Nā Mea Palekana Piʻi (SPD Au Pololei)

Ka laulā o ka noi

He kūpono ʻo SPD no nā ʻano ʻōnaehana hoʻolaha haʻahaʻa haʻahaʻa me ka uila grid ma lalo o 1000 volts a me ke alapine (frequency) o 50/60HZ, e like me ka leka uila a me ke kelepona, nā alahao, nā ʻōnaehana kālā, nā kahua aila, nā hale kiʻekiʻe, nā hale a me nā hale keʻena. No ka pale ʻana i nā lako uila (e like me nā kamepiula, nā mea kani a me nā lako, nā lako hale, a me nā mea ʻē aʻe) o kēia mau mea hoʻohana mana mai nā hahau uila, ka overvoltage transient a me nā pōʻino overvoltage surge ʻē aʻe. E hōʻoia i nā lako a me ka palekana pilikino. He mea pale overvoltage kūpono ia.

ʻO ke ʻano nui a me ke kumumanaʻo hana

Ma ka ʻōnaehana ʻehā-uea ʻekolu-paepae, ua hoʻopili ʻia nā mea pale ma waena o nā uea ʻekolu-paepae a me kahi uea kūlike ʻole i ka uea honua (e nānā i ke kiʻi ma lalo). Ma lalo o nā kūlana maʻamau, aia ka mea pale ma ke kūlana Levin, a i ka wā e hoʻopilikia ʻia ai ka pūnaewele mana i ka overvoltage surge ma muli o ka uila a i ʻole nā ​​​​kumu ʻē aʻe. E hoʻā koke ʻia ka mea pale i ka manawa nanosecond, e hoʻokomo ana i ka overvoltage surge i loko o ka honua, a pēlā e pale ai i nā lako uila ma ka pūnaewele mana. Ke hele ka overvoltage surge ma o ka mea pale a nalowale, hoʻi hou ka mea pale i ke kūlana kū'ē kiʻekiʻe. I ʻole e hoʻopilikia i ka hana maʻamau o ka pūnaewele mana.

Hiʻona