Chida Chotetezera Chipangizo (AC ndi DC POWER, DATALINE, COAXIAL, GAS TUBES)

Chitetezo cha Surge Protection (kapena surge suppressor kapena surge diverter) ndichida kapena chida chopangira zida zamagetsi pamagetsi amagetsi. Wotetezera woyeserera amayesetsa kuchepetsa mphamvu yamagetsi yoperekedwa pazida zamagetsi mwa kutseka kapena kufupikitsa kuti athetse zolowera zilizonse zosafunikira pamwambapa. Nkhaniyi imafotokoza makamaka za mafotokozedwe ndi zinthu zina zogwirizana ndi mtundu wa mtetezi womwe umapatutsa (zazifupi) zamagetsi pansi; komabe, pali kufotokozedwa kwa njira zina.

Bokosi lamagetsi lokhala ndi chitetezo chokhazikika komanso malo ogulitsira angapo
Mawu akuti chipangizo choteteza chitetezo (SPD) ndi chosakhalitsa cha voltage surge suppressor (TVSS) chimagwiritsidwa ntchito kufotokozera zida zamagetsi zomwe zimayikidwa m'magawo ogawa magetsi, kayendetsedwe ka kayendetsedwe kake, njira zolumikizirana, ndi mafakitale ena olemera, kuti ateteze ku kukwera kwamagetsi ndi ma spikes, kuphatikiza zomwe zimayambitsidwa ndi mphezi. Mitundu yocheperako yazida izi nthawi zina imayikidwa muzipinda zolowera zamagetsi, kuti ziteteze zida zapakhomo pazowopsa zomwezo.

AC Surge Protection Chipangizo Mwachidule

Chidule cha Kutha Kwakale Kwakanthawi

Ogwiritsa ntchito zida zamagetsi ndi mafoni ndi makina osinthira deta akuyenera kuthana ndi vuto losunga zida izi ngakhale zitakhala zazing'onoting'ono zomwe zimayambitsidwa ndi mphezi. Pali zifukwa zingapo izi (1) kuchuluka kophatikizika kwa zida zamagetsi kumapangitsa kuti zida zizikhala zowopsa, (2) kusokonezedwa kwa ntchito sikuvomerezeka (3) maukonde opatsirana deta amakhudza madera akulu ndipo amakumana ndi zovuta zambiri.

Kuchulukanso kwakanthawi komwe kumayambitsa zifukwa zazikulu zitatu:

  • Mphezi
  • Makampani opanga ndikusintha
  • Kutulutsa kwa Electrostatic (ESD)Chiwonetsero cha ACI

Mphezi

Mphezi, yomwe idasanthulidwa kuyambira pomwe kafukufuku woyamba wa a Benjamin Franklin ku 1749, zakhala zoopsa kwa gulu lathu lamagetsi kwambiri.

Kupanga mphezi

Kuwala kwa mphezi kumachitika pakati pa zigawo ziwiri zotsutsana, makamaka pakati pa mitambo iwiri yamkuntho kapena pakati pa mtambo umodzi ndi nthaka.

Kunyezimira kumatha kuyenda mailo angapo, kupita pansi molumpha motsatizana: mtsogoleriyo amapanga njira yolemekezeka kwambiri. Ikafika pansi, kunyezimira kwenikweni kapena kubwerera kumachitika. Pakadali pano masauzande a Amperes adzayenda kuchokera pansi kupita kumtambo kapena mosinthanitsa kudzera pa njira ya ionized.

Mphezi Yowongoka

Pakutuluka, pali kutulutsa kwamphamvu komwe kumayambira pa 1,000 mpaka 200,000 Amperes pachimake, ndikukhala ndi nthawi yokwera pafupifupi ma microsecond ochepa. Izi zimapangitsa kuti magetsi ndi zamagetsi zisawonongeke chifukwa zimakhazikika kwambiri.
Chitetezo chabwino kwambiri akadali ndodo yachikale ya mphezi kapena Lightning Protection System (LPS), yokonzedwa kuti igwire zotulutsira pakadali pano ndikuzipititsa kumalo enaake.

