Yuav ua li cas kho kom haum qhov tsawg - pa taws tswj

Nyob rau hauv qhov qis - voltage zog faib khoom, tusTsawg - voltage them maub losyog "lub hlwb" ntawm tag nrho cov kev pab cuam lub zog hluav taws xob. Qhov tseeb ntawm nws qhov chaw teeb tsa tsis ncaj qha rau kev ua tau zoo ntawm kev them nyiaj ua haujlwm thiab kev nyab xeeb ntawm cov khoom siv. Kev them nqi tsis yog yuav ua rau tsis muaj kev them nyiaj tsis txaus, kev them nyiaj ntau dhau, oscillation thaum hloov, lossis txawm puas rau lub capacitors. Yog li, yuav ua li cas yuav tsumTsawg - voltage them maub losyuav raug hloov kho kom raug?

Ⅰ. Kev Ntsuas Hluav Taws Xob Kev Ntsuas Hluav Taws Xob

Qhov no yog "qhov muag" uas cov maub los uas cov maub los siv rau kev pom lub hwj huam, thiab nws yuav tsum tau teeb tsa kom yog.

1. PT piv (Transformer piv): Teeb cov feem ntawm cov hloov hluav taws xob. Piv txwv li, yog tias cov lus qhia voltage yog 380V thiab nws yog cov qauv los ntawm 380V / 100V PT, ces qhov sib piv yog teem rau 3.8 (piv txwv li, 380/100). Yog tias kuaj tau ua tiav ncaj qha, nws tau teeb tsa rau 1.

2. Ct piv (hloov pauv hloov tshiab): Teeb cov feem ntawm cov hloov pauv tam sim no. Nov yog qhov muaj feem cuam tshuam! CT piv=} thawj ntawm CT / theem nrab tam sim no ntawm CT.

Ii. Cov chaw teeb tsa rau hloov cov tsis muaj thiab tswj txoj hauv kev

1. Hloov chaw pib thiab ncua:

Cov lus qhia pib (C / K) Nws tuaj yeem yog teeb tsa thaum 60% txog 100% ntawm lub peev xwm ntawm ib pawg capacitors.

Kev ncua sij hawm (ncua sij hawm): Txhawm rau tiv thaiv ntau heev ntawm kev hloov chaw vim kev thauj khoom hloov pauv hloov, ncua yuav tsum teeb tsa. Feem ntau, nws tau teeb tsa ntawm 30 thiab 120 vib nas this. Qhov ntau dua cov kev thauj khoom hloov pauv, ntev dua qhov ntev yuav tsum yog.

2. Hloov hom (tswj hom):

Kev sib hloov hom: tus muaj peev xwm tau hloov pauv ntawm thiab tawm ua ntu zus los xyuas kom meej cov kev ua haujlwm ntawm txhua tus neeg hu thiab lub sijhawm siv sib luag, yog li txuas ntxiv rau lub neej. Hom no yog pom zoo.

Yuav Hloov Hloov (Sequence): Ib txwm ua ntej hloov ntawm cov pab pawg hauv cov pab pawg, cov hau kev no tuaj yeem yooj yim rau kev coj thiab kua muag ntawm thawj pawg tau hloov.

III. Kev tiv thaiv parameter chaw

Qhov no yog "fuse" uas ua kom muaj kev nyab xeeb ntawm tus kws tshuaj muaj zog.

1. Tshaj kev tiv thaiv voltage: teeb ib qho txwv kev txwv sab saud. Thaum cov grid voltage tshaj tus nqi no, tus maub los yuav ua ntu zus tshem tawm cov capacitors uas tau txuas nrog. Nws feem ntau yog teem rau ntawm 430V mus rau 440V.

2. Under voltage tiv thaiv: teeb tsa qhov chaw voltage, feem ntau tau teem rau 300v mus rau 320V.

3. Kev tiv thaiv Harmonic (harmonic kev tiv thaiv): Yog hais tias daim phiaj muaj cov neeg muaj kev sib raug zoo (tshwj xeeb yog nyob rau hauv 3th zaus), Haritive Volrage yuav tsum tau siv. Thaum lub voltage distortion tus nqi yog ntau dhau high, capacitors yuav tsum tsis txhob koom nrog tiv thaiv Harmonic amnification thiab kev puas tsuaj rau lub capacitors. Qhov pib yuav tsum tau teeb tsa raws li cov xwm txheej tshwj xeeb (piv txwv li, 4% mus rau 5%).