Kodi Zoteteza Kuphulika kwa Moto Zimateteza Moto?

Ndinatsala pang'ono kutaya chipinda cha seva chifukwa cha chingwe chimodzi choipa. Fungo la pulasitiki yoyaka nthawi ya 2 koloko m'mawa limandidzutsabe.

Inde, zoteteza mafunde zimatha kuyimitsa moto wambiri wamagetsi. Zimatseka mafunde amagetsi omwe amasungunula mawaya ndikuyatsa pulasitiki yapafupi. Sizangwiro, koma zimachepetsa chiopsezo cha moto ndi 70% m'mayeso anga a fakitale.

Pitirizani kuwerenga ndipo ndikukuwonetsani momwe amagwirira ntchito, komwe amalephera, komanso zomwe ndimachita kuti makasitomala anga akhale otetezeka.

 Kodi Zipangizo Zoteteza Kuphulika kwa Moto Zimagwira Ntchito Bwanji? Kodi Zingathedi Kuletsa Moto?

Ndimayendetsa fakitale yoteteza mafunde ku Wenzhou. Timayesa tsiku lililonse. Chipangizo chabwino chimadula mphamvu ya 6 000 V kufika pa 330 V mu nanosecond imodzi yokha. Chidutswa chofulumira chimenecho chimaletsa mawaya kutentha kwambiri ndikuyatsa moto.

Mkati mwa Metal-Oxide Varistor (MOV)

MOV ndi diski yaying'ono ya ceramic. Imakhala pakati pa waya wamoyo ndi waya wa neutral. Pa 230 V yachizolowezi sichichita chilichonse. Pamene spike yafika, kukana kwa MOV kumatsika pafupifupi zero. Mphamvu yowonjezera imalowa mu waya wa neutral ndipo imachoka pa katundu. Kutentha kumakhala kochepa ndipo MOV imaziziranso.

Mayeso enieni a Moto mu Lab Yanga

Tinatenga ma power strips awiri. Chimodzi chinali ndi MOV, china chinalibe. Tinabaya jekeseni ya 4 000 V spike nthawi 100. Chingwe chopanda MOV chinafika 180 °C ndipo pulasitiki inayamba kusungunuka. Chingwe chokhala ndi MOV chinakhalabe pa 35 °C. Chithunzi chili pansipa chikuwonetsa chingwe chosungunuka. Palibe lawi lomwe linawonekera, koma chiopsezo chinali chodziwikiratu.

Chifukwa Chake Moto Wina Umachitikabe

MOV ikhoza kulephera kugwira ntchito mwachangu. Ngati fuse ya kutentha ikusowa, MOV imapitirizabe kutentha. Timawonjezera fuse yachiwiri ndi nyumba yosapsa ndi moto. Ichi ndichifukwa chake fakitale yathu ya Wenzhou imagwiritsa ntchito pulasitiki ya UL 94 V-0. Imayimitsa lawi mkati mwa masekondi 10.

Kodi pali mgwirizano wotani pakati pa magetsi ndi moto?

Ndaona dzenje la 1 cm litapsa mu PCB pambuyo pa kukwera koipa kamodzi. Chopingacho chinapeza kachidutswa kofooka ndipo chinasanduka malo otentha a 300 °C. Malo amenewo anaunikira chikwama cha pulasitiki.

Kumene Kutentha Kumachokera

Waya ndi choletsa. Mphamvu yamagetsi ikawirikiza kawiri, mphamvu imakwera kanayi. Kachidutswa kakang'ono pa PCB yotsika mtengo kangagwire ntchito ngati fuse. Kamawala mofiira ndikuyatsa bolodi. Tebulo likuwonetsa masamu.

 Nkhani Yeniyeni Yochokera kwa Kasitomala Wachijeremani

Wopanga mapanelo ku Munich adagula zingwe zotsika mtengo kuchokera kwa wogulitsa wosadziwika. Mphepo yamkuntho yachilimwe idagunda. Kuphulika kwa madzi kunapeza chizindikiro cha 0.5 mm pa bolodi lolumikizirana. Bolodi linayaka ndipo gulu lonse linayenera kusinthidwa. Motowo unawawonongera 80,000 €. Pambuyo pake amagula zingwe zokhala ndi UL 1449 4th edition yokha. Tsopano timatumiza zingwe 2,000 kwa iwo mwezi uliwonse.

Chifukwa Chake Moto Umayamba Nthawi Zambiri Mkati mwa Chipangizocho

Chingwe chakunja chikuwoneka bwino. Kuwonongeka kwabisika pa PCB. Ichi ndichifukwa chake ndikupempha makasitomala anga kuti ayesere magetsi olowa. Timawapatsa lipoti laulere loyesa ndi gulu lililonse. Ngati magetsi olowa ali pamwamba pa 400 V, timakana gululo.

Kodi Zipangizo Zoteteza Kuphulika kwa Moto Zimathandiza Bwanji Kupewa Moto?

Ndimawonjezera zigawo zitatu muzinthu zanga: MOV yodula, fyuzi yodula, ndi V-0 yosungira. Zitatuzi zimachepetsa chiopsezo cha moto ndi 70% mu kafukufuku wathu wa 2023 m'ma racks 1,200 ku Italy.

Gawo 1 - Dulani Mphepete

Timasankha ma disc a MOV a 14 mm diameter. Amatenga 6 500 A pa shoti imodzi. Disc yayikulu imafalitsa kutentha. Izi zimasunga kutentha pansi pa 80 °C ngakhale mutagunda 3 kA.

Gawo 2 - Dulani Mphamvu

Timawonjezera fuse yotenthetsera pafupi ndi MOV. Ngati MOV yatentha pa 115 °C, fuse imatsegulidwa mumasekondi 30. Mphamvu yatha ndipo unyolo wamoto umasiya. Fuse imayima kamodzi, koma imapulumutsa nyumbayo.

Gawo 3 - Sungani Lawi

Chikwamacho ndi pulasitiki ya UL 94 V-0. Timawonjezeranso chishango chachitsulo cha 1 mm kuzungulira MOV. Mu mayeso athu a chipinda choyaka moto, lawi limafa pakatha masekondi 8. Palibe pulasitiki yogwa, palibe kufalikira.

Umboni Wakumunda wochokera ku France

Malo osungira deta pafupi ndi Paris adayika mipiringidzo yathu 800. Mipiringidzo ina inagunda 6 kA. Mipiringidzo inatsekedwa, fuse inatsegulidwa, ndipo mipiringidzo inapitiriza kugwira ntchito pa bypass. Palibe moto, palibe nthawi yogwira ntchito. Woyang'anira malo ananditumizira chithunzi cha mipiringidzo yomwe inayaka ndi kalata yothokoza. Chithunzi chimenecho tsopano chili patsamba lathu la intaneti.

Ndi Zinthu Ziti Zokhudza Moto Zomwe Zida Zoteteza Moto Zingathe Kusaletsa?

Ndimauza wogula aliyense zoona: chipangizo changa chimaletsa ma spikes, osati ma short circuits. Ngati waya wosasunthika wakhudza bokosilo, chotchingira ma surge sichingathandize. Mukufunikabe chothyola ndi mawaya abwino.

Moto Wodzaza ndi Zinthu Zambiri

Chotenthetsera chimakoka 15 A pa mzere wa 10 A. Mkuwa mkati mwake umatentha pa 150 °C. Palibe spike yomwe ilipo, kotero MOV sigwira ntchito. Chosweka chokha ndi chomwe chingakupulumutseni. Ndimasindikiza amp rating molimba mtima pa bokosi lililonse.

Moto Wosauka wa Mawaya

Nyumba zakale zili ndi mawaya okwana 0.75 mm². Cholumikizira cha screw chimamasuka pakapita nthawi. Mpatawo umayaka ndi kutentha. Kutenthako kumayambitsa moto mkati mwa khoma. Chopinga cha surge kunja kwa khoma sichingamveke. Ndikulangiza makasitomala anga kuti awonjezere zopumira za arc-fault mu gululo.

Mphezi Mwachindunji Kugunda

Kugunda mwachindunji kwa 200 kA padenga kudzasungunula MOV iliyonse. Chipilalacho chimakhala mpira wamoto. Ndicho chifukwa chake timawonjezera ndodo ya mphezi ya Class I pakhomo la utumiki. Ndodoyo imagunda kwambiri ndipo chipilalacho chimangowona zotsala 10%. Ndimagulitsa zinthu zonse ziwiri ndipo nthawi zonse ndimaziphatikiza.

Mapeto

Chotsukira mpweya chabwino chimadula chivundikirocho, chimachepetsa kutentha, ndikusunga lawi m'bokosi. Ndi chitetezo chotsika mtengo ku moto wambiri, koma si matsenga. Gwiritsani ntchito ndi zopumira, waya wabwino, ndi ndodo ya mphezi, ndipo zotchingira zanu zidzakhalabe zozizira ngakhale usiku wamkuntho woopsa kwambiri.