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陶(tao)(tao)瓷(ci)(ci)氣(qi)體(ti)放(fang)電(dian)管(guan)，簡稱GDT，是(shi)一種開(kai)關型過(guo)壓(ya)防(fang)雷保(bao)(bao)護(hu)元器件。眾所周知，陶(tao)(tao)瓷(ci)(ci)氣(qi)體(ti)放(fang)電(dian)管(guan)GDT廣泛應用于(yu)防(fang)雷工程的(de)第一級或(huo)第二級保(bao)(bao)護(hu)上，常與限壓(ya)型防(fang)雷保(bao)(bao)護(hu)器件綜合應用。不論是(shi)各種信號電(dian)路的(de)防(fang)雷還(huan)是(shi)交直流電(dian)源的(de)防(fang)雷，都可以(yi)借助陶(tao)(tao)瓷(ci)(ci)氣(qi)體(ti)放(fang)電(dian)管(guan)將強大(da)的(de)雷電(dian)流泄放(fang)入大(da)地，對高頻電(dian)子(zi)(zi)線路的(de)保(bao)(bao)護(hu)有著明顯的(de)優越(yue)性。接下來，跟著專業的(de)電(dian)路保(bao)(bao)護(hu)專家東沃電(dian)子(zi)(zi)，一起來揭開(kai)陶(tao)(tao)瓷(ci)(ci)氣(qi)體(ti)放(fang)電(dian)管(guan)那層神(shen)秘的(de)面紗(sha)，再也不怕被(bei)忽悠了！

陶瓷氣體放電管工作原理

陶(tao)瓷氣(qi)體(ti)放(fang)電(dian)(dian)(dian)(dian)管，其(qi)內部是由(you)一(yi)個(ge)或多個(ge)放(fang)電(dian)(dian)(dian)(dian)間隙內充有惰(duo)性氣(qi)體(ti)組(zu)成的(de)密閉(bi)器件，其(qi)電(dian)(dian)(dian)(dian)氣(qi)性能跟(gen)氣(qi)體(ti)種(zhong)類、氣(qi)體(ti)壓力和電(dian)(dian)(dian)(dian)極(ji)(ji)距離(li)三者(zhe)相關，主(zhu)要(yao)應(ying)用于瞬時(shi)大電(dian)(dian)(dian)(dian)壓的(de)過電(dian)(dian)(dian)(dian)壓保護。其(qi)惰(duo)性氣(qi)體(ti)主(zhu)要(yao)是氖或氬，并保持一(yi)定的(de)壓力，同時(shi)電(dian)(dian)(dian)(dian)極(ji)(ji)表面涂(tu)以(yi)發射劑減少電(dian)(dian)(dian)(dian)子發射能。陶(tao)瓷氣(qi)體(ti)放(fang)電(dian)(dian)(dian)(dian)管工作原理是并聯(lian)在(zai)電(dian)(dian)(dian)(dian)路(lu)(lu)中，在(zai)正(zheng)常(chang)情況，由(you)其(qi)獨(du)有的(de)高阻(zu)抗(kang)和低電(dian)(dian)(dian)(dian)容特(te)性，幾乎(hu)對電(dian)(dian)(dian)(dian)路(lu)(lu)不產生任何影響；但，一(yi)旦有異(yi)常(chang)浪涌(yong)(yong)涌(yong)(yong)現(xian)時(shi)，GDT以(yi)納秒級(ji)的(de)響應(ying)速度(du)被擊穿放(fang)電(dian)(dian)(dian)(dian)，使得其(qi)阻(zu)抗(kang)下降，呈短路(lu)(lu)狀(zhuang)態，將浪涌(yong)(yong)電(dian)(dian)(dian)(dian)流通過地(di)線轉接(jie)給大地(di)，從(cong)而達(da)到電(dian)(dian)(dian)(dian)路(lu)(lu)防(fang)護作用；當(dang)異(yi)常(chang)浪涌(yong)(yong)消(xiao)失(shi)，GDT迅速回到了高阻(zu)狀(zhuang)態，電(dian)(dian)(dian)(dian)路(lu)(lu)正(zheng)常(chang)運行。

