TVSS (Yakawanda Yakafuridzirwa Inonzi Surge Suppressor)

TVSS (Nguva Yakanyanya Kubuda Kwemhepo Kuwedzera) uye SPD (Surge Protective Device), zvose zvinoreva kushandiswa kunogona kuchengetedza pasi-gasi magetsi system kubva kune zvinokuvadza zvezvishoma, zvinokambaira kana kuputika (kusanzwisiswa kwemhepo kunotsvaga kunokonzerwa kubva kumagetsi emagetsi).

Izwi rokuti TVSS rinonyanya kufarirwa munyika yeL UL yakawanda seUnited States, Canada uye dzimwe nyika kuMiddle and South America kana kunyange Philippines. 

TVSS vs TVS, ndizvo zvakafanana here?

Cherechedza kuti haisanganisi izwi TVSS ne TVS. TVS inoshandiswa kwechirwere chenguva refu yekudzivirira. Kubva mazita avo, vanoita sechinhu chakafanana. Kunyange zvakadaro mumashamba ekudzivirirwa kwepamusoro, TVS inhengo yemagetsi (a diode) iyo inoshumira chinangwa chekuwedzera kuderedza. Icho chiri chepamusoro chepamusoro 3 chinowanzochengetedza zvikamu zvekudzivirira zvikamu (iyo imwe 2 ndiyo MOV neGDT). Kufanana neMVV neGDT, TVS inogona kushandiswa kuita TVSS uye chaizvoizvo iyo inowanzoshandiswa kugetwa neMoV neGDT. GDT inogona kutora mheni huru kwazvo uye kupera kwemazuva ano asi inopindura zvishoma chaizvo apo TVS inogona kugadzirisa zvishoma zvishoma zvishoma asi iko inopindura nenzira yakakurumidza kupfuura GDT uye MOV uye naizvozvo 3 inoumba zvakakwana kugadziriswa pakuwedzera kuderedza.

Sei vatapi veSSPD vasingacharevi zvigadzirwa zvavo seTVSS?

TVSS zvigadziri zvave zvisiri zvemhuri yakakura yezvokugadzirisa zvipfeko zvinoshandiswa zvinonzi SPDs (Surge Protective Devices). Kutanga na UL 1449 3rd Edition uye 2008 National Electrical Code, izwi rekuti "SPD" rakatsiva zviri pamutemo mazwi "TVSS" (Transient Voltage Surge Suppressor) uye "Secondary Surge Arrester". SPDs dzave kusarudzwa seRudzi rwekutanga, Rudzi rwechipiri, Rudzi rwechitatu kana Rudzi rwechina uye dzinosarudzwa zvichibva mukushandisa uye nenzvimbo kwavanofanira kushandiswa. Neshanduko dzichangoburwa mumatemu naL uye neNEC, hapasisina masangano emitemo anoshandisa izwi rekuti TVSS, seIEEE®, IEC® uye NEMA™ vave vachishandisa izwi rokuti "SPD" kwemakore mazhinji.

Iyi ichinyorwa chakanaka chekushanduka kweTVSS ku SPD. Asi nehutano, TVSS nePSD haisi kuchinjana. A TVSS yaimbozivikanwa iye zvino inonzi 2 SPD seyomuBhaibheri yekare UL, TVSS inosungirirwa pamutoro wechipinda chebasa. Asi SPD inogona kuiswa yakasvibiswa pane mutoro wechipfuva kana kuti rutivi rwenzira.

Zvisinei, kune vashandi vese, iwe unotora TVSS uye SPD sechinhu chimwechete uye unoregeredza technikisi duku duku.

TVSS inonzi Surge Suppressor kana Mutevedzeri weMupurisa nenzira yesimba rekutsvaga?

Huye, pane yakawanda simba tambo kana chinogamuchirwa neinowedzera kuchengetedza basa pamusika. Kazhinji isu tinodaidza aya mhando yezvigadzirwa surge suppressor kana surge surge uye imwe yeparamende yavo huru chiyero chejoules. Asi izvi zvinodzivirira vanodzvinyirira kana vadziviriri vevhiya muchimiro chemagetsi hachienzane neTVSS.

Iwe unogona kufunga nezveTVSS sechinhu chakakura chekudya kwemhuri uye kuwedzera kwechisimba kana kuchengetedza mhepo inongova chikamu chayo. Zvechokwadi, tinoshevedza uku kuputika kwemhepo kana chirwere chekudzivirira chinonzi 3 TVSS kana kuti-point-of-use TVSS sezvavanowanzoiswa kunze nemishonga yakachengetedzwa uye vanoshumira sekudzivirirwa kwekupedzisira kwekuchengetedzwa kwemhepo. Tora 1 kana kuti 2 TVSS inowanzoita sebhokisi kana panhizha, dzimwe nguva inogona kunge yakakura. Yaro guru parameter haisi yeJoules kukosha asi simba rekuwedzera. Nyora 1 / 2 / 3 TVSS inogadzira urongwa hwe 3 hutsika hwekuchengetedza nzira.

Ndeipi TVSS (inopfuurira kuwedzera simba rinopisa simba) inoshanda?

