Chifukwa chiyani Chida cha Surge Protector Chimayaka?

Thechitetezo champhamvundi chida chofunikira popewera kuwonongeka kwa zida zamagetsi mnyumba.Pansi pa chitetezo cha SPD, ngakhale mphezi yamagetsi mpaka makumi a kiloamps ilowa m'dera lamkati, chitetezo chachitetezo chimatha kutulutsa mwachangu ku gridi yapansi panthaka, kuteteza kukhazikika komanso kotetezeka kwa zida zathu zamagetsi.Komabe, m'zaka zaposachedwa, vuto la moto la zida zoteteza chitetezo lachitika nthawi ndi nthawi.Kaya woteteza opaleshoniyo ndi wotetezeka kapena ayi komanso chifukwa chomwe chitetezo cha opaleshoni chikuwotcha chakhala chodetsa nkhawa kwa ogwiritsa ntchito.Lero, tikupatsani sayansi yodziwika bwino chifukwa chomwe chitetezo cha opaleshoni chimawotcha.

Mphezi yamakono, nthawi zambiri imakhala ndi mawonekedwe apamwamba, othamanga kwambiri, nthawi zambiri m'machulukidwe ambiri kapena mazana a ma microseconds amadutsa ma kiloamperes amakono apamwamba, ngati sanatulutsidwe, amachititsa zotsatira zoopsa pakugwiritsa ntchito zipangizo zamagetsi ndi moyo waumunthu.Surge mtetezi ntchito resistors kuthamanga-tcheru kapena mipata kutulutsa, mu ntchito yachibadwa ndi lofanana ndi kukana kwambiri ndipo sizimakhudza ntchito yachibadwa ya zida zina zamagetsi, mu mzere mphezi panopa kulowerera mwamsanga khalidwe, mphezi panopa yochepa dera ku nthambi. ndi kutulutsa ku zipangizo zoyatsira pansi.Dziko la SPD lomwe limayambitsidwa ndi mphezi yamphamvu kwambiri nthawi zambiri limawombedwa, ndipo palibe nthawi yoti SPD itenthe.Ndiye n'chifukwa chiyani chipangizo choteteza opaleshoni chikuyaka?

Chipangizo choteteza opaleshoni chakhala chikugwiritsidwa ntchito pamzere kwa nthawi yayitali, ndipo pang'onopang'ono chidzawonongeka.Panthawiyi, pamene zida zazikulu zomwe zili pamzerewu ziyamba kugwira ntchito, mphamvu yowonjezera yowonjezera idzapangidwa.Kuchulukitsitsa kogwiritsa ntchito uku kungapangitse kuti varistor apange nthawi yayitali.Malinga ndi Electric heat generation formula, kutentha kukafika pamlingo wina, woteteza mawotchiwo amapanga kutentha kwambiri ndikupangitsa kuti moto uzimitsidwa.Chifukwa chake, chitetezo chachitetezo chimawotchedwa, nthawi zambiri chimayamba chifukwa chamagetsi afupipafupi.

Chifukwa cha izi, zanenedwa momveka bwino mu GB 51348-2019 kuti kumapeto kwa oteteza opaleshoni ayenera kukhala ndi chitetezo chapadera cha SPD.Kuthamanga kwafupipafupi kumachitika pamzere, woteteza chitetezo amachotsedwa mwachangu, kuti chitetezo chachitetezo chitetezedwe, motere chitetezo cha opaleshoni sichidzawotcha.