Tus qauv tam sim no transformer ratio yog dab tsi?

Transformation ratio ntawm atam sim no transformeryog qhov piv ntawm thawj tam sim no mus rau theem nrab tam sim no, xws li 500/5, 250/5, 100/5, 75/5, 50/5, 25/5, thiab lwm yam. Piv txwv li, 500/5 txhais tau hais tias thaum thawj tam sim no mus txog 500A, qhov tam sim no induced nyob rau theem nrab yog 5A. Qhov ratio ntawm ob no yog qhov transformation ratio.

Qhov thib ob sab ntawm lub tam sim no transformer yog ib txwm 5A. Transformation ratio ntawm atam sim no transformeryog thawj qhov tam sim no muab faib los ntawm theem nrab tam sim no. Vim tias tam sim no transformers, tam sim no peb tuaj yeem ua ammeters nrog 5A ntsuas. Tam sim no relays tseem tuaj yeem ua nrog qhov ntsuas 5A.

Txhawm rau txiav txim siab qhov hloov pauv ntawm qhov hloov pauv tam sim no, koj thawj zaug yuav tsum nkag siab nws cov qauv kev ua haujlwm thiab cov ntawv thov scenarios.

Tam sim no transformers feem ntau yog siv los ntsuas cov dej ntws loj. Lawv ua qhov no los ntawm kev hloov cov tam sim no siab ntawm thawj sab mus rau hauv ib qho me me tam sim no ntawm ob sab, tso cai rau kev ntsuas siv tus qauv - range ammeter. Lub hauv paus winding ntawm lub transformer tam sim no feem ntau txuas nrog rau hauv lub ntsiab Circuit Court, thaum lub thib ob winding txuas nrog rau cov cuab yeej ntsuas lossis cov cuab yeej tiv thaiv.

Qhov kev hloov pauv yog qhov piv ntawm thawj zaug mus rau theem nrab tam sim no, feem ntau hais tias yog I1 / I2 lossis N2 / N1 (N1 yog tus naj npawb ntawm thawj winding lem, N2 yog tus naj npawb ntawm qhov thib ob winding lem), qhov twg I1 yog thawj tam sim no thiab I2 yog qhov thib ob tam sim no. Rau kev ua qauv, qhov thib ob tam sim no feem ntau kho ntawm 5A lossis 1A. Thaum xaiv qhov kev hloov pauv tsim nyog, xav txog cov hauv qab no:

• Qhov siab tshaj plaws kev khiav hauj lwm tam sim no ntawm lub load: xyuas kom meej tias cov thawj tam sim no tsis tshaj qhov siab tshaj plaws ntawm lub transformer.
• Kev ntsuas qhov tseeb: Cov kev hloov pauv tam sim no sib txawv tuaj yeem cuam tshuam qhov ntsuas qhov tseeb.
• Tus nqi-kev ua tau zoo: Xaiv tus nqi tshaj plaws- kev daws teeb meem zoo.

A tam sim no transformer(CT) yog ib qho cuab yeej uas siv lub hauv paus ntsiab lus ntawm electromagnetic induction los hloov lub hauv paus loj tam sim no rau hauv ib qho me me tam sim no rau kev ntsuas. CT muaj ib tug kaw hlau core thiab windings. Nws thawj winding muaj ib tug me me ntawm lem thiab txuas nrog nyob rau hauv series nrog rau tam sim no ntsuas.

Qhov kev hloov pauv hloov pauv yog tsim los rau cov xwm txheej sib txawv. Cov thawj tam sim no siab ua rau muaj qhov hloov pauv loj dua, thaum lub hauv paus qis qis ua rau muaj qhov sib piv me me. Txawm li cas los xij, nws yuav tsum tsim nyog. Piv txwv li, yog tias qhov siab tshaj plaws tam sim no tshaj 300A rau lub sijhawm ntev, lub 250/5 tam sim no transformer yuav hlawv tawm vim yog overload. Txawm li cas los xij, yog tias thawj qhov tam sim no qis dua, siv lub tshuab hluav taws xob loj dua tam sim no yuav ua rau qhov ntsuas tsis raug.

Rau 10kV siab-voltage metering, qhov voltage transformer piv yog 10kV / 0.1kV. Covtam sim no transformerratio yog txiav txim raws li qhov downstream load. Piv txwv li, yog hais tias tus downstream transformer yog 500kVA transformer, 50/5 piv yuav tsim nyog; Yog tias nws yog 630kVA transformer, 75/5 piv yuav tsim nyog.

 

 

Hauv luv luv, qhov ntsuas tam sim no yog xam raws li kev thauj khoom qis. Xaiv qhov piv txwv uas siab dhau lossis qis dhau yuav ua rau qhov ntsuas tsis raug.Tam sim no transformerhloov cov tam sim no loj rau hauv cov me me, kom ntseeg tau cov kev qhia tshwj xeeb rau cov khoom siv thib ob xws li ntsuas ntsuas, tiv thaiv, teeb liab, thiab tswj.