Kev tiv thaiv teeb tsa ntawm switchgear
Apr 08, 2021
10kV feeder switchgear feem ntau siv ob-theem kev tiv thaiv tam sim no nrog reclosing, thiab cov kab tseem ceeb yuav txais yuav optical fiber ntev qhov ntev thaiv kev tiv thaiv.
(a) Cov ntsiab lus tseem ceeb
Ob-theem tam sim no: qib dhau tam sim no tseem hu ua kev tiv thaiv nrawm nrawm; tsis muaj kev txwv lub sijhawm, teem dua siab tshaj qhov hluav taws xob luv tshaj tam sim no qhov kawg ntawm theem no; dhau-tam sim no ob-theem yog tseem hu ua lub sijhawm-sijhawm tam sim no-nrawm tiv thaiv kev tiv thaiv. Teem raws li qhov siab tshaj plaws kev ua haujlwm tam sim no siab tshaj qhov qis-qib tiv thaiv tam sim no nrawm-tiv thaiv kev tiv thaiv. Nws tuaj yeem raug siv los ua kev tiv thaiv kev tiv thaiv rau thawj ntu ntawm kab. Lub sijhawm ua haujlwm mus ncig yog feem ntau 0.5-1 thib ob.
Rov Sau Tseg: Thaum lub txim nyiaj siv ua haujlwm sab nrauv tau raug tshem tawm, lub tshuab hluav taws xob tau raug kaw hauv lub sijhawm luv luv, uas hu ua reclosing; qhov tseeb, feem ntau cov nyiaj siv ua haujlwm kab ua txhaum yog instantaneous lossis ib ntus, yog li reclosing yog kev rov ua haujlwm rau lub zog rov qab tus kheej feem ntau siv hauv kev ua haujlwm Ib txoj kev.
(2) Cov hom thiab kev teeb tsa ntawm cov khoom siv thaiv kev tiv thaiv ib txwm siv
Peb feem ntau siv ob hom, ib qho yog kev tiv thaiv electromagnetic, lwm qhov yog microcomputer tiv thaiv
1. Cov pes tsawg leeg ntawm cov khoom siv tiv thaiv:
(1) Kev tiv thaiv kev tiv thaiv hluav taws xob muaj li ntawm kev tiv thaiv tam sim no, lub sij hawm relay, kev sib txuas lus nruab nrab, teeb liab relay, reclosing relay, phaj siab thiab lwm yam
(2) Microcomputer tiv thaiv yog tsim ntawm lub zog ntsaws, ntsaws ntsaws, CPU ntsaws, AC ntsaws txuas, txiv neej-tshuab sib tham hauv lub zog, siab phaj, thiab lwm yam.
2. Kev tiv thaiv ntaus ntawv cov lus qhia thiab cov lus qhia:
(1) Cov ntaub ntawv kev ua ntawm lub tshuab hluav taws xob tiv thaiv hluav taws xob tau tsom rau ntawm lub teeb liab relay thiab rov ua dua lub teeb them rov qab. Tom qab kev tiv thaiv tau qhib, lub teeb liab sib txuas lus yuav rov ua haujlwm daim npav dr kom txog thaum nws rov ua haujlwm manually. Tsis tas li ntawd, tom qab lub tshuab hluav taws xob tiv thaiv hluav taws xob nws tus kheej yog qhov txawv txav, yuav tsis muaj qhov txawv txav tsis meej nyob rau hauv ib txwm muaj xwm txheej, thiab nws tsis yooj yim los nrhiav.
(2) Thaum ib qho kev ua haujlwm lossis lub tswb nrov thaum lub sijhawm ua haujlwm ntawm kev tiv thaiv microcomputer, LCD backlight yuav tig rov qab, thiab cov ntaub ntawv kev ua yuav tshwm ntawm lub LCD (saib cov lus hauv qab no). Nyob rau tib lub sijhawm, nws yuav raug tso rau hauv lub tshuab tiv thaiv kev tiv thaiv lossis kev tshuaj xyuas hauv ib cheeb tsam kom paub tseeb thiab ua tiav.