Zotsatira zosadziwika

Pali mitundu itatu yazotsatira za mphezi zosalunjika:

Zovuta pamzere wapamwamba

Mizere yotereyi imadziwika bwino ndipo imawombedwa mwachindunji ndi mphezi, zomwe zimawononga pang'ono pang'ono zingwe, kenako zimayambitsa mafunde ambiri omwe amayenda mwachilengedwe pama conductor kupita kuzida zolumikizidwa ndi mzere. Kukula kwawonongeka kumadalira mtunda pakati pa kunyanyala ndi zida.

Kukwera kwa kuthekera kwa nthaka

Kutuluka kwa mphezi pansi kumapangitsa kuti kuwonjezeka kwapadziko lapansi kukhale kosiyanasiyana malinga ndi kulimba kwake komanso kutayika kwa dziko lapansi. Pakukhazikitsa komwe kumatha kulumikizidwa ndi zifukwa zingapo (mwachitsanzo kulumikizana pakati pa nyumba), kunyanyala kumatha kuyambitsa kusiyana kwakukulu kwambiri ndipo zida zolumikizidwa ndi ma netiweki omwe akhudzidwa zidzawonongeka kapena kusokonekera kwambiri.

Ma radiation a magetsi

Kuwala kungathenso kuwonedwa ngati tinyanga tating'onoting'ono tating'ono tonyamula chikoka champhamvu cha magawo khumi a kilo-amperes, kutulutsa magawo amagetsi ambiri (ma kV angapo / mita kupitirira 1km). Minda imeneyi imapangitsa kuti pakhale ma voltages amphamvu komanso mafunde m'mizere pafupi kapena pazida. Miyezo imadalira mtunda kuchokera pa kung'anima ndi momwe ulalowu ulili.

Zowonjezera Zamakampani
Kuwonjezeka kwa mafakitale kumakhudza zochitika zomwe zimachitika chifukwa chotsegula kapena kuzimitsa zamagetsi.
Kuwonjezeka kwama Industrial kumayambitsidwa ndi:

  • Kuyambitsa ma mota kapena ma thiransifoma
  • Oyambitsa a Neon ndi sodium
  • Kusintha maukonde amagetsi
  • Sinthani "zophulika" munthawi yoyenda
  • Kugwiritsa ntchito mafyuzi ndi ma breakers oyenda
  • Kugwera mizere yamagetsi
  • Osauka kapena osasunthika olumikizana

Zodabwitsazi zimapanga kutalikirana kwa ma kV angapo pakukwera kwamphamvu kwa ma microsecond, zida zosokoneza muma netiweki omwe kusokonekera kulumikizidwa.

Kupitilira kwa Electrostatic

Mwa zamagetsi, munthu amakhala ndi ma capacitance kuyambira 100 mpaka 300 picofarads ndipo amatha kutenga ndalama zokwana 15kV poyenda pamphasa, kenako amakhudza chinthu china choyendetsa ndikutulutsidwa mu ma microsecond ochepa, okhala ndi Amperes khumi . Maseketi onse ophatikizidwa (CMOS, ndi zina zambiri) ali pachiwopsezo chotere chisokonezo, chomwe nthawi zambiri chimachotsedwa ndi kutchinjiriza ndi kukhazikitsa.

Zotsatira Zakuwonongeka

Kuchulukanso kumakhala ndi mitundu yambiri yazotsatira pazida zamagetsi kuti zichepetse kufunika:

Chiwonongeko:

  • Kutha kwa voliyumu yolumikizana ya semiconductor
  • Kuwonongeka kwa kulumikizana kwa zigawo zikuluzikulu
  • Kuwonongeka kwa mayendedwe a ma PCB kapena olumikizana nawo
  • Kuwonongeka kwa mayesero / thyristors ndi dV / dt.

Kusokoneza ntchito:

  • Ntchito yosasintha ya latches, thyristors, ndi triacs
  • Kufooka kwa kukumbukira
  • Zolakwa za pulogalamu kapena ngozi
  • Zolakwika ndi kufalitsa

Kukalamba msanga:

Zigawo zomwe zimawonetsedwa pazowonjezera zimakhala ndi moyo wafupi.

Zida zoteteza Chitetezo

The Surge Protection Device (SPD) ndi njira yodziwikiratu komanso yothandiza kuthana ndi vuto lamagetsi. Pazotsatira zazikulu, komabe, iyenera kusankhidwa malinga ndi chiwopsezo cha kugwiritsa ntchito ndikuyika malinga ndi malamulo a maluso.

