Karakarar Sana'a da Karakar Zafiya
Principles of Synchronous Reactance and Impedance
Synchronous reactance (Xₛ) wata sashe mai gaba da yadda manyan kisa na armature ta haɗa suka shafi tsarin kisa na armature da ke fuskantar air gap saboda hanyar armature. Duk da cewa, synchronous impedance (Zₛ) wata sashe mai gaba da yadda manyan kisa na armature ta haɗa suka shafi tsarin kisa na armature resistance, leakage reactance, da kuma fuskantar air gap saboda hanyar armature.
Aiki a kan tasirin kisa na armature ita ce: excitation voltage (Eₑₓₑc), wanda zai shafi daga field excitation ba tare da hanyar armature, da kuma armature reaction voltage (Eₐₚ), wanda ya nuna yadda hanyar armature ta haɗa suka shafi. Wadannan kisan ita ce ta kunshi don in tabbatar da yadda hanyar armature ta haɗa suka shafi tasirin kisa na armature, a cikin wannan abu:Ea = Eexc + EAR.
Tasirin kisa na armature saboda fuskantar flux daga current na armature ita ce inda inductive reactance effect. Saboda haka, armature reaction voltage (Eₐₚ) wata inductive reactance voltage, a cikin wannan abu:
Inductive reactance (Xₐₚ) wata sashe mai gaba da yadda manyan kisa na armature ta haɗa suka shafi. Saboda haka, armature reaction voltage zai iya bayyana a matsayin inductor wanda ya kunshi da internally generated voltage.
Wajen hanyar armature, winding na stator na bi self-inductance da kuma resistance. Za a yi:
Terminal voltage zai bayyana a cikin wannan abu:
Duk da cewa:
Duka hanyar armature da leakage flux suna haɗa suka shafi a cikin machine a matsayin inductive reactances. Wadannan suna kunshi don in tabbatar da equivalent reactance wanda ake kira synchronous reactance XS.
Impedance ZS a Equation (7) wata synchronous impedance, inda XS yana nuna synchronous reactance.
