Mea pale uila CJ-D20 2p 1.2ka 20ka Mana SPD Arrester

ʻIkepili loea

He aha ka mea pale surge (SPD)?

ʻO ka Pūnaehana Palekana Surge (SPD) kahi ʻāpana o ka ʻōnaehana pale uila. Hoʻopili kēia mea hana ma ke ʻano like me ke kaapuni lako mana o nā ukana e pono ai ke pale. Hoʻohuli hou ka mea pale surge i nā au uila e like me ke au hoʻokuʻu nominal mai kahi kaapuni pōkole. Hana ia i kēlā me ka hoʻohana ʻana i kahi pilina paʻa a i ʻole kahi kuapo air-gap. Eia kekahi, lawelawe ka mea pale surge ma ke ʻano he mea pani palekana ukana no nā kūlana overcurrent a me kahi recloser e kaohi ana i ka pae voltage ma luna o ka voltage i helu ʻia a i ʻole ka voltage haʻahaʻa i ka hanana o kahi kūlana hewa. Hiki iā mākou ke hoʻohana i ka mea pale surge ma nā pae āpau o ka pūnaewele lako mana. ʻO kēia ʻano hana ka mea i hoʻohana pinepine ʻia a ʻoi aku ka maikaʻi o ke ʻano o ka pale overvoltage.

ʻO ka mea pale surge i hoʻopili ʻia ma ke ʻano like he impedance kiʻekiʻe. I nā huaʻōlelo ʻē aʻe, ʻo ka huina o ka impedance series ua like ia me ka impedance o hoʻokahi mea pale surge. Ke ʻike ʻia ka overvoltage transient i loko o ka ʻōnaehana, emi ka impedance o ka mea hana, no laila e hoʻokele ʻia ke au surge ma o ka mea pale surge, e kāpae ana i nā lako koʻikoʻi. ʻO ia hoʻi, e pale i nā lako mai nā transients overvoltage a me nā haunaele, e like me nā voltage spikes a me nā surges uila, nā ʻokoʻa alapine, a me nā over-voltage i hoʻokumu ʻia e nā hana hoʻololi a i ʻole ka uila. Ke hoʻokomo kahi mea hoʻohana i kahi surge strip a i ʻole kahi mea pale surge i loko o kahi laina mana e hele mai ana mai kahi pono hana mana e komo pū ana me nā capacitors smoothing, ʻaʻole pono nā surge suppressors no ka mea ua pale mua kēia mau capacitors mai nā loli koke i ka pae voltage.