Kev Tiv Thaiv Kev Ua Haujlwm Dab Tsi Puas Yog Qhov Nruab Nrab Grounding Resistor Txiaj Ntsig Feem ntau muab?

CovNeutral Grounding Resistor txeeua raws li qhov tseem ceeb ntawm kev txhawb nqa cov cuab yeej tiv thaiv rau nruab nrab- thiab qis-voltage fais fab kev faib tshuab, kev lag luam thiab mining fais fab mov thiab cov tshuab hluav taws xob. Qhov sib txawv ntawm kev tiv thaiv tam sim no muaj los ntawm cov pa hluav taws xob thiab cov tiv thaiv, nws tsom rau kev ua txhaum cai, kev txwv tam sim no, kev ruaj ntseg hluav taws xob thiab kev tiv thaiv kev pheej hmoo, ua lub luag haujlwm tseem ceeb tiv thaiv kev ua txhaum hauv av hauv cov phiaj xwm hluav taws xob. Nws cov teebmeem kev tiv thaiv npog plaub qhov loj: kev tiv thaiv cov khoom siv, daim phiaj hluav taws xob ruaj khov, tiv thaiv kev phom sij thiab kev ua haujlwm-thiab-kev txhawb nqa.
Ua ntej tshaj plaws, nws txoj haujlwm tseem ceeb tshaj plaws yog txwv ib theem-rau-hauv av txhaum tam sim no. Hauv kev ua haujlwm fais fab, ib-theem-rau-hauv av faults sawv cev rau feem ntau tsis ua haujlwm hom, suav txog ntau dua 80% ntawm tag nrho cov kab sib chaws txhaum. Yog tias tsis muaj kev txwv tam sim no los ntawm Lub Tuam Txhab Nruab Nrab Nruab Nrab Resistor, qhov txhaum tam sim no yuav nce siab thaum lub sijhawm ua txhaum. Cov hluav taws xob luv luv tam sim no yuav cuam tshuam ncaj qha rau cov cuab yeej siv hluav taws xob xws li cov hloov pauv, hloov pauv thiab cov kab hluav taws xob, ua rau muaj kev puas tsuaj tsis zoo xws li cov khoom siv hluav taws xob hluav taws xob, cov kab hluav taws xob tawg thiab cov khoom siv hluav taws xob eroded. Nws yuav ua rau cov cuab yeej siv lub neej luv luv thiab ua rau muaj kev cuam tshuam ncaj qha. Los ntawm kev sib txuas cov resistors rau hauv circuits, Lub Nkoj Nruab Nrab Grounding Resistor txee txo qhov kev ua txhaum tam sim no amplitude thiab ua kom tam sim no nyob rau hauv ib qho kev nyab xeeb thiab tswj tau ntau yam, yog li tiv thaiv cov khoom siv hluav taws xob tseem ceeb ntawm qhov chaw.
Qhov thib ob, cov cuab yeej siv tau zoo suppresses ntau yam txawv txav dhau-voltages thiab tiv thaiv kev sib tsoo kab sib chaws. Thaum ib qho kev ua txhaum ib-theem-rau-hauv av tshwm sim nyob rau hauv ib txwm ungrounded system, intermittent arc-grounding over-voltage nyhav tshwm sim. Tsis tas li ntawd, qhov system-parameter tsis sib haum xeeb tuaj yeem ua rau resonant over-voltage. Xws li cov hluav taws xob ntau dhau mus txog qhov sib npaug siab heev thiab tsis tu ncua ua rau cov ntsiab lus tsis muaj zog rwb thaiv tsev nyob rau hauv daim phiaj hluav taws xob. Lawv maj mam rhuav tshem cov txheej txheem rwb thaiv tsev ntawm cov kab, cov hloov pauv thiab cov cuab yeej hloov pauv thiab ua rau muaj kev nyab xeeb loj heev xws li cov ntsiab lus hauv av, theem-rau-theem luv luv, kab hluav taws xob thiab cov khoom tawg. Lub Neutral Grounding Resistor txee sai sai siv lub zog ntau dhau los ntawm kev ua txhaum, damps oscillating voltages, restrains over-voltage amplitudes thiab tshem tawm rov qab arc ignition thiab extinction nrog rau lub kaw lus resonance. Nws txo qis qhov tshwm sim ntawm daim phiaj-cov rwb thaiv tsev tawg.
Tsis tas li ntawd, cov cuab yeej ua kom cov kab sib chaws ruaj khov thiab ua kom tsis muaj kev sib kis. Thaum lub sijhawm ua haujlwm ib txwm ua haujlwm, nruab nrab-point peev xwm nyob twj ywm. Thaum muaj qhov ua txhaum hauv av tshwm sim, qhov nruab nrab-point muaj peev xwm hloov pauv thiab peb-theem voltages tsis sib npaug. Cov teeb meem hluav taws xob tom qab ntawd yuav tshwm sim thoob plaws thaj chaw siv hluav taws xob thiab cuam tshuam rau tag nrho cov khoom siv hluav taws xob qis qis. Lub Neutral Grounding Resistor txee kho qhov nruab nrab-point peev xwm thiab sib npaug peb-theem voltage sib txawv. Nws tiv thaiv ib qho kev ua txhaum hauv av los ntawm kev nce mus rau theem-rau-theem luv luv Circuit Court thiab loj-qhov hluav taws xob hluav taws xob, txwv tsis pub nthuav dav thiab tswj tag nrho cov haujlwm ua haujlwm ntawm daim phiaj hluav taws xob.
Thaum kawg, nws muab kev tiv thaiv tsis ncaj rau kev pabcuam kev ua haujlwm-thiab-tsim haujlwm nrog rau kev nyab xeeb ntawm tus kheej. Tom qab muab tso rau hauv qhov kev pab cuam, lub cuab yeej tsis ua rau lub hwj huam mov tam sim ntawd thaum muaj teeb meem. Hloov chaw, nws tswj xyuas qhov kev ua haujlwm luv luv los ntawm kev txwv tam sim no thiab kev ruaj ntseg voltage. Qhov no tso cai rau cov neeg ua haujlwm-thiab-tus neeg saib xyuas lub sijhawm txaus los nrhiav thiab daws qhov yuam kev, ua kom lub zog txuas ntxiv thiab txo qhov poob los ntawm kev txiav hluav taws xob. Lub caij no, kev tswj xyuas qhov txhaum tam sim no tiv thaiv cov kauj ruam siab dhau ntawm qhov av thiab kev siv hluav taws xob ntau dhau ntawm cov khoom siv hauv tsev, txo qis hluav taws xob txaus ntshai rau cov neeg ua haujlwm soj ntsuam ntawm qhov chaw. Nws suav nrog ob qho txiaj ntsig kev ua haujlwm ntawm daim phiaj hluav taws xob thiab cov neeg ua haujlwm kev nyab xeeb ntawm qhov chaw, thiab txaus siab rau kev tiv thaiv kev nyab xeeb rau cov khoom siv hluav taws xob xws li kev lag luam thiab kev lag luam mus rau kev teeb tsa hauv pej xeem.