Umahluko phakathi kwesixhobo sokukhusela i-Surge kunye ne-Overvoltage Protector

Izixhobo zokukhusela i-Surge kunye nezikhuseli ze-overvoltage zizixhobo ezimbini zokukhusela izixhobo zombane ezisetyenziswa rhoqo. Zinokunciphisa okanye zikhuphe i-overvoltage yexeshana kwinkqubo yamandla kwaye zithintele izixhobo zombane ukuba zonakaliswe ngumbane okanye ezinye izizathu. Nangona kunjalo, imigaqo yazo yokusebenza, izalathisi zokusebenza, iimeko zokusetyenziswa kunye nemigangatho yesizwe zonke zahlukile. Eli nqaku liza kuthelekisa kwaye lihlalutye izikhuseli ze-surge kunye nezikhuseli ze-overvoltage kwezi nkalo zine ukuze abafundi bakwazi ukukhetha ngokuchanekileyo nokusebenzisa ezi zixhobo zimbini zokukhusela.

Isixhobo sokukhusela ukugquma (I-SPD) sisixhobo sombane esisebenza nge-voltage ephantsi esisetyenziswa kwiinkqubo zokusasazwa kwe-voltage ephantsi ukunciphisa i-instantaneous overvoltage kunye ne-discharge surge current. Icandelo laso eliphambili yi-zinc oxide varistor (Metal Oxide Varistor, MOV), eneempawu ze-nonlinear voltage-current, oko kukuthi, xa i-voltage esetyenzisiweyo iphantsi kunomda wayo, ukumelana kwayo kuphezulu kakhulu kwaye phantse akukho mda udlulayo; Xa i-voltage esetyenzisiweyo ingaphezulu komda wayo, ukumelana kwayo kuncipha ngokukhawuleza, kudlule inani elikhulu lomda. Ngale ndlela, xa kwenzeka i-overvoltage ekhawulezileyo kwi-power grid, i-surge protector iya kuvula ngokukhawuleza kwaye ikhuphe i-overvoltage kumgca womhlaba, ngaloo ndlela ikhusela izixhobo zombane ezilandelayo.

I-Overvoltage Protector (OVP) sisixhobo esinokunqumla umbane ngokuzenzekelayo nangokukhawuleza. Icandelo laso eliphambili yi-voltage sensor (Voltage Sensor), enokuqaphela utshintsho lwe-voltage kwi-power grid kwaye iqhagamshelwe kwi-control circuit. Xa i-voltage kwi-power grid idlula uluhlu olubekiweyo, i-control circuit iya kubangela iswitshi yokunqumla umbane, ngaloo ndlela ikhusela izixhobo zombane ezilandelayo.