Cov tam sim no zoo tib yam tam sim no siv tau los ua xoom ntu tam sim no transformers?

Ordinary tam sim no transformers tuaj yeem hloov cov thawj tam sim no loj dua rau hauv me me thib ob tam sim no los ntawm qee qhov kev hloov pauv, uas tuaj yeem siv rau kev tiv thaiv, ntsuas, thiab lwm yam. Kev ua haujlwm ntawm xoom ntu tam sim no transformer yog los tiv thaiv thiab txiav tawm lub zog hluav taws xob thaum muaj hluav taws xob poob lossis qhov cuam tshuam tshwm sim hauv Circuit Court. Cov npe ntawm ob qho tib si zoo sib xws, tab sis lawv txoj haujlwm sib txawv heev. Lawv qhov txawv thiab cov haujlwm tshwj xeeb yog dab tsi? Tsis muaj teeb meem siv los ntawm hom tam sim no transformer raws li xoom ib theem transformer nyob rau hauv txoj cai, tab sis nws rhiab heev nws txawv heev.
1. Kev ua haujlwm ntawm cov khoom siv tam sim no zoo tib yam
Ordinary tam sim no transformers tuaj yeem hloov cov thawj tam sim no loj dua rau hauv me me thib ob tam sim no los ntawm qee qhov kev hloov pauv, uas tuaj yeem siv rau kev tiv thaiv, ntsuas, thiab lwm yam. Lub transformer tam sim no nrog kev hloov pauv ntawm 400/5 tuaj yeem hloov qhov tam sim no ntawm 400A mus rau qhov tam sim no ntawm 5A.
2. Ua hauj lwm hauv paus ntsiab lus ntawm xoom sequence transformer
Lub hauv paus ntsiab lus ntawm xoom sequence tiv thaiv tam sim no yog raws li Kirchhoff txoj cai tam sim no: lub algebraic sum ntawm complex tam sim no ntws mus rau hauv ib qho ntawm lub voj voog yog sib npaug rau xoom. Raws li ib txwm muaj ntawm cov khoom siv hluav taws xob thiab cov khoom siv hluav taws xob, cov vector sum ntawm cov dej ntws hauv txhua theem yog sib npaug rau xoom. Yog li ntawd, qhov thib ob winding ntawm xoom sequence tam sim no transformer tsis muaj teeb liab tawm, thiab tus actuator tsis ua haujlwm. Thaum muaj teeb meem hauv av tshwm sim, vector sum ntawm cov dej ntws hauv txhua theem tsis yog xoom. Qhov txhaum tam sim no ua rau sib nqus flux tsim nyob rau hauv lub annular core ntawm xoom sequence tam sim no transformer. Lub induced voltage nyob rau hauv lub thib ob sab ntawm lub zero sequence tam sim no transformer ua rau lub actuator ua, tsav lub mus txawv tebchaws ntaus ntawv thiab hloov lub hwj chim mov network, ua tiav lub hom phiaj ntawm grounding txhaum tiv thaiv.
3. Muaj nuj nqi ntawm xoom sequence transformer
Thaum muaj hluav taws xob poob los yog qhov ua txhaum ntawm qhov hluav taws xob tshwm sim hauv Circuit Court, qhov kev tiv thaiv txiav tawm lub zog hluav taws xob.
4. Kev pab cuam rau xoom sequence transformers
Lub transformer tam sim no tuaj yeem ntsia tau rau ntawm txhua kab peb-theem, lossis cov xov hlau peb-theem tuaj yeem dhau los ntawm xoom ntu tam sim no transformer ua ke. Ib qho xoom ntu tam sim no transformer tuaj yeem raug ntsia rau ntawm kab nruab nrab N txhawm rau txheeb xyuas cov lej ntawm cov vectors tam sim no ntawm peb theem.
Daim ntawv thov tshwj xeeb ntawm xoom kab ke kev tiv thaiv tam sim no tuaj yeem txhim kho tam sim no transformer (CT) ntawm txhua kab peb-theem, lossis kom dhau ntawm peb-theem xov hlau ua ke los ntawm xoom sequence CT, A zero sequence C. cov kab nruab nrab NT, Siv cov CT no yog siv los txheeb xyuas cov vector tam sim no ntawm peb theem, uas yog, xoom sequence tam sim no Io, IA+IB+IC=IO. Thaum lub loads peb-theem txuas nrog cov kab sib npaug tag nrho (tsis muaj qhov ua txhaum hauv av thiab tsis xav txog qhov xau tam sim no ntawm cov kab thiab cov khoom siv hluav taws xob), IO=0; thaum peb-theem loads txuas nrog cov kab tsis sib npaug, IO=IN, thiab xoom ntu tam sim no yog qhov tsis sib npaug tam sim no IN; Thaum muaj qhov txhaum hauv av tshwm sim nyob rau hauv ib theem, ib-theem grounding txhaum tam sim no Id yog inevitably generated. Lub sijhawm no, qhov kuaj pom xoom ntu tam sim no IO=IN + Id yog cov vector sum ntawm peb-theem tsis sib npaug tam sim no thiab ib-theem grounding tam sim no.