Khoom Description
Zinc oxide ntes yog ib hom tshiab ntawm tus ntes tau tsim nyob rau xyoo 1970s. Nws yog tsim los ntawm zinc oxide varistor. Txhua lub varistor muaj qee qhov hloov hluav taws xob (hu ua varistor voltage) thaum nws ua. Nyob rau hauv ib txwm ua hauj lwm voltage (uas yog, tsawg tshaj li lub varistor voltage) varistor tus nqi yog loj heev, uas yog sib npaug rau lub rwb thaiv tsev lub xeev, tab sis nyob rau hauv qhov kev txiav txim ntawm impulse voltage (ntau tshaj lub varistor voltage), lub varistor yog tawg. ntawm tus nqi qis, uas yog sib npaug rau lub xeev luv luv. Txawm li cas los xij, tom qab varistor raug ntaus, nws tuaj yeem rov qab mus rau lub xeev rwb thaiv tsev; Thaum qhov hluav taws xob siab tshaj qhov hluav taws xob varistor raug tshem tawm, nws rov qab mus rau lub xeev siab. Yog li ntawd, yog tias zinc oxide ntes tau teeb tsa rau ntawm txoj kab hluav taws xob, thaum xob laim tshwm sim, qhov hluav taws xob siab ntawm lub teeb hluav taws xob ua rau lub varistor tawg, thiab cov hluav taws xob tam sim no ntws mus rau hauv lub ntiaj teb los ntawm varistor, uas tuaj yeem tswj tau qhov voltage. ntawm txoj kab hluav taws xob nyob hauv qhov chaw nyab xeeb. Qhov no tiv thaiv kev nyab xeeb ntawm cov khoom siv hluav taws xob.
Paub meej ntawm cov khoom
Zinc oxide ntes yog cov khoom siv hluav taws xob siv los tiv thaiv ntau yam khoom siv hluav taws xob hauv lub zog hluav taws xob los ntawm kev puas tsuaj overvoltage thiab muaj kev tiv thaiv zoo. Vim hais tias cov yam ntxwv uas tsis yog-linear volt-ampere ntawm zinc oxide valve yog qhov zoo heev, tsuas yog ob peb puas microamps ntawm tam sim no tuaj yeem dhau los ntawm nws nyob rau hauv kev khiav hauj lwm voltage, ua rau nws yooj yim los tsim rau hauv cov qauv gapless, ua rau nws muaj kev tiv thaiv zoo, lub teeb. hnyav, thiab me me. feature. Thaum overvoltage invades, tam sim no ntws los ntawm lub valve phaj nce sai, uas txwv lub amplitude ntawm lub overvoltage thiab tso tawm lub zog ntawm lub overvoltage. Tom qab ntawd, zinc oxide valve phaj rov qab mus rau lub xeev siab, uas tso cai rau lub zog ua haujlwm zoo li qub.
Zinc oxide ntes tau muab faib ua ob pawg raws li lawv cov qauv:
1. Porcelain tsho: Porcelain tsho zinc oxide ntes tau muab faib ua plaub theem raws li lawv cov pa phem. Qib I yog rau hom zoo tib yam, Qib II yog siv rau hauv thaj chaw muaj kuab paug me me (qhov tshwj xeeb creepage nrug 20mm / KV), thiab Qib III yog rau kev siv hnyav. Cov cheeb tsam uas muaj kab mob (tshwj xeeb creepage nrug 25mm/kV), Theem IV yog siv nyob rau hauv qhov chaw muaj kuab paug heev (tshwj xeeb creepage nrug 31mm/kV).
2. Composite tsho: Cov tsho sib xyaw zinc oxide ntes yog ua los ntawm cov khoom siv silicone roj hmab sib xyaw ua lub tsho, thiab siv cov ntawv zoo zinc oxide resistor. Sab hauv siv cov qauv tshwj xeeb thiab sib sau ua ke siv cov cuab yeej siv siab heev. Nws muaj cov khoom siv roj hmab silicone thiab zinc oxide resistors. Qhov zoo dua ntawm cov yeeb yaj kiab. Ntxiv rau txhua qhov zoo ntawm cov plooj (porcelain-coated zinc oxide ntes), cov khoom lag luam no kuj muaj kev ua haujlwm zoo rwb thaiv tsev, ua kom muaj kuab paug, ua haujlwm zoo tawg, me me, lub teeb yuag, tsis xav tau kev saib xyuas, tsis yooj yim rau kev puas tsuaj. , txhim khu kev qha sealing, thiab durability. Kev laus kev ua tau zoo thiab lwm yam zoo.
Zinc oxide ntes tau muab faib ua peb pawg raws li cov qauv kev ua haujlwm: tsis muaj qhov sib txawv (W), nrog rau qhov sib txawv (C), thiab nrog qhov sib txawv (B).
Lub cev daim duab:
Cim npe nrov: Tuam Tshoj zinc oxide ntes manufacturers, lwm tus neeg, Hoobkas