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Alternating Current System thiab Direct Current System (AC & DC System)
1.Lub tshuab hluav taws xob DC muaj cov haujlwm ntawm kev ntsuas cov chaw taws teeb, cov chaw taws teeb tswj, cov chaw taws teeb tswj, thiab lwm yam, uas tuaj yeem paub txog kev ua haujlwm tsis muaj neeg saib xyuas thiab tuaj yeem ua tau raws li kev ua haujlwm ib txwm muaj thiab lav qhov qhib thiab kaw ntawm kev tiv thaiv relay, tsis siv neeg cov khoom siv, high-voltage circuit. breakers, teeb pom kev zoo teeb pom kev zoo thiab lub computer tsis cuam tshuam nyob rau hauv kev sib tsoo. Cov khoom siv hluav taws xob muab DC lub zog lossis thaum AC lub zog poob, AC lub zog yog muab los ntawm lub tshuab inverter.
Nws yog tsim rau cov chaw uas yuav tsum tau DC fais fab mov xws li fais fab nroj tsuag, substations, electrified railways, petrochemicals, metallurgy, switching chaw nres tsheb thiab cov tsev loj, thiaj li yuav ua kom muaj kev ruaj ntseg thiab txhim khu kev qha cov khoom.
2.Cov khoom siv hluav taws xob AC ntawm cov khoom siv hluav taws xob thib ob yog raws li cov kev cai ntawm "Power Plant, Substation Engineering thiab Relay Protection Test Instrument Configuration Quota" thiab Ministry of Electric Power Industry "Power System Relay Protection and Safety Automatic Equipment Kev tiv thaiv kev sib tsoo". Kev xaiv ntawm cov khoom siv hluav taws xob me me tiv thaiv luv luv thiab dhau ntawm Circuit Court, muab cov khoom siv hluav taws xob yooj yim thiab txhim khu kev qha rau cov khoom siv thib ob hauv qhov chaw ua haujlwm, thiab muab kev lees paub zoo rau kev txhim kho ntau yam kev ua haujlwm zoo thiab ua kom ntseeg tau. kev nyab xeeb ntawm cov neeg ua haujlwm thiab cov khoom siv.
khoom Introduction
1.Cov yam ntxwv ntawm DC system ntaus ntawv:
Microcomputer tswj siab zaus hloov DC system cov cuab yeej muaj qhov hluav taws xob siab thiab ruaj khov tam sim no, me me, lub teeb yuag, kev ua haujlwm siab, cov zis tawm ripple, tsis tshua muaj kev sib haum xeeb, qib siab ntawm automation thiab kev ntseeg siab, thiab tuaj yeem nruab nrog cadmium Nickel roj teeb, kua qaub. -cov roj teeb pov thawj thiab cov roj teeb uas tswj tau cov kua qaub tuaj yeem tsis tuaj yeem saib xyuas.
2. Cov peev txheej ntawm daim ntawv thov ntawm AC system ntaus ntawv:
(1) Thaum lub peev xwm tso zis ntawm lub cuab yeej yog tag nrho loaded, nws yuav cia li txwv tam sim no yam tsis muaj overloading;
(2) Cov cuab yeej muaj lub luag haujlwm ntawm kev kuaj xyuas tus kheej, kev kuaj tus kheej tsis raug, kev rov qab los ntawm tus kheej thiab kev tswj xyuas ntse.
(3) Cov cuab yeej tswj tau raws li qhov tam sim no thaum lub sijhawm ua haujlwm, thiab tsis muaj peev xwm ntawm resonance nrog lub kaw lus impedance
