Main Fais fab Transformer Neutral Point Gap Grounding

Kev paub txog qhov nruab nrab qhov chaw tawm qhov sib txawv ntawm lub ntsiab fais fab transformer

1. Qhov paug tawm yog siv los tiv thaiv tus neeg ntes. Thaum lub teeb hluav taws xob hluav taws xob ntau tshaj tus nqi uas tus neeg ntes tuaj yeem tiv thaiv, txhawm rau tiv thaiv tus neeg ntes los ntawm kev puas tsuaj los ntawm kev puas tsuaj, qhov sib txawv ntawm qhov hluav taws xob raug teeb tsa. Thaum muaj hluav taws xob hluav taws xob siab, qhov sib txawv tau tawg thiab tawm, yog li tiv thaiv tus neeg ntes. Raws li kev koom tes nrog ib leeg, nyob ntawm qhov hluav taws xob tiv thaiv hluav taws xob ntawm tus ntes.

2. Tiv thaiv kom tsis txhob muaj kev phom sij overvoltage ntawm qhov nruab nrab ntawm qhov siab-voltage sab txhaum tom qab qhov kev hloov hauv av.

3. Kev tiv thaiv qhov sib txawv ntawm qhov nruab nrab ntawm qhov system ntawm 110KV thiab saum toj no tsuas yog tiv thaiv overvoltage! Vim hais tias cov khoom siv nyob rau theem voltage no tau txais kev ntsuas qhov ntsuas hluav taws xob vim qhov teeb meem ntawm kev nqis peev hauv rwb thaiv tsev, qhov rwb thaiv tsev qib qis kuj nyob ze ntawm qhov nruab nrab. Yog tias overvoltage tshwm sim, nws yuav ua rau cov khoom puas tsuaj, thiab kev tiv thaiv qhov sib txawv tuaj yeem ua lub luag haujlwm, tab sis vim yog xaiv cov ntsiab lus nruab nrab hauv av, lub kaw lus yuav tsum tsis txhob muaj ntau cov ntsiab lus nruab nrab hauv av, yog li qee qhov kev hloov hluav taws xob tseem ceeb muaj qhov nruab nrab taw tes hauv av. . Tsis kaw (configuration vim li cas rau kev tiv thaiv). Nyob rau lub sijhawm no, yog tias overvoltage tshwm sim vim yog lub transformer nws tus kheej, lub transformer yuav raug tiv thaiv los ntawm qhov sib txawv tiv thaiv. Lub hauv paus ntsiab lus yog lub zog tawg. Nyob rau hauv ib qho hluav taws xob, qhov sib txawv yuav tawg, ua rau qhov hluav taws xob mus rau hauv av.

Gap tiv thaiv tuaj yeem ua lub luag haujlwm ntawm lub zog loj transformer winding rwb thaiv tsev. Thaum lub kaw lus muaj overvoltage (atmospheric overvoltage, kev khiav hauj lwm overvoltage, resonance overvoltage, xob laim ntaus overvoltage, thiab lwm yam), lub zero-sequence tiv thaiv ua thaum qhov sib txawv yog tawg, thiab qhov sib txawv yog tsis muaj ib tug overvoltage tiv thaiv kev txiav txim. transformer thaum tawg.

4. Ua tau raws li qhov xav tau ntawm kev tiv thaiv.

5. Tiv thaiv overvoltage los ntawm qhov sib txawv ntawm lub sijhawm kaw thiab kev puas tsuaj rau rwb thaiv tsev.

Lub ntsiab lus ntawm qhov hu ua guard gap:

Nws yog ib qho yooj yim tiv thaiv hluav taws xob ntaus ntawv uas muaj ob lub hlau electrodes. Ib qho ntawm cov electrodes yog tsau rau ntawm lub rwb thaiv tsev thiab txuas nrog cov xaim nyob, lwm cov electrode txuas nrog cov khoom siv hauv av los ntawm qhov sib txawv ntawm qhov sib txawv, thiab qhov sib txawv ntawm qhov sib txawv yog khaws cia ntawm ob lub electrodes. Nyob rau hauv ib txwm muaj, qhov sib txawv tiv thaiv yog rwb thaiv tsev los ntawm hauv av, thiab lub zog dielectric qis dua qhov rwb thaiv tsev ntawm cov kab tiv thaiv. Yog li ntawd, thaum txoj kab raug xob laim, qhov kev tiv thaiv qhov sib txawv yog thawj zaug tawg vim yog overvoltage, thiab ntau qhov hluav taws xob tam sim no raug tso tawm. rau hauv lub ntiaj teb, lub overvoltage yuav txo tau zoo heev, thiaj li tiv thaiv lub Circuit Court thiab cov khoom siv hluav taws xob.