Izwi rinotaura nezvekuchengetedzwa kwechikwata (SPD) uye nguva inopfurikidza inokonzera kuvharidzira (TVSS) inoshandiswa kurondedzera zvigetsi zvemagetsi zvinowanzoiswa munzvimbo dzekugadzirisa masimba, maitiro ekugadzirisa maitiro, maitiro ekutaurirana, uye mamwe masimba-maitiro emabhizimusi, kuitira chinangwa chekudzivirira pamagetsi nemagetsi, kusanganisira izvo zvinokonzerwa nemheni. Scaled-down versions yezvigadziri izvi dzimwe nguva zvakagadzirirwa munzvimbo dzekugara dzinopinda magetsi emagetsi, kudzivirira midziyo mumhuri kubva kune njodzi dzakafanana.

Chii chinopera nguva inomiririra munguva inowedzera kubuda kwemhepo inokonzera kuperesa?

Kana iwe ukatarira kumusoro duramazwi, nguva inoshandiswa yekupedzisira kwenguva pfupi. Kana kana iwe ukatarisa kumusoro kune iyo Wikipedia, inokuudza iwe: Chiitiko chinononoka ipfupi-inorarama kuputika kwesimba muhurongwa hunokonzerwa nekuchinja kamwe kamwe kwenyika.

Asi pakupedza kubvisa munda, nguva shoma ndeipi? Kana kuwedzerwa kunopera, semuenzaniso, 5 seconds, inguva duku here? Kwete kwete. Mukuderedza kudengenyeka, kubuda kwenguva pfupi kunoitika mu microsecond (1 / 1000 yechipiri) kana kunyange millisecond (1 / 1000000 yechipiri). Saka iko zvino unoziva kuti kukurumidza kunogona sei kuwedzera.

Uye izvi zvinounza chimwe chidzidzo: chii chinokonzera kupera kwenguva yakareba kudarika nguva inopera uye sei kuwedzera kwechisimba (kana chipfeko chekudzivirira) kunopindura mamiriro ezvinhu aya?

Izvo zvinotyisa ndizvo zvatinodana kuti kuwedzerwa kwechinguva (TOV). Kupera kwechinguva chiduku hachisi chimwe chinhu chinogona kupindira. Kutaura zvazviri, kuwedzera kupfuvura ndeyeiye akabatwa kwenguva pfupi. Kuwedzera, zvakasimba sezvingangoita, kunongogumira kune microseconds kana milliseconds uye naizvozvo zvinongotumira simba shoma pane izvo zvinokonzera kupisa. Asi TVV, sezvo inenge yakareba kwenguva yakareba, inonyanya kukonzera kukanganisa kunokonzera kupisa zvinowanzochengetedzwa nesimbi oxide varistor (MOV) uye nokudaro MOV mukati memvura inopisa inopisa uye inoguma iwana utsi uye inobata moto.

Nokudaro, grid grid gadziriro inokosha kune chero ipi zvayo yemagetsi inosanganisira kugadzirisa zvakanyanya. Zvakanaka, iwe unganetseka: Ndinogara mune imwe nzvimbo iyo grid power is mess. Munyaya iyi, TVSS haina kushandiswa here? IEuropean kuwedzera kubvisa vatori vatipa muenzaniso wakanaka kwazvo. Panenge makore 20 akapfuura, veEuropéan kuwedzera suppressor vashandi vakatanga kutumira chikwata chekuchengetedza chikwata kuChina asi mazhinji aya emaSDD, ayo anoshanda zvakanaka kwazvo muEurope, anopiswa mumashandisirwo. Chimwe chechikonzero chikuru ndechekuti Europe ine simba rakasimba rakajeka grid uye saka vatengesi veSSPD vanotanga kuputika kwevanokonzera neUuc / MCOV (kupfuurira kwemhepo / hukuru hunopfuurira pamusoro pemhepo) kune 255V. Asi makore 20 akapfuura muChinese, grid re simba rinenge risina kukwana uye kuchinja kwevhiri kunowanzoitika. Dambudziko racho rinogadziriswa mushure mekunge vatengesi veSSPD vakagamuchira yakakwirira Uc / MCOV.

Nokudaro, chero bedzi iwe ukasarudza TVSS neyepamusoro Uc / MCOV, zvakanaka kuti uishandise TVSS muzvikwata zvinokonzereka. Semuenzaniso, patinotengesa kushandiswa kwedu kweIndia, tinowanzogamuchira Uc / MCOV pa320V kana 385V.

Mitemo yakasiyana yeTVSS (Yakawanda Yakavhara Gumbo Surge Suppressor)

Zvinorevei nechirongwa 1 / 2 / 3 TVSS? Mu UL 1449 standard, rudzi rweTVSS runonyanya kugadziriswa nenzvimbo yaro yekuisa.

Nyora 1 TVSS, kunyange zvazvo yakanyanya kuiswa pamutsara webasa remusuo, inoshandiswa chero kupi zvako mukati mekugadzirisa masimba.

Ita 2 TVSS inosungirirwa payo mutoro wechipinda chebasa (kureva, branch panel) asi rudzi rwe3 TVSS (kazhinji magetsi, zvigadziro kana pombigi) rinosungirirwa pedyo nezvidziviriro zvakachengetedzwa.

Heino mufananidzo wemhando dzeTVSS inobva panzvimbo dzekuisa.

Kubva kubva nemasurge.org

TVSS / Pasi Dhigirii Surge Suppressor

Prosurge inopa mitsara yakazara yeTVS majeri anobva ANSI / UL 1449 4th edition uye EN / IEC61643-1 / 11

Kuchengetedza Kuderedza Zvirongwa

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