陶瓷氣體放電管特性揭秘

東沃電(dian)(dian)子，在研發、生產電(dian)(dian)路保護(hu)器(qi)件(jian)方面擁有精(jing)湛的(de)(de)技術(shu)水平和豐富的(de)(de)研發經(jing)驗，為廣大客戶提供(gong)高品質的(de)(de)保護(hu)器(qi)件(jian)產品，只為電(dian)(dian)路更安全。東沃電(dian)(dian)子結(jie)合陶瓷(ci)氣(qi)體放(fang)電(dian)(dian)管的(de)(de)實際應用，總結(jie)出幾點特點，助力大家更好地(di)了解陶瓷(ci)氣(qi)體放(fang)電(dian)(dian)管。

√ 納秒級響應速度

√ 穩定的擊穿電壓

√ 低電容特性

√ 高絕緣電阻

√ 無穿越電壓

√ 對原電路(lu)無影響，電路(lu)設(she)計簡單方便

√ 無(wu)放(fang)射性，對人體(ti)、環境和生態無(wu)影響

√ 高可靠性，不(bu)易損壞，使(shi)用期限長

由于陶瓷器氣體放電管獨有(you)的特性(xing)，廣泛應(ying)用各種場合，是一種常用、高效的防(fang)雷(lei)保護(hu)器件。

陶瓷氣體放電管選型原則

陶(tao)(tao)瓷氣(qi)體(ti)放(fang)電(dian)(dian)(dian)管，外形圓柱形，按照電(dian)(dian)(dian)極(ji)數，可分(fen)為二極(ji)管放(fang)電(dian)(dian)(dian)管和三(san)級放(fang)電(dian)(dian)(dian)管兩種(zhong)，帶引(yin)線和不帶引(yin)線兩種(zhong)結構形式，型號繁多，如何(he)選擇(ze)正(zheng)確(que)型號陶(tao)(tao)瓷氣(qi)體(ti)放(fang)電(dian)(dian)(dian)管是采購商最頭痛(tong)的難題？東(dong)沃電(dian)(dian)(dian)子(zi)，一家專業的陶(tao)(tao)瓷氣(qi)體(ti)放(fang)電(dian)(dian)(dian)管生產(chan)廠(chang)家，為您帶來滿滿的陶(tao)(tao)瓷氣(qi)體(ti)放(fang)電(dian)(dian)(dian)管選型干貨：

1、陶瓷氣體放電(dian)(dian)管的(de)(de)加(jia)入(ru)前提條件是陶瓷氣體放電(dian)(dian)管的(de)(de)直流擊穿電(dian)(dian)壓的(de)(de)下限值(zhi)必須高于電(dian)(dian)路中的(de)(de)最大(da)正常工作電(dian)(dian)壓，才(cai)能(neng)不能(neng)影響電(dian)(dian)路正常工作。

2、陶瓷(ci)氣(qi)體放電(dian)(dian)(dian)管(guan)的過保持電(dian)(dian)(dian)壓盡可能高，保證電(dian)(dian)(dian)路中工作電(dian)(dian)(dian)壓不會引起(qi)持續導通現象。當電(dian)(dian)(dian)路中的過電(dian)(dian)(dian)壓消失(shi)后，要確保陶瓷(ci)氣(qi)體放電(dian)(dian)(dian)管(guan)及時熄滅，否(fou)則(ze)會影響(xiang)電(dian)(dian)(dian)路的正常運行。

3、確保(bao)陶瓷氣體放電管(guan)的沖擊(ji)擊(ji)穿電壓值必須低(di)于電路中所能承受的最高(gao)瞬時電壓值。

4、根(gen)據線路中可能竄入的(de)沖擊電流強度(du)，確定所選用放(fang)電管必須(xu)達(da)到的(de)耐沖擊電流能力。

5、必要時，陶瓷氣體放電(dian)管配上適當(dang)的短(duan)路裝(zhuang)(zhuang)置，FS裝(zhuang)(zhuang)置，也叫失效保護裝(zhuang)(zhuang)置。

欲想了解更多有關陶瓷氣體放電(dian)管知識和電(dian)路防(fang)(fang)護方案，防(fang)(fang)雷(lei)、防(fang)(fang)浪涌(yong)、防(fang)(fang)靜電(dian)專家東(dong)沃(wo)電(dian)子隨時您(nin)來(lai)撩！！！