DC Power Surge Protection Chipangizo Mwachidule

Zoganizira Zakutsogolo ndi Chitetezo

Utility-Interactive or Grid-Tie Solar Photovoltaic (PV) Systems ndi mapulojekiti ovuta kwambiri komanso okwera mtengo. Nthawi zambiri amafuna kuti Solar PV System igwire ntchito kwazaka zambiri isanabwezere ndalama zomwe mukufuna.
Opanga ambiri amatsimikizira kuti moyo wawo umakhala wopitilira zaka 20 pomwe wopanga zida zambiri amakhala ndi zaka 5-10 zokha. Ndalama zonse ndikubwezera ndalama zimayesedwa kutengera nthawi izi. Komabe, machitidwe ambiri a PV sakukula msinkhu chifukwa cha mawonekedwe owonekera a mapulogalamuwa ndi kulumikizana kwake kubwerera ku gridi yothandizira ya AC. Mawonekedwe a dzuwa a PV, ndi chimango chake chachitsulo ndikukhala panja kapena padenga, amakhala ngati ndodo yabwino kwambiri ya mphezi. Pachifukwa ichi, ndikwanzeru kuyika ndalama mu Surge Protective Chipangizo kapena SPD kuti muchepetse ziwopsezo zomwe zitha kuchititsa kuti machitidwe azikhala moyo. Mtengo wokhala ndi chitetezo chokwanira ndichoposa 1% yazogwiritsidwa ntchito zonse. Onetsetsani kuti mukugwiritsa ntchito zinthu zomwe zili UL1449 4th Edition ndipo ndi Type 1 Component Assemblies (1CA) kuti muwonetsetse kuti makina anu ali ndi chitetezo chokwanira pamsika.

Kuti tiwunikire zowopsa zonse zakukhazikitsako, tiyenera kuyesa kuwunika.

  • Ngozi Yogwira Ntchito Yotsika - Madera omwe ali ndi mphezi yayikulu komanso magetsi osakhazikika amakhala pachiwopsezo chachikulu.
  • Ngozi Yolumikizana Ndi Mphamvu - Kukula kwakukulu kwa mawonekedwe a dzuwa a PV, kumawonekera kwambiri kumayendedwe olunjika ndi / kapena oyambitsa mphezi.
  • Chiwopsezo Chakuwonongeka Kwantchito - Gulu lothandizira la AC ndi lomwe lingayambitse kusintha kwakanthawi ndi / kapena kuyatsa mphezi.
  • Kuwopsa Kwawo - Zotsatira zakusatsika kwadongosolo sizongokhala pakukhazikitsa zida zokha. Zowonjezera zina zitha kubwera chifukwa cha otayika, ogwira ntchito osagwira ntchito, nthawi yowonjezera, kusakhutira ndi makasitomala / kasamalidwe, zolipitsa katundu mwachangu komanso kufulumizitsa mtengo wotumizira.

Limbikitsani Zochita

1) Earthing System

Ma Surge Protectors amathawira pansi panthaka. Njira yotsika yozungulira, momwemonso, ndiyofunikira kuti oteteza mafunde azigwira ntchito moyenera. Makina onse amagetsi, njira zolumikizirana, zinthu zachitsulo zokhazikika komanso zosazunguliridwa zimafunikira kuti zikhale zolimba kuti pulogalamu yoteteza igwire bwino ntchito.

2) Kulumikizana Mobisa kuchokera Kunja kwa PV Array kupita ku Zida Zamagetsi Zamagetsi

Ngati kuli kotheka, kulumikizana pakati pa Solar PV Array yakunja ndi zida zowongolera mphamvu zamkati ziyenera kukhala mobisa kapena kutetezedwa ndi magetsi kuti muchepetse kuwombana ndi mphenzi komanso / kapena kulumikizana.

3) Njira Yogwirizira Chitetezo

Mphamvu zonse zomwe zilipo komanso maukonde olumikizirana ayenera kuthandizidwa ndi chitetezo chowonjezera kuti athetse zovuta za PV. Izi ziphatikiza magetsi oyambira a AC, Inverter AC yotulutsa, Inverter DC yolowetsa, chophatikizira chingwe cha PV ndi mizere ina yokhudzana ndi data / ma siginolo monga Gigabit Ethernet, RS-485, 4-20mA loop yapano, PT-100, RTD, ndi ma modemu am'manja.

Chida Chachidziwitso Chachidziwitso cha Data Line

Chidule cha Deta

Zipangizo zama telecommunication ndi data (PBX, modems, terminals terminals, sensors, etc…) zikuwopsezedwa kwambiri ndi magesi omwe amachititsa magetsi. Amakhala omvera kwambiri, ovuta komanso amakhala ndi chiopsezo chowonjezeka chifukwa cha kulumikizana kwawo kotheka pamanetiweki angapo. Zipangizozi ndizofunikira kwambiri pakampani kulumikizana ndi kukonza zambiri. Mwakutero, ndikwanzeru kuwatsimikizira kuti atetezedwa kuzinthu zomwe zingakhale zodula komanso zosokoneza. Wotetezera mzere wapa data woyikiratu mu mzere, molunjika patsogolo pa chida chanzeru adzawonjezera moyo wawo wothandiza ndikupitiliza kupitilirabe kwa chidziwitso chanu.

Ukadaulo wa Akutetezani

Onse oteteza ma telefoni a LSP ndi ma data amatengera njira yodalirika yophatikiza ma tub a Discharge Tubes (GDTs) komanso kuyankha mwachangu kwa Silicon Avalanche Diode (SADs). Dera lamtunduwu limapereka,

  • 5kA Kutulutsa Kwadzina Pakadali pano (maulendo 15 osawonongeka pa IEC 61643)
  • Pasanathe nthawi 1 yankho la nanosecond
  • Njira yolephera yotchinga
  • Kapangidwe kakang'ono kochepetsa kuchepa kumachepetsa kutayika kwa siginecha

Magawo posankha Mtetezi Wotuluka

Kuti musankhe wotetezera woyenera kuti mukhazikitse, kumbukirani izi:

  • Mwadzina ndi Zolemba Line Voltages
  • Zolemba malire Line Current
  • Chiwerengero cha Maina
  • Kutumiza Kwadongosolo
  • Mtundu wa cholumikizira (Wononga Pokwelera, RJ, ATT110, QC66)
  • Kuuluka (Din Rail, Pamwamba pa Phiri)

unsembe

Kuti mukhale wogwira mtima, wotetezera akuyenera kukhazikitsidwa malinga ndi mfundo zotsatirazi.

Malo oyenera kuteteza omwe akuteteza komanso zida zotetezedwa ayenera kulumikizidwa.
Chitetezo chimayikidwa pakhomo lolowera m'malo oyikiramo kuti musinthe zomwe zingachitike msanga posachedwa.
Wotetezera akuyenera kuyikidwa pafupi kwambiri, osakwana 90 mapazi kapena 30 mita) pazida zotetezedwa. Ngati lamuloli silingatsatidwe, otetezera achiwiri akuyenera kuyikidwa pafupi ndi zida.
Woyendetsa pansi (pakati pa nthaka yotetezera ndi yoyika yolumikizira dera) ayenera kukhala waufupi momwe angathere (osakwana 1.5 mapazi kapena 0.50 mita) ndikukhala ndi gawo lopingasa osachepera 2.5 mm lalikulu.
Kukana kwapadziko lapansi kuyenera kutsatira nambala yamagetsi yakomweko. Palibe malo apadera ofunikira.
Zingwe zotetezedwa komanso zosatetezedwa ziyenera kusungidwa bwino kuti muchepetse kulumikizana.

NJIRA

Miyezo Yoyeserera ndikukhazikitsa kwa omwe akuteteza kulumikizana pamzere akuyenera kutsatira izi:

UL497B: Oteteza Ma Kulumikizana Kwama data ndi Ma Alarm Fire Alarm Circuits
IEC 61643-21: Kuyesedwa kwa Surge Protectors for Communication Lines
IEC 61643-22; Kusankha / Kukhazikitsa kwa Surge Protectors a Communication Lines
NF EN 61643-21: Kuyesedwa kwa Surge Protectors for Communication Lines
Wotsogolera UTE C15-443: Kusankha / Kukhazikitsa kwa Surge Protectors

Zinthu Zapadera: Makina Otetezera Mphezi

Ngati dongosolo lomwe liyenera kutetezedwa lili ndi LPS (Lightning Protection System), oteteza ma telecom kapena ma data omwe amaikidwa pakhomo lolowera nyumba akuyenera kuyesedwa ndi mawonekedwe amagetsi 10 / 350us mawonekedwe osachepera kuchuluka kwaposachedwa kwa 2.5kA (kuyesa gulu la D1 IEC-61643-21).

Coaxial Surge Protection Chipangizo Mwachidule

Chitetezo Cha Zida Zoyankhulana pa Wailesi

Zipangizo zoyankhulirana pawailesi zomwe zimagwiritsidwa ntchito mosasunthika, zosamukasamuka kapena zoyendetsa mafoni zimakhala pachiwopsezo cha kuwomba kwa mphezi chifukwa chogwiritsa ntchito m'malo owonekera. Zomwe zimasokonekera kwambiri pakapitilira ntchito zimachitika chifukwa chakumapeto kwa mphezi kuchokera kumiyala yolunjika kupita ku mlongoti wa antenna, makina oyandikana ndi nthaka kapena kuyambitsa kulumikizana pakati pa madera awiriwa.
Zipangizo zapa wailesi zomwe zimagwiritsidwa ntchito muma CDMA, GSM / UMTS, WiMAX kapena TETRA base station, ziyenera kulingalira za chiopsezo ichi kuti zitsimikizire ntchito zosadodometsedwa. LSP imapereka matekinoloje atatu apadera otetezera ma Radio Frequency (RF) olumikizirana omwe ali oyenererana ndi zofunikira zosiyanasiyana pakachitidwe kalikonse.

RF Akukonda Protection Technology
Chitetezo cha Gesi Tube DC Pass
P8AX mndandanda

Chitetezo cha Gasi Kutulutsa (GDT) DC Pass Chitetezo ndiye chida chokhacho chotetezera chomwe chimagwiritsidwa ntchito pamagetsi othamanga kwambiri (mpaka 6 GHz) chifukwa chotsika kwambiri. Mu GDT yozikirira yoteteza koaxial surge, GDT imagwirizanitsidwa chimodzimodzi pakati pa wochititsa pakati ndi chishango chakunja. Chipangizocho chimagwira ntchito zikafika pamagetsi ake amagetsi, panthawi yovunda kwambiri ndipo mzerewo umafupikitsidwa (arc voltage) ndikupatutsidwa kuzida zovuta. Mphamvu yamagetsi yamphamvu imadalira kukwera kutsogolo kwa chiwombankhanga. Kutalika kwa dV / dt kwawowonjezera mphamvu, kumawonjezera mphamvu yamagetsi yodzitchinjiriza. Vivoltageyo ikadzatha, chubu yotulutsa mpweya imabwereranso mwakale, yotetezedwa kwambiri ndipo ili wokonzeka kuyambiranso.
GDT imasungidwa munyumba yopangidwa mwapadera yomwe imathandizira kupititsa patsogolo pazochitika zazikuluzikulu ndipo imachotsedwanso mosavuta ngati kukonza kukufunika chifukwa chakutha kwa moyo. P8AX Series itha kugwiritsidwa ntchito pamizere yama coaxial yoyenda ndi ma voltages a DC mpaka - / + 48V DC.

Chitetezo Chophatikiza
DC Pass - CXF60 mndandanda
DC Yoletsedwa - Mndandanda wa CNP-DCB

Chitetezo cha Hybrid DC Pass ndi mgwirizano wazinthu zosefera komanso chubu yolemera yotulutsa mpweya (GDT). Kapangidwe kameneka kamapereka zotsalira zotsika kwambiri kudzera pamagetsi pamavuto otsika pafupipafupi chifukwa champhamvu zamagetsi ndipo zimaperekabe kutulutsa kwamphamvu kwambiri pakali pano.

Kutetezedwa Kwama Quarter Wave DC
PRC mndandanda

Chitetezo cha Quarter Wave DC ndichotetezera chofulumira cha band. Ilibe zida zogwirira ntchito. M'malo mwake thupi ndi chiputu chofananira zimayang'aniridwa ndi kotala limodzi la kutalika kwa mafunde omwe amafunidwa. Izi zimalola kokha ma frequency band kuti adutse mu unit. Popeza mphezi imagwira ntchito pang'onopang'ono, kuyambira mazana ochepa kHz mpaka MHz ochepa, iyo ndi mafupipafupi ena onse amafupikitsidwa mpaka pansi. Tekinoloje ya PRC itha kusankhidwa kukhala gulu lochepa kwambiri kapena gulu lonse kutengera momwe mukugwiritsira ntchito. Chokhacho chokhacho chomwe chikulephereka pakadali pano ndi mtundu wolumikizira. Nthawi zambiri, cholumikizira cha 7/16 Din chimatha kuthana ndi 100kA 8 / 20us pomwe cholumikizira chamtundu wa N chimatha kufikira 50kA 8 / 20us.

Coaxial-Surge-Protection-Mwachidule

NJIRA

UL497E - Otetezera a Antenna Otsogolera Otsogolera

Magawo posankha Coaxial Surge Protector

Zomwe zimafunikira kuti musankhe bwino wotetezera pulogalamu yanu ndi izi:

  • pafupipafupi osiyanasiyana
  • Mzere Voltage
  • cholumikizira Type
  • Mtundu wa jenda
  • ogwiritsa
  • Technology

unsembe

Kukhazikitsa koyenera kwa mtetezi wa coaxial makamaka kumadalira kulumikizidwa kwake ndi njira yotsika yotsika. Malamulo otsatirawa akuyenera kutsatiridwa:

  • Equipotential Grounding System: Ma conductor onse opangira unsembe ayenera kulumikizana wina ndi mnzake ndikulumikizananso ndi nthaka.
  • Kulumikiza Kotsika Kwambiri: Woteteza wa coaxial akuyenera kukhala ndi kulumikizana kotsika ndi Ground System.

Kutulutsa kwa Gasi Mwachidule

Chitetezo cha Zigawo za PC Board Level

Zipangizo zamakono zamagetsi zamagetsi zomwe zili ndi microprocessor masiku ano zimakhala pachiwopsezo chazovuta zamagetsi zamagetsi komanso magetsi osinthira magetsi chifukwa azindikira kwambiri, komanso zovuta kuziteteza chifukwa cha kuchuluka kwa chip, magwiridwe antchito ndi kulumikizana pamaneti osiyanasiyana. Zipangizozi ndizofunikira pakampani kulumikizana ndi kukonza zambiri ndipo nthawi zambiri zimatha kukhala ndi zotsatirapo; Chifukwa chake ndi kwanzeru kuwonetsetsa kuti asachite nawo zinthu zomwe zitha kukhala zotsika mtengo komanso zosokoneza. Chubu Chotulutsa Gasi kapena GDT chitha kugwiritsidwa ntchito ngati chinthu chodziyimira pawokha kapena chophatikizidwa ndi zinthu zina kuti apange dera lotetezera anthu ambiri - chubu la gasi limakhala gawo lamagetsi lalikulu. Ma GDT amagwiritsidwa ntchito poteteza kulumikizana ndi magwiritsidwe antchito amagetsi a DC chifukwa chotsika kwambiri. Komabe, amapereka maubwino osangalatsa pamzere wamagetsi wa AC kuphatikiza palibe kutayikira pakali pano, kugwiritsa ntchito mphamvu zambiri komanso kutha kwabwino kwa moyo.

GASI YOPHUNZITSA TUBE TECHNOLOGY

Tepu yotulutsira gasi imatha kuonedwa ngati mtundu wosinthira mwachangu wokhala ndi zinthu zomwe zimasinthasintha mwachangu, zikawonongeka, kuyambira kotseguka mpaka dera lalifupi (voliyumu yamagetsi pafupifupi 20V). Pali madera anayi omwe amagwirira ntchito ngati chubu lotulutsa mpweya:
alireza

GDT imatha kuwonedwa ngati chosinthira mwachangu kwambiri choyenera kuchita zinthu zomwe zimasintha mwachangu pakawonongeka ndikusintha kuchoka pa dera lotseguka kupita kudera lalifupi. Zotsatira zake ndi magetsi a arc pafupifupi 20V DC. Pali magawo anayi a ntchito chubu chisanasinthe.

  • Malo osagwira ntchito: Omwe amadziwika ndi kukaniza kosakanikirana kosatha.
  • Kuwala: Pakuwonongeka, mayendedwe akuwonjezeka modzidzimutsa. Ngati pompano chatsanulidwa ndi chubu chotulutsa gasi ndi ochepera pafupifupi 0.5A (mtengo wovuta womwe umasiyana ndi chigawo chimodzi), ma voliyumu otsika kumapeto azikhala mu 80-100V.
  • Ulamuliro wa Arc: Pomwe zikuchulukirachulukira, chubu yotulutsa mpweya imasunthira kuchoka pamagetsi otsika kupita ku arc voltage (20V). Ndi malo awa omwe chubu yotulutsira mpweya imagwira ntchito kwambiri chifukwa zotulutsira pano zitha kufikira ma amperes masauzande angapo popanda ma arc voltage pama terminals omwe akuwonjezeka.
  • Kutha: Pakukondera kwamagetsi kofanana kofanana ndi kotsika kocheperako, chubu chotulutsa mpweya chimakwirira zinthu zake zoyambirira zotetezera.

gdt_ndimeKusintha kwa 3-Electrode

Kuteteza zingwe zama waya awiri (mwachitsanzo, patelefoni) yokhala ndi machubu awiri otulutsa ma elekitirodi awiri atha kubweretsa vuto ili:
Ngati mzere wotetezedwa umakhala ndi chiwongola dzanja chofananira, kufalikira kwa mafunde ochulukirapo (+/- 20%), imodzi mwaziphuphu zotulutsira mpweya zimatuluka kwakanthawi kochepa kwambiri kuposa zinazo (makamaka ma microsecond ochepa), waya yomwe ili ndi cheza chotsika ndiyomwe imakhazikika (kunyalanyaza ma voliyumu), ndikusinthira kupumira kwa njira wamba kukhala njira yosiyanitsira mitundu. Izi ndizowopsa pazida zotetezedwa. Chiwopsezo chimatha gasi wachiwiri akamatulutsa chubu atadutsa (ma microseconds angapo pambuyo pake).
Ma geometry a 3-electrode amathetsa vutoli. Kuthetheka kwa mtengo umodzi kumayambitsa kuwonongeka kwa chipangizocho nthawi yomweyo (ma nanosecond ochepa) chifukwa pali chipinda chimodzi chokha chodzaza mpweya chokhala ndi ma elekitirodi onse okhudzidwa.

Mapeto a Moyo

Machubu otulutsira mpweya adapangidwa kuti athane ndi zikhumbo zambiri osawonongeka kapena kutayika kwa zoyambira (zoyeserera zomwe zimakakamizidwa ndimakono 10 x 5kA pazolowera zilizonse).

Kumbali ina, kupitilira kwapamwamba kwambiri, mwachitsanzo ma 10A masekondi 15, ndikufanizira kutuluka kwa chingwe chamagetsi cha AC kulumikizana ndi telefoni ndipo ichotsa GDT nthawi yomweyo.

Ngati mukufuna kulephera moyo, mwachitsanzo, dera lalifupi lomwe linganene cholakwika kwa wogwiritsa ntchito kumapeto kwake pomwe mzere wapezeka wapezeka, chubu chotulutsa mpweya wokhala ndi cholephera (gawo lalifupi) liyenera kusankhidwa .

Kusankha Chubu Chotulutsa Gasi

  • Zomwe zimafunikira kuti musankhe bwino wotetezera pulogalamu yanu ndi izi:
    DC kutulutsa mphamvu zamagetsi (Volts)
  • Kutengeka ndi mphamvu pamphamvu yamagetsi (Volts)
  • Zimatulutsa mphamvu zamakono (kA)
  • Kutchinjiriza kukana (Gohms)
  • Mphamvu (pF)
  • Kukhazikitsa (Pamwamba pa Phiri, Kutsogolera Kwambiri, Kukutsogolera Kwachikhalidwe, Chofukizira)
  • Kupaka (Tape & Reel, paketi ya Ammo)

Mtundu wa DC umatulutsa mphamvu yamagetsi yomwe ilipo:

  • Osachepera 75V
  • Avereji ya 230V
  • Mkulu Voteji 500V
  • Mphamvu Yapamwamba Kwambiri 1000 mpaka 3000V

* Kulekerera pamavuto amagetsi nthawi zambiri +/- 20%

tchati
Kutaya Kwadzidzidzi

Izi zimadalira katundu wa gasi, voliyumu ndi zinthu zamaelekitala kuphatikiza chithandizo chake. Ichi ndiye chofunikira chachikulu cha GDT komanso yomwe imasiyanitsa ndi chida china chotetezera, mwachitsanzo Varistors, Zener Diode, ndi zina. Mtengo wake ndi 5 mpaka 20kA wokhala ndi chikoka cha 8 / 20us pazinthu zofunikira. Umenewu ndiye mtengo womwe chubu yotulutsira mpweya imatha kupilira mobwerezabwereza (zikhumbo zosachepera 10) popanda kuwonongeka kapena kusintha komwe kumafunikira.

Zolimbikitsa Sparkover Voteji

Kuthetheka kwa magetsi pamaso patsogolo (dV / dt = 1kV / us); chidwi chomwe chimafalikira pamphamvu yamagetsi chikuwonjezeka ndikuwonjezeka kwa dV / dt.

Kutchinjiriza Kukaniza ndi Capacitance

Makhalidwewa amachititsa kuti chubu yotulutsira gasi ikhale yosaoneka nthawi zonse pakagwiridwe ntchito. Kukaniza kutchinjiriza ndikokwera kwambiri (> 10 Gohm) pomwe capacitance ndiyotsika kwambiri (<1 pF).

NJIRA

Miyezo Yoyeserera ndikukhazikitsa kwa omwe akuteteza kulumikizana ndi mzere akuyenera kutsatira izi:

  • UL497B: Oteteza Ma Kulumikizana Kwama data ndi Ma Alarm Fire Alarm Circuits

unsembe

Kuti mukhale wogwira mtima, wotetezera akuyenera kukhazikitsidwa malinga ndi mfundo zotsatirazi.

  • Malo oyenera kuteteza omwe akuteteza komanso zida zotetezedwa ayenera kulumikizidwa.
  • Chitetezo chimayikidwa pakhomo lolowera m'malo oyikiramo kuti musinthe zomwe zingachitike msanga posachedwa.
  • Wotetezera akuyenera kuyikidwa pafupi kwambiri, osakwana 90 mapazi kapena 30 mita) pazida zotetezedwa. Ngati lamuloli silingatsatire, otetezera achiwiri akuyenera kuyikidwa pafupi ndi zida
  • Woyendetsa pansi (pakati pa nthaka yoteteza ndi yoyimilira yolumikizira) ayenera kukhala waufupi momwe angathere (osakwana 1.5 mapazi kapena 0.50 mita) ndikukhala ndi gawo lowoloka pafupifupi 2.5 mm ma squared.
  • Kukana kwapadziko lapansi kuyenera kutsatira nambala yamagetsi yakomweko. Palibe malo apadera ofunikira.
  • Zingwe zotetezedwa komanso zosatetezedwa ziyenera kusungidwa bwino kuti muchepetse kulumikizana.

kukonza

Machubu otulutsira mpweya wa LSP samafuna kukonza kapena kuwachotsa m'malo abwinobwino. Amapangidwa kuti azitha kupirira mafunde obwereza mobwerezabwereza popanda kuwonongeka.
Komabe, ndikwanzeru kukonzekera zoopsa kwambiri ndipo, pachifukwa ichi; LSP yakonza kuti zisinthe zida zachitetezo ngati zingatheke. Udindo wa wotetezera mzere wanu wazidziwitso ungayesedwe ndi mtundu wa LSP SPT1003. Chipangizochi chidapangidwa kuti chikayesetse kuyatsa kwa DC pamagetsi, ma voltages opitilira ndi kupitiriza kwa mzere (mwakufuna) kwa woteteza. SPT1003 ndi yaying'ono, kukankha batani unit ndikuwonetsera kwa digito. Mtundu wamagetsi woyesa ndi 0 mpaka 999 volts. Imatha kuyesa magawo amtundu uliwonse monga ma GDT, ma diode, ma MOV kapena zida zoyimira zokha zopangira ntchito za AC kapena DC.

ZOCHITIKA ZAPADERA: ZINTHU ZOTSATIRA MALAWI

Ngati dongosolo lomwe liyenera kutetezedwa lili ndi LPS (Lightning Protection System), oteteza ma telecom, mizere ya data kapena mizere yamagetsi ya AC yomwe imayikidwa pakhomo lolowera nyumba iyenera kuyesedwa ndi mphezi mwachindunji 10 / 350us waveform ndimayendedwe ochepera a 2.5kA (D1 gulu mayeso IEC-61643-21).