来自步翠兰的问题
isthereanybodyknowstheformulaofPowerFactor?urgent..tqvmuch
isthereanybodyknowstheformulaofPowerFactor?
urgent..tqvmuch
1回答
2020-09-2217:27
isthereanybodyknowstheformulaofPowerFactor?urgent..tqvmuch
isthereanybodyknowstheformulaofPowerFactor?
urgent..tqvmuch
PF=cosθ=(UdotI)/|UI|=cos[arg(ū/ī)]where'dot'meansdotproductoftwovectors,andūandīaretheequivalentcomplexvalueofvoltageandcurrent,respectively,andθistheanglebetweenth...