Yuav ua li cas los txheeb xyuas qhov luv luv Circuit Court, qhib Circuit Court, thiab hluav taws xob xau nrog Multimeter?
3, Nrhiav luv luv Circuit Court
Lub luv luv Circuit Court yog hais txog qhov tsis muaj impedance kev sib txuas ntawm ob lub ntsiab lus Circuit Court uas muaj peev xwm sib txawv. Txhawm rau txheeb xyuas qhov luv luv, koj yuav tsum ua raws li cov kauj ruam hauv qab no:
1. Disconnect lub Circuit Court: Ua ntej, disconnect lub Circuit Court nyob rau hauv kev sim kom paub tseeb tias lub hwj chim yog muab tua. Qhov no yog ib kauj ruam tseem ceeb hauv kev ua kom muaj kev nyab xeeb.
2. Teem ntsuas hom: Teem lub multimeter rau DC kuj ntsuas hom. Rau ib qho digital multimeter, xaiv qhov tsim nyog ntawm kev ntsuas; Rau analog multimeters, xaiv cov iav qis tshaj plaws.
3. Kev ntsuas kev sib txuas: Txuas ob txoj hauv kev ntawm multimeter mus rau ob lub ntsiab lus sib txawv ntawm lub voj voog nyob rau hauv kev sim. Yog hais tias lub multimeter qhia infinity (xws li infinite kuj), nws txhais tau tias tsis muaj luv luv Circuit Court. Yog hais tias lub multimeter qhia tus nqi tsis kam ze rau xoom, nws tuaj yeem txiav txim siab tias muaj qhov luv luv.
4. Kev ua kom qis qis: Yog tias pom muaj qhov luv luv, koj yuav tsum rov qab tshem tawm qee lub voj voog kom pom qhov chaw tshwj xeeb ntawm qhov luv luv. Koj tuaj yeem maj mam nqaim qhov chaw ntawm qhov chaw luv luv los ntawm kev txiav txhua qhov txuas lossis txuas hauv Circuit Court ib los ntawm ib qho thiab rov ua cov kauj ruam 3. Thov xyuas kom meej tias lub voj voog nyob rau hauv kev sim raug txiav tawm txhua zaus cov khoom siv hluav taws xob raug txiav, thiab tos rau lub sijhawm kom paub meej tias cov nqi hauv Circuit Court tau depleted.
5. Kev ceev faj: Thaum ua qhov ntsuas hluav taws xob luv luv, xyuas kom meej tias cov khoom siv hluav taws xob tau raug kaw thiab kev ntsuas kev nyab xeeb ntawm lub ntsuas tau ua tiav. Tsis tas li ntawd, ceev faj tsis txhob kov qhov siab - qhov hluav taws xob thaum lub sijhawm ntsuas - lub sijhawm ntsuas kom tsis txhob muaj kev pheej hmoo ntawm hluav taws xob poob siab.
4, Nrhiav Circuit Court breaker
Circuit Court break yog hais txog kev tawg ntawm kev sib txuas hauv Circuit Court, uas ua rau tsis muaj peev xwm ntawm qhov tam sim no ntws. Txhawm rau txheeb xyuas qhov qhib Circuit Court, koj tuaj yeem ua raws li cov kauj ruam no:
1. Disconnect lub Circuit Court: Ua ntej, disconnect lub Circuit Court nyob rau hauv kev sim kom paub tseeb tias lub hwj chim yog muab tua.
2. Teem ntsuas hom: Raws li hom kev ntsuas hluav taws xob, teeb lub multimeter mus rau qhov tsim nyog tam sim no lossis voltage ntsuas hom. Rau ib qho digital multimeter, xaiv qhov tsim nyog ntawm kev ntsuas; Rau analog multimeters, xaiv cov iav ntau tshaj plaws.
3. Kev ntsuas kev sib txuas: Txuas ib qho txhuas ntawm multimeter mus rau qhov taw tes ntawm lub voj voog ntawm lub voj voog nyob rau hauv kev sim, thiab txuas rau lwm tus ua rau lub zog xav tau ntawm txoj hauj lwm ntawm lub voj voog. Yog hais tias lub multimeter qhia ib tug tam sim no los yog voltage tus nqi ze rau xoom, nws qhia tau hais tias muaj ib tug qhib Circuit Court.
