Txheeb xyuas cov kab hluav taws xob thib ob ntawm lub tshuab hluav taws xob siab hluav taws xob ntsuas lub thawv
Yog li yooj yim, qhia koj los xyuas cov kab txuas txuas ntxiv ntawm lub siab-voltage fais fab metering lub thawv.
◆ Thawj kauj ruam: xyuas lub voj voog voltage thiab lub voj tam sim no
Lub thawv high-voltage fais fab metering yog siv rau lub hwj chim load metering nyob rau hauv peb-theem nruab nrab taw tes ungrounded system, siv peb-theem peb-xaim txoj kev, raws li qhia nyob rau hauv daim duab hauv qab no:
Ua ntej txheeb xyuas cov xaim hluav taws xob, nws yuav tsum tau xyuas seb qhov hluav taws xob hluav taws xob puas, qhov tam sim no raug txiav thiab tsis muaj kev thauj khoom. Txoj hauv kev kom paub meej yog hloov lub multimeter mus rau qhov voltage ntau. Ua raws li 5 thiab 8 qhov ntawm lub ntsuas hluav taws xob hluav taws xob, txawm tias qhov hluav taws xob yog 100V, yog tias muaj li 57V lossis 173V, lub tshuab hloov pauv yuav muaj qhov rov qab polarity lossis kev sib txuas; Tom qab ntawd hloov cov theem voltammeter mus rau qhov tam sim no ntau thiab clamp tam sim no Clamp nws ntawm inlet hlau ntawm watt-teev meter 1 thiab 7 raws li, qhov tam sim no yuav tsum tau raws li 0.1A los yog ntau tshaj, thiab paub meej tias qhov tam sim no ntawm inlet hlau ntawm lub watt-teev meter 1,7 yog sib npaug.
◆ Kauj Ruam 2: Nrhiav theem b:
Hauv qhov txuas no:
① Uab= Ucb= Uac=100V
② Ua, Uc voltage to ground=100V
③ Ub voltage rau hauv av=0V
Yog li, koj tuaj yeem siv qhov voltage ntau ntawm [multimeter] kom paub meej tias theem b; txoj hauv kev kom paub meej yog hloov lub multimeter mus rau qhov voltage ntau. Lub (dub cwj mem) ntawm lub multimeter yog opposite rau hauv av, thiab (liab cwj mem) sib raug rau 2, 5, thiab 8 ntawm lub zog hluav taws xob ntsuas. Yog tias qhov voltage ntawm theem ntawd yog" 0", nws yog theem b.
◆ Kauj Ruam 3: Txiav txim siab qhov voltage theem ua ntu zus
Raws li txhua tus paub, muaj 6 hom theem sib lawv liag ntawm peb-theem peb-xaim hluav taws xob ntsuas hluav taws xob:
① Cov theem ib txwm: abc, bca, cab
② Rov qab theem ib ntus: cba, bca, acb
Yog li ntawd, koj tuaj yeem siv qhov ua haujlwm ntawm [Phase Sequence Table] kom paub meej tias cov theem sib lawv liag ntawm lub ntsuas hluav taws xob txuas nrog qhov zoo lossis qhov tsis zoo. Txoj kev lees paub yog los txuas cov xim daj, ntsuab thiab liab ntawm cov kab lus theem mus rau 2, 5, thiab 8 qhov ntawm lub ntsuas hluav taws xob raws li, thiab saib Turntable lossis suab. Txheeb xyuas qhov tseeb theem ua ntu zus raws li qhov tshwm sim. Piv txwv li: qhov ntsuas hluav taws xob ntsuas hluav taws xob ntsuas hluav taws xob 5 qhov rau hauv av yog 0, thiab lub ntsuas hluav taws xob theem ntsuas ntsuas theem theem ntawm lub ntsuas hluav taws xob hluav taws xob los ua lub ntsuas hluav taws xob rov qab, tom qab ntawd nws tuaj yeem txiav txim siab tias qhov tseeb qhov sib txuas. ntawm lub ntsuas hluav taws xob hluav taws xob yog 2, 5, 8 sib raug rau c, b, a;
Lub kaum sab xis:
Lub kaum sab xis ntawm peb-theem peb-theem hluav taws xob ntsuas hluav taws xob yog ntsuas raws li lub kaum sab xis ntawm lub kauj tam sim no thiab qhov hluav taws xob hluav taws xob ntawm cov khoom ywj pheej, uas yog, thawj lub ntsiab lus ntsuas lub kaum sab xis ntawm U12^I1 thiab qhov thib ob. element ntsuas U32^I2 Lub kaum sab xis ntawm.
Yog li ntawd, koj tuaj yeem siv qhov ua haujlwm ntawm [Phase Voltammeter] kom paub meej lub kaum sab xis ntawm thawj lub caij thiab lub caij thib ob. Txoj kev lees paub yog hloov cov theem voltammeter mus rau theem ntau, thiab cov terminals liab thiab dub ntawm qhov ntsuas hluav taws xob ntsuas hluav taws xob U1 txuas nrog lub zog hluav taws xob. Rau qhov 2 thiab 5 ntawm lub 'meter', clamp tam sim no clamp I2 mus rau 1 lub qhov thaiv ntawm lub zog hluav taws xob ntsuas, thiab ntsuas cov ntaub ntawv thiab sau nws. Tom qab ntawd txuas cov liab thiab dub ntawm qhov ntsuas hluav taws xob ntsuas hluav taws xob U1 mus rau 8 thiab 5 qhov ntawm lub ntsuas hluav taws xob hluav taws xob feem, thiab clamp tam sim no clamp I2 mus rau 7-qhov txuas ntawm lub ntsuas hluav taws xob raws li, thiab cov ntaub ntawv ntsuas thiab kaw tseg.
◆ Kauj Ruam 4: Ua raws li vector tsom xam raws li qhov xwm txheej ntawm lub nra
Piv txwv li, ib qho load yog perceptual;
Thawj kauj ruam yog ntsuas: Uab=Ucb=Uac=100V; Ia=Ic=1A
Cov kauj ruam thib ob yog ntsuas: qhov voltage ntawm 8 qhov ntawm lub zog hluav taws xob ntsuas rau hauv av yog 0V
Ntsuas nyob rau hauv lub thib peb kauj ruam: qhov voltage ntawm qhov 2, 5, thiab 8 ntawm lub zog hluav taws xob ntsuas yog nyob rau hauv rov qab theem ib theem zuj zus.
Qib plaub yog ntsuas: U12^I1=2300, U32^I2=3100
Txoj kev tsom xam
① Kos daim duab sib raug zoo ntawm U1, U2, U3 thiab Ua, Ub, Uc, (U1, U2, U3 sib raug rau qhov voltage ntawm 2, 5, thiab 8 qhov)
Raws li kev txheeb xyuas ntawm cov kauj ruam thib ob thiab thib peb;
U1, U2, U3
Ua, Uc, Ub
② Kos daim duab siv vector raws li theem ua ntu zus
