Ocsaíd Sinc Grád Friotaíochta
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Ocsaíd Sinc Grád Friotaíochta

Resistance grade zinc oxide is widely used in lightning arresters, and is the main raw material for making zinc oxide arresters; the made zinc oxide arresters have good characteristics and are a new type of arresters.

Seol Fiosrúchán

Cur síos ar an Táirge

Ocsaíd since grád frithsheasmhachta

Úsáidtear ocsaíd since grád frithsheasmhachta go forleathan i ngabhálaithe tintrí, agus is é an príomh-amhábhar chun gabhálaithe ocsaíd since a dhéanamh; tá tréithe maithe ag na gabhálaithe ocsaíd since déanta agus is cineál nua gabhála iad.

 

 

Ainm Táirge

Ocsaíd since

Foirmle mhóilíneach

ZnO

CAS NO

1314-13-2

EINECS UIMH

215-222-5

Dlús

5.606g / cm3

Meáchan móilíneach

81.38

Leáphointe

1975℃

Pointe Fiuchta:

2360ºC

Purity

0.99

Active substance content

0.997

CÓD H.S.

2817001000

Dealramh

White powder or crystal

 

The working principle of the zinc oxide arrester made ofresistance grade zinc oxide:

Tá an sruth a théann tríd an pláta comhla arrester ocsaíd since ag voltas rátáilte an-bheag, atá comhionann le hinslitheoir. Nuair a sháraíonn an voltas ar an ngabhdán ocsaíd since miotail luach seasta, casann an pláta comhla chun sruth mór a urscaoileadh tríd an pláta comhla isteach sa talamh, agus ní sháróidh a bhrú iarmharach voltas an trealaimh chosanta a sheasamh. Nuair a thiteann an voltas feidhme faoi bhun an voltais oibriúcháin, déanann an comhla an stát "ar" a fhoirceannadh go huathoibríoch agus an stát inslithe a athshlánú.

The zinc oxide arrester made of resistance grade zinc oxide is different from the traditional arrester:

1) Zinc oxide arrester made of resistance grade zinc oxide is a new type of arrester with a completely different concept from traditional arresters. Traditional lightning arresters all use silicon carbide valve plates, which are separated from the power supply by a gap during normal operation. When an overvoltage occurs, the gap is broken down and the valve plate discharges. The zinc oxide arrester made of resistance grade zinc oxide has no gap, which solves various problems caused by the gap discharge time and discharge stability, and brings about major changes in the characteristics and structure of the arrester.

2) The main component of the resistance chip made of metal zinc oxide is resistance grade zinc oxide, which exhibits high resistance under normal power frequency voltage, thus limiting the leakage current of normal operating conditions, and when the voltage exceeds the starting value (lightning voltage or internal overvoltage) At this time, the valve is “on” into a low-rent state to discharge the current, thereby limiting the voltage applied to the arrester. Because this kind of resistor has very good nonlinear volt-ampere

Item


Zinc oxideï¼ZZ0 á ríomh mar ábhar tirim)% â ‰ ¥

99.7

Potassium oxide(K)%≤

0.001

Sodium oxide(K)%≤

0.001

Ocsaíd ferric (Fe)% â ‰ ¤

0.002

Ocsaíd chaidmiam (Cd)% â ‰ ¤

0.001

Ocsaíd luaidhe LeadPbï¼ ‰% â ‰ ¤

0.005

Ocsaíd chopair (Cu)% â ‰ ¤

0.0002

Ábhar miotailïas Zn)% â ‰ ¤

NÍL

taise%

0.3

Ábhar Dothuaslagtha i Hci% â ‰ ¤

0.004

Caillteanas ar adhainte% â ‰ ¤

0.2

PH

7.0-8.0

The average particle size(D50)um ≤

0.5

Iarmhar ar criathar (44um)% â ‰ ¤

0.1

 

tréithe, tá feidhmíocht chosanta níos fearr aige ná gabhálaithe tintreach traidisiúnta.

Classification of zinc oxide arresters made of resistance grade zinc oxide:

1) Electric porcelain type zinc oxide arrester: Electric porcelain type zinc oxide arrester is used in conventional substations to replace the old general valve type and magnetic blow type arresters

2) Gabhálaí ocsaíd since-iata miotail: Tá sé ar cheann de chomhpháirteanna fearas leictreach comhcheangailte go hiomlán iata. Tá an friotóir ocsaíd since cóimeáilte in umar miotail, líonta le gás SF6, agus tá an bhlaosc miotail faoi thalamh.

Tá feidhmíocht chobhsaí ag an ocsaíd since grád friotaíochta a tháirgeann MST agus is amhábhar den scoth é do ghabhálaithe ocsaíd since;


Clibeanna te:

Catagóir Gaolmhara

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