Parallel ua haujlwm ntawm cov hloov pauv hloov pauv cov windings thawj ntawm ob lossis ntau hloov pauv rau tib lub zog, cia lawv khiav lag luam ua ke. Cov teeb tsa no txhim kho kev ntseeg tau, hloov tau yooj yim, thiab thauj khoom {{1} Nrhiav tau muaj peev xwm nyob hauv cov khoom muaj hwj chim. Ntawm no yog cov lus piav qhia ntxaws:
1. Cov xwm txheej rau kev ua haujlwm sib txawv
Txhawm rau kom muaj kev ua haujlwm nyob ruaj khov ntawm cov hloov pauv, cov xwm txheej hauv qab no yuav tsum tau ntsib:
(1) Voltage piv sib txig sib luag:
Cov ntsuas voltage sib piv ntawm txhua transformers yuav tsum muaj sib npaug rau kev tiv thaiv kev ncig ua si thiab muaj kev poob ntau.
Feem ntau, lub voltage piv yeem tsis kam nyob hauv ± 0.5%.
(2) kev sib npaug luv luv - Circuit Court Impedance (txheeb ze qhov tseem ceeb):
Lub sijhawm luv - Circuit Circuit yuam ntawm txhua transformers yuav tsum zoo sib xws (feem ntau nyob rau 10% sib txawv).
Qhov tsis sib xws imedance ua rau uneven load sib qhia, nrog transformers muaj qis dua nqa cov kev thauj khoom ntau dua.
(3) tib theem kaum:
Cov theem kaum ntawm cov windations transformer yuav tsum zoo ib yam kom ntseeg tau tias theem raug.
Ib theem lub kaum kev sib dhos ua rau theem kev txav chaw thiab ua haujlwm kom sib luag ua tsis tau.
(4) pawg txuas ntxiv:
Cov hloov pauv yuav tsum muaj tib pawg sib txuas (piv txwv li, yyn0) kom ntseeg tau cov theem ua kom nruj.
Cov pawg sib txawv kev sib txuas ua rau theem sib txawv, tiv thaiv kev ua haujlwm sib txuas.
(5) tsim nyog rated muaj peev xwm sib piv:
Lub peev xwm piv ntawm cov hloov pauv hauv parallel yuav tsum tsis txhob loj heev, feem ntau tsis tshaj 3: 1.
Qhov sib txawv tshwj xeeb hauv lub peev xwm tuaj yeem ua rau tsis muaj kev thauj khoom thauj thiab ua tau dhau ntawm cov hloov me me.
2. Qhov zoo ntawm kev ua haujlwm parallel
(1) nce kev cia siab:
Yog tias ib qho hloov pauv tsis ua tiav, lwm tus tuaj yeem txuas ntxiv cov zog no.
(2) hloov pauv khoom thauj:
Transformers tuaj yeem hloov pauv lossis tawm raws li cov khoom siv thauj khoom, txhim kho kev txuag hluav taws xob.
(3) Muaj peev xwm nce ntxiv:
Cov haujlwm ua haujlwm thaum sib ua haujlwm ua haujlwm tau txhim kho lub kaw lus tag nrho cov khoom muaj peev xwm kom tau raws li cov khoom uas yuav tsum tau ua ke.
(4) yooj yim ntawm txij nkawm:
Nyob rau hauv ib qho kev teeb tsa parallel, ib transformer tuaj yeem coj offline rau kev saib xyuas yam tsis muaj kev cuam tshuam rau lub zog hluav taws xob.
3. Qhov tsis zoo ntawm kev ua haujlwm sib txawv
(1) COLROLUNCULICING Cov teeb meem tam sim no:
Parameter tsis muaj suab paj nruag (piv txwv li, kev sib zog sib piv, impedance) tuaj yeem ua rau kev ncig ua si, nce ntxiv.
(2) Cov kev sib qhia thauj tsis tau:
Txawv luv - Circuit Court Impedance Qhov tseem ceeb yuav ua rau tsis muaj kev thauj khoom thauj, ua rau muaj peev xwm overloading.
(3) nce ntxiv:
Kev soj ntsuam thiab kev sib koom tes ntau cov hloov pauv xav tau ntau dua kev tswj hwm cov tshuab.
4. Load sib koom ua haujlwm nyob rau hauv kev ua haujlwm parallel
Thaum Transformers muaj kev ua haujlwm hauv parallel, thauj sib koom nyob ntawm lawv cov lus luv - Circuit Court Impedance:
I1:I2=Z2:Z1I_1 : I_2 = Z_2 : Z_1I1:I2=Z2:Z1
I1, I2I_1, I_2I1, I2: Thauj cov kev hloov pauv ntawm ob lub transformers.
Z1, Z2Z_1, Z2Z_1, Z_2Z1, Z2: Luv 1 {{} Circuit Circuit yuam ntawm ob transformers.
Piv txwv li, yog tias luv - Circuit Court cuam tshuam ntawm ob transformers yog 5% thiab 10%}}}}}} {8 {{8 {{8 {{8 {{
5. Cov kauj ruam rau kev ua haujlwm sib txawv
(1) Txheeb xyuas qhov ntsuas tau sib xws:
Xyuas kom cov transformers 'rated voltage piv, luv - Circuit Court Impedance, thiab kev sib txuas pawg ua tau raws li kev ua haujlwm sib txuas ua haujlwm.
(2) Tsis muaj - phoo kev twb kev txuas mus rau:
Ua ntej, txuas cov kev hloov pauv tsis muaj kev thauj khoom los xyuas seb puas muaj cov dej ntws tawm hauv kev txwv.
(3) maj mam chaw thau khoom:
Maj mam nce lub nra thaum soj ntsuam cov thauj khoom tam sim no thiab ntsuas kub nce.
(4) Tseeb -} saib lub sijhawm saib xyuas:
Tsis tu ncua saib xyuas cov haujlwm ua haujlwm los xyuas cov ntau dhau lossis anomalies kom sai.
6. Piv txwv xam
Xav tias ob transformers:
Transformer A: 500 KVA, 5% impedance.
Transformer B: 250 kva, 5% yuam.
Txij li thaum luv - Circuit Court Imedance yog sib npaug, lub nra tau qhia raws li lub peev xwm piv:
Transformer ib tug nqa 500500+250 × 100% {} {\\} {\\ {{\\ {{{% ntawm lub nra.
Transformer B nqa nqa 250500+250 × 100% {} {\\} {\\ {{\\ {{{{{% ntawm lub nra.
Yog tias koj xav tau cov ntsiab lus ntxiv ntawm cov kev xam tshwj xeeb lossis cov lus pom zoo tsim qauv, xav nug!
