 0WYE = 2 (V PO2 /R)3-Phase Delta (Balanced Load)3-Phase Open DeltaR 1R 3I LI LI P01V PV LR 1V PR 3I L03W DELTA = 1.73 V L I L W 0DELTA = 2 (V 2 L /R)R 2I L02I L01I PV LI P03Equations For Delta OnlyI P = I L /1.73V P = V LV P = V LI PO1 = I PO3 = I LO2W DELTA = 3(V 2 L )/RI LO3 = 1.73 I PO1Equations For Open Delta Only396