I loko o kahi kaapuni AC, aia ʻelua ʻano o ka mana uila i hāʻawi ʻia i ka ukana mai ka mana lako: ʻo ka mana hana a ʻo ka mana reactive kekahi.Ke hoʻouka ʻia ka haʻawe, ʻo ka mana i hoʻopau ʻia he mana ikaika, i ka wā he capacitive a i ʻole inductive ka ukana, ʻo ka hoʻohana ʻana he mana reactive.ʻO ka mana ikaika a me ka mana o kēia manawa ma ka pae hoʻokahi (ʻo ka mana AC ka ʻokoʻa ma waena o ka mana hana a me ka mana reactive), ke ʻoi aku ka mana o ka mana o kēia manawa, ʻo ia ka mana reactive inductive;i ka wā i ʻoi aku ai ka mana o kēia manawa i ka volta, ʻo ia ka mana capacitive reactive.

ʻO ka mana ikaika ka mana uila e pono ai e mālama i ka hana maʻamau o nā mea uila, ʻo ia hoʻi, ka hoʻololi ʻana o ka ikehu uila i nā ʻano ʻano ʻē aʻe o ka ikehu (ʻike mīkini, ikehu māmā, wela) o ka mana uila.Eia kekahi laʻana: 5.5 kilowatts o ke kaʻa uila he 5.5 kilowatts o ka ikehu uila i hoʻololiʻia i ka ikehu mechanical, e hoʻolele i ka paila e paila i ka wai a iʻole ka mīkini hehi;e hoʻololi ʻia nā lako kukui like ʻole i ka ikehu māmā, no ka poʻe e noho a hana i nā kