Girmanar Alternator

Ma'ana na alternator

Alternator ita ce wasu alternator wanda ya yi amfani da sauyin shaida da armature mai yawan tsaye don kawo zafi masu aiki zuwa zafi masu karamin aiki.

Abubuwan da ke cikin alternator

Alternator tana da abubuwa biyu daban-daban: rotor (mai giga) da stator (mai yawan giga).

Kimiyyar alternator

Kimiyyar ta tana da pole mai gida a rotor da armature conductor a stator, wanda ya sami voltage mai sauƙi uku.

Na'urar rotor

Na'urar pole mai salient (don yanayin tsari)

Kalmar "salient" na nufin yadda ake fahimta ko bayyana. Rotor da suka da pole mai salient suna amfani a wasu machines masu yanayin tsari da girman tsari da inganci mai yawa. A wannan lokacin, an yi poles masu hadin kwallon jerin steel da suka kammala saboda riveting kuma an koyar da rotor baki daya da rukunin.

Salient features na'urar field structure sun hada

• Su da girman tsari mai yawa daɗi tsari mai yawan tsaye.

• Pole shoe tana kofin kusan 2/3 na pole distance na rd.

• Poles suka kammala saboda hanyar lamination don iya rage eddy losses.

• Motors da suka da pole mai salient suna amfani a yanayin tsari mai yawa daɗi 100 zuwa 400 rpm, kuma ana amfani su a power stations da suke da water turbines ko diesel engines.

Na'urar rotor cylindrical (don yanayin tsari mai yawa)

Rotor cylindrical suna amfani a yanayin tsari mai yawa a steam turbine-driven alternators kamar turbine generators. Wasu waɗannan machines suna da ratings daban-daban, daga 10 MVA zuwa 1500 MVA. Rotor cylindrical tana da tsari mai yawan tsaye da inganci, wanda ya ba ta daidai cutting flux a duk hanyoyi. Rotor tana da tsari mai cylindical da grooves a ƙarin edge don excitation coil.

Alternators cylindrical rotor suna da design 2-pole type da yanayin tsari mai yawa

Ko 4 pole type, yanayin tsari tana da

Idan f ita ce frequency 50 Hz.

Rotor mai pole mai salient da rotor cylindrical

Rotor mai pole mai salient tana da girman tsari mai yawa da inganci mai yawan tsaye don yanayin tsari mai yawa, amma rotor cylindrical tana da tsari mai cylindical da yawan gyara don yanayin tsari mai yawa.