Thawj qhov kev txhaj tshuaj tam sim no yog cov txheej txheem tseem ceeb hauv kev tsim hluav taws xob engineering. Nws yog siv los xyuas qhov kev ncaj ncees ntawm cov tshuab hluav taws xob, nrog rau cov hluav taws xob hloov hluav taws xob, hloov hluav taws xob, thiab kev tiv thaiv relays.
Qhov kev sim no suav nrog kev txhaj cov mem tes siab tam sim no rau hauv qhov system thiab ntsuas cov lus teb. Lub hom phiaj tseem ceeb ntawm kev xeem yog txhawm rau txheeb xyuas lub sijhawm mus ncig ntawm kev tiv thaiv relays. Kev txhaj tshuaj ntawm tam sim no tsim ib qho chaw sib nqus uas ua rau cov relay, ua rau nws mus ncig thiab cais qhov tsis raug ntawm qhov system.
Lub hauv paus ntsiab lus ua haujlwm ntawm thawj qhov kev txhaj tshuaj tam sim no yog dab tsi?
(1) Lub ntsuas hluav taws xob suav nrog ib lub ntsuas tam sim no thiab ib lub ntsuas tam sim no. Hluav taws xob tuaj yeem nce ntxiv raws li qhov xav tau
Kev ntsuas hluav taws xob) tuaj yeem txuas ntxiv volt-ampere yam ntxwv ua haujlwm.
(2) Kev ntsuas tam sim no suav nrog microcurrent xoom impedance CT, programmable amplifier circuit thiab sampling circuit.
(3) Lub ntsuas hluav taws xob ntsuas hluav taws xob suav nrog PT cais cov teeb liab tau txais Circuit Court, programmed amplifier Circuit Court thiab ib qho piv txwv Circuit Court.
(4) Los ntawm 16- me ntsis microcontroller siv lub computer digital real-time nrhiav tau txoj kev, los ntawm kev ntsuas ntawm voltage teeb liab amplitude, hauv paus
Raws li qhov voltage proportional relation, voltage ntsuas tus nqi tuaj yeem xam los ntawm kev ntsuas qhov voltage teeb liab amplitude thiab teeb tsa hluav taws xob.
Tus nqi hluav taws xob yog piv rau kev paub txog kev ua haujlwm ntawm lub sijhawm tsis siv neeg. Raws li qhov piv txwv tam sim no, cov khoom tsim tawm tuaj yeem suav tau
Kev tiv thaiv overcurrent yog pom tau los ntawm kev ntsuas qhov tam sim no / voltage teeb liab amplitude thiab muab piv nrog cov nqi teev
Txoj haujlwm.