Qhov sib txawv ntawm 3p thiab 4p lil fais hloov mus
Oct 23, 2025
Tso lus
Tus yuam sij sib txawv ntawm3P thiab 4p Dual Fais Hloov Hloovlus dag nyob rau hauv seb lawv puas hloov pauv ntawm kab nruab nrab (n). Ib qho kev hloov 3P tsuas yog hloov cov xov hlau peb nyob (L1, L2, thiab L3), tawm hauv txoj kab nruab nrab ib txwm txuas. Ib qho 4P hloov mus rau ob peb lub xov hlau nyob thiab cov kab nruab nrab ib txhij.
Cov tub ntxhais sib txawv ntawm ib nrais muag
| tus yam ntxwv | 3P Dual fais hloov mus | 4P Lub Vaard Hloov Hloov |
| Tus naj npawb ntawm tus ncej | 3-ncej | 4-ncej |
| Hloov tsheb | Peb {{-} theem nyob hlau (L1, l2, l3) | Peb {-} theem nyob hlau (L1, L2) + Hlau Hlau (N) |
| Pes Tsawg Kab Ua Qauv | Lub nruab nrab kab yeej ib txwm txuas nrog, cov kab xaim xoom | Nruab nrab thiab nyob hlau hloov pauv synchronously |
| Daim ntawv thov tseem ceeb tshaj plaws | Hloov ntawm lub zog tseem ceeb thiab lub zog thaub qab fais fab (los ntawm cov hloov pauv tib yam) | Hloov ntawm cov ntsiab thiab hluav taws xob; Hloov ntawm cov khoom siv fais fab uas muaj cov hauv av sib txawv |
| Kev tsis muaj teeb meem | Tsawg, muaj kev pheej hmoo ntawm nruab nrab tam sim no tsis meej pem thiab kev hloov pauv | Siab dua, tuaj yeem tawm tag nrho cov kev ua txhaum hluav taws xob thiab tsis txhob muaj cov khoom siv tam sim no |
| Tus nqi thiab qhov loj me | Tus nqi qis thiab me dua | Cov nqi siab dua thiab loj dua |
Cov Lus Qhia Kom Paub Txog
1. Ua haujlwm ua haujlwm thiab cov xoos kab ua ke (yog qhov tseem ceeb tshaj plaws)
Lub 3P hloov tsuas yog hloov mus rau peb lub xov hlau nyob. Lub nruab nrab xaim yog suav tias yog "cov khoom sib tw." Tom qab ob lub zog siv tau txuas nrog, lawv tau txuas ncaj qha rau hauv parallel los ua ib qho chaw tos tsheb loj, uas yog tom qab ntawd txuas nrog lub nra. Cias muab, lub nruab nrab xaim yog "ib txwm nyob."
Lub 4P hloov kuj tau kho cov hlau nruab nrab raws li kev tswj hwm "channel." Thaum tus hloov pauv yog ua yeeb yam, plaub xaim plaub ntawm (L1, L2, L2, thiab n) Cias muab, lub nruab nrab xaim yog "synchronously hloov mus."
2. Daim Ntawv Thov Kev Sau Npe
Qhov kev xaiv ntawm 3p lossis 4p feem ntau yog txiav txim siab los ntawm seb cov tshuab hauv av ntawm ob lub zog siv tau zoo ib yam nkaus.
Cov xwm txheej nyob qhov twg 3P hloov yuav tsum siv:
Ob lub ntsiab lus tseem ceeb los ntawm tib lub transformer lossis faib cov ntaub ntawv ntawm ob lub zog yog tib yam (lossis sab nraud hloov sab nraud) ntawm lub peev xwm transformer, tswj hwm tib lub peev xwm. Yuam kev siv 4P hloov mus hloov lub peev xwm nruab nrab tuaj yeem ua rau tsis ruaj khov vim tias qhov sib txawv me me ntawm kev hloov pauv kev pheej hmoo, qhia cov kev pheej hmoo tsis tsim nyog.
Cov ntsiab lus tseem ceeb: Thaum ob lub zog hluav taws xob muab tib lub ntsej muag ib yam, siv lub pob nyem 3P.
Scenarios Qhov chaw 4P hloov yuav tsum siv:
a. Mains - rau - generator hloov (feem ntau thiab tsim nyog):
Lub tshuab hluav taws xob kev ua haujlwm yog ywj siab, thiab nws qhov peev xwm nruab nrab yog txawv ntawm cov peev txheej nruab nrab nruab nrab. Siv lub zog 3P tawm ntawm lub neutrals ntawm ob lub system los txuas nrog ua ke, muaj peev xwm coj mus rau qhov chaw nruab nrab, thiab kev nyab xeeb ntawm cov cuab yeej tam sim no (RCD).
b. Lub zog los ntawm ntau qhov hloov pauv sib txawv (piv txwv li, lub zog loj los ntawm cov hloov sib txawv):
Lub hauv paus ntsiab lus yog tib yam li rau cov tshuab hluav taws xob, raws li cov tshuab hauv av ntawm ob lub transformers muaj kev ywj pheej.
c. Thaum lub to taub tiv thaiv yog ntsia thaum kawg ntawm lub system:
Txhawm rau kom ntseeg tau tias lub toastor tiv thaiv tau kom pom tseeb qhov sib txawv ntawm cov kab tsev nyob thiab nruab nrab yog los ntawm tib lub zog. Yog tsis ua li cas thiaj ua rau tus tiv thaiv swb lossis ua haujlwm tsis zoo.