雷(lei)(lei)(lei)(lei)(lei)擊(ji)(ji)分為(wei)直(zhi)擊(ji)(ji)雷(lei)(lei)(lei)(lei)(lei)和感(gan)應(ying)(ying)雷(lei)(lei)(lei)(lei)(lei)。直(zhi)擊(ji)(ji)雷(lei)(lei)(lei)(lei)(lei)是雷(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)直(zhi)接落(luo)在(zai)(zai)雷(lei)(lei)(lei)(lei)(lei)擊(ji)(ji)物上(shang)(shang)，產(chan)生的(de)破壞(huai)(huai)最(zui)大；感(gan)應(ying)(ying)雷(lei)(lei)(lei)(lei)(lei)是雷(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)產(chan)生的(de)電(dian)(dian)(dian)磁波在(zai)(zai)導體上(shang)(shang)產(chan)生的(de)感(gan)應(ying)(ying)高壓(ya)，使連接到導體上(shang)(shang)的(de)電(dian)(dian)(dian)器過壓(ya)而(er)損壞(huai)(huai)。在(zai)(zai)電(dian)(dian)(dian)網上(shang)(shang)，已經安裝(zhuang)了多(duo)級(ji)避(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)器，但前級(ji)雷(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)的(de)殘存電(dian)(dian)(dian)壓(ya)或變頻器附近的(de)雷(lei)(lei)(lei)(lei)(lei)電(dian)(dian)(dian)感(gan)應(ying)(ying)電(dian)(dian)(dian)壓(ya)仍然會對變頻器造成破壞(huai)(huai)。 解決方案：在(zai)(zai)變頻器控制(zhi)柜(ju)中安裝(zhuang)進線(xian)避(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)器。 進線(xian)避(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)器可采用(yong)電(dian)(dian)(dian)源防雷(lei)(lei)(lei)(lei)(lei)模塊，滑道安裝(zhuang)，并(bing)聯(lian)接地。該(gai)避(bi)(bi)雷(lei)(lei)(lei)(lei)(lei)器模塊為(wei)間隙放電(dian)(dian)(dian)，沖(chong)擊(ji)(ji)放電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)15kA(10/350μ s) ，工作電(dian)(dian)(dian)壓(ya) 250V。也可以采用(yong)在(zai)(zai)電(dian)(dian)(dian)源線(xian)上(shang)(shang)并(bing)聯(lian)壓(ya)敏電(dian)(dian)(dian)阻防雷(lei)(lei)(lei)(lei)(lei)。