4. Kev ua kom qis qis: Yog tias pom muaj kev cuam tshuam hauv Circuit Court, koj yuav tsum rov qab tshem tawm qee lub voj voog kom pom qhov chaw tshwj xeeb ntawm qhov tawg. Koj tuaj yeem siv daim duab kos duab thiab tshawb xyuas txhua yam khoom lossis cov xaim hauv Circuit Court ib los ntawm ib qho, thiab rov ua cov kauj ruam 3 kom maj mam nqaim ntawm qhov qhib qhov chaw qhib. Thov xyuas kom meej tias lub Circuit Court nyob rau hauv kev sim raug txiav tawm txhua lub sij hawm cov khoom siv hluav taws xob raug txiav, thiab tos rau lub sij hawm kom paub tseeb tias cov nqi hauv Circuit Court tau depleted.
5. Kev ceev faj: Thaum ua qhov kev ntsuas hluav taws xob hluav taws xob, xyuas kom meej tias lub hwj chim tau raug kaw lawm thiab kev ntsuas kev nyab xeeb ntawm lub ntsuas tau ua tiav. Tsis tas li ntawd, thaum hloov los yog tawm lub hwj chim, ua haujlwm nrog ceev faj. Rau siab -voltage circuits, yuav tsum tau ua raws li kev tiv thaiv.
5, Tshawb nrhiav cov dej ntws tawm tam sim no
Leakage yog hais txog qhov tsis muaj peev xwm ntawm qhov tam sim no los voj kom raug hauv Circuit Court, ua rau tam sim no ntws mus rau hauv av lossis lwm yam kev txawv txav. Txhawm rau txheeb xyuas qhov xau, koj tuaj yeem ua raws li cov kauj ruam hauv qab no:
1. Prepare the circuit: Reconnect the circuit under test to the power supply and ensure that all non essential devices are turned off to reduce errors.
2. Teem ntsuas hom: Teem lub multimeter rau AC tam sim no ntsuas hom. Xaiv qhov kev ntsuas kom tsim nyog.
3. Kev ntsuas tam sim no: Ua ntej, txuas ib qho txhuas ntawm multimeter mus rau theem kab (feem ntau yog txoj kab nyob) ntawm lub hwj huam mov, thiab txuas rau lwm cov coj mus rau hauv av taw tes lossis qhov xav tau lub voj voog txoj hauj lwm ntawm lub voj voog. Nyeem tus nqi tam sim no ntawm multimeter. Yog tias tsis yog -zero tam sim no qhov tseem ceeb raug kuaj pom, nws qhia tias muaj cov dej xau.
4. Kev ua kom qis qis: Yog tias pom muaj cov dej xau, koj yuav tsum rov qab tshem tawm qee lub voj voog kom pom qhov tshwj xeeb ntawm qhov xau. Koj tuaj yeem siv daim duab kos duab thiab tshawb xyuas txhua qhov sib txuas lossis xaim hauv Circuit Court ib qho los ntawm ib qho, thiab rov ua kauj ruam 3 kom maj mam nqaim qhov ntau ntawm qhov chaw xau. Thov xyuas kom meej tias lub Circuit Court nyob rau hauv kev sim raug txiav tawm txhua lub sij hawm cov khoom siv hluav taws xob raug txiav, thiab tos rau lub sij hawm kom paub tseeb tias cov nqi hauv Circuit Court tau depleted.
5. Kev ceev faj: Thaum kuaj xyuas cov dej xau, xyuas kom meej tias lub hwj chim tau raug kaw lawm thiab kev ntsuas kev nyab xeeb ntawm cov cuab yeej tau ua tiav. Tsis tas li ntawd, thaum hloov los yog tawm lub hwj chim, ua haujlwm nrog ceev faj. Rau siab -voltage circuits, yuav tsum tau ua raws li kev tiv thaiv.
