Transformer gap tiv thaiv yog ib txoj kev tiv thaiv relay tshwj xeeb tsim los tiv thaiv qhov nruab nrab ntawm qhov hluav taws xob ntawm cov transformers.
1. Vim li cas thiaj li yuav tsum muaj kev tiv thaiv qhov sib txawv? - Keeb kwm thiab lub hom phiaj
Qhov nruab nrab Point Grounding Method: Hauv kuv lub teb chaws 110kV thiab saum toj kawg nkaus daim phiaj hluav taws xob, feem ntau siv qhov nruab nrab nruab nrab ntawm qhov nruab nrab. Txawm li cas los xij, txhawm rau txwv ib qho -theem luv luv- Circuit Court tam sim no thiab xyuas kom muaj kev ruaj ntseg, tsis yog tag nrho cov ntsiab lus ntawm qhov nruab nrab transformer yog ncaj qha hauv av; ib co yog ungrounded (piv txwv li, nruab nrab point rwb thaiv tsev ua hauj lwm).
Tsis muaj zog ntawm Qib Rwb thaiv tsev: Qhov nruab nrab ntawm qhov hluav taws xob hluav taws xob ntawm hom transformer no qis dua qhov kawg ntawm winding kawg. Thaum ib qho -theem hauv av txhaum lossis kab ua haujlwm tshwm sim, lub tshuab hloov pauv nrog qhov tsis sib xws ntawm qhov nruab nrab yuav muaj kev cuam tshuam ntau dhau (txog 2-3 npaug ntawm theem voltage), uas txaus los rhuav tshem nws qhov nruab nrab qhov nruab nrab.
Kev Tiv Thaiv Txoj Haujlwm: Lub luag haujlwm ntawm kev tiv thaiv qhov sib txawv yog txhawm rau rhuav tshem qhov sib txawv sai sai thaum muaj kev phom sij overvoltage tshwm sim ntawm qhov nruab nrab ntawm qhov nruab nrab, tsim txoj hauv kev hauv av, yog li tiv thaiv qhov nruab nrab ntawm qhov hluav taws xob los ntawm kev puas tsuaj.
2.Txoj Cai Ua Haujlwm ntawm Kev Tiv Thaiv Gap:
Cov ntsiab lus tseem ceeb ntawm kev tiv thaiv qhov sib txawv yog qhov sib txawv ntawm qhov paug tawm thiab ib txheej ntawm xoom-ib ntu tam sim no transformers.
Discharge Gap: Muaj ob qho kev tawm tsam hlau electrodes (rods lossis pob) nrog rau qee qhov kev ncua deb ntawm huab cua sib txawv ntawm lawv. Qhov kev ncua deb no yog xam raws li qhov tseeb, thiab nws qhov kev tawg hluav taws xob qis dua qhov hloov pauv nruab nrab ntawm qhov hluav taws xob tiv taus hluav taws xob tab sis siab dua qhov siab tshaj qhov hluav taws xob thaum lub sijhawm ua haujlwm.
Txheej txheem ua haujlwm:
Kev ua haujlwm li qub: Qhov nruab nrab qhov nruab nrab qhov hluav taws xob tsawg heev, qhov sib txawv tsis tso tawm, thiab kev tiv thaiv tsis ua haujlwm.
Overvoltage tshwm sim: Thaum muaj teeb meem hauv av lossis resonance tshwm sim hauv qhov system, qhov nruab nrab qhov nruab nrab qhov hluav taws xob nce siab tshaj qhov sib txawv tus nqi, qhov sib txawv ntawm huab cua tawg, ua ib qho arc uas luv luv -circuits qhov nruab nrab taw tes rau hauv av.
Zero-Sequence Tam sim no tiam:Tom qab qhov sib txawv tawg lawm, qhov loj xoom- ntu ntu tam sim no (lossis qhov sib txawv tam sim no) raug tsim tawm.
Kev Tiv Thaiv Kev Ua Haujlwm: Tus xoom- ntu tam sim no transformer kuaj pom qhov tam sim no thiab xa mus rau cov cuab yeej tiv thaiv.
3. Kev tiv thaiv Scope thiab kev sib koom tes
Lub ntsiab tiv thaiv: Transformer nruab nrab taw tes rwb thaiv tsev.
Lub luag haujlwm tiv thaiv thaub qab: Kev tiv thaiv qhov sib txawv feem ntau ua haujlwm ua thaub qab lossis ntxiv rau xoom-ib ntu tiv thaiv overcurrent. Rau cov transformers uas tsis muaj qhov nruab nrab ntawm qhov nruab nrab, xoom- kev tiv thaiv overcurrent tsis tuaj yeem ua haujlwm (vim tias tsis muaj txoj hauv kev), nyob rau hauv cov ntaub ntawv qhov sib txawv tiv thaiv yuav dhau mus.
Kev sib koom tes nrog Surge Arresters: Kev tiv thaiv qhov sib txawv feem ntau yog siv ua ke nrog cov surge arresters. Surge arresters txwv qhov amplitude ntawm overvoltages, thaum qhov khoob muab ib txoj hauv kev rau cov dej ntws loj. Qhov hluav taws xob tawm ntawm qhov sib txawv yog me ntsis siab dua qhov kev khiav hauj lwm voltage ntawm lub surge arrester.
Cov ntsiab lus
Yog li ntawd, kev tiv thaiv qhov sib txawv tuaj yeem nkag siab tias yog kev tiv thaiv kev tiv thaiv uas "saib nws tus kheej (qhov sib txawv) los tiv thaiv cov tub ntxhais (qhov nruab nrab ntawm qhov hluav taws xob)," thiab yog ib qho kev tiv thaiv kev nyab xeeb uas tsis tseem ceeb rau cov graded insulated transformers.
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Item |
Cov ntsiab lus |
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Lub npe |
Transformer Gap Protection |
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Cov Khoom Tiv Thaiv |
Nruab nrab Point Insulation hauv Chav Kawm - |
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Txoj Cai |
-Insulated Transformers Siv qhov tawg ntawm huab cua qhov sib txawv nyob rau hauv overvoltage los tsim ib xoom-sequence tam sim no pat |
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Activation Signal |
Gap Tam sim no |
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Ua kom tshwm sim |
Kev ncua sij hawm ntawm kev sib tsoo ntawm cov hluav taws xob ntawm ob sab ntawm lub transformer |
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Siv tau Scenarios |
110 kV thiab 220 kV transformers nrog cov ntsiab lus hauv av lossis tsis muaj qhov nruab nrab |
vS1-12 nqus Circuit Court breaker
VS1-12 nqus Circuit Court breaker yog ib qho khoom siv hloov hauv tsev nrog qhov ntsuas hluav taws xob ntawm 12kV thiab AC 50/60Hz. Nws txais ib qho kev sib koom ua ke ntawm kev ua haujlwm thiab tsim nyog rau ntau yam kev lag luam thiab kev lag luam mining, nrog rau cov khoom siv hluav taws xob. Nws tuaj yeem siv los ua ib lub tawb nqa khoom siv nrog KYN28A-12 switchgear, los yog raws li ib qho chaw ruaj khov nrog cov khoom siv sib cuam tshuam, ua rau nws haum rau XGN2 thiab lwm cov khoom ruaj khov.
kub muag khoom
tiv tauj peb
Shaanxi West Fais Fab Tongzhong Hluav Taws Xob Co., Ltd.
Hu rau: Ms.Grace Liu (Director of Sales Department)
Email: xdtz04@westpowerelectric.com
Txawb: +86 18091765882(WhatsApp/Wechat/skype)
Lub Vev Xaib: https://www.xdtzelectrical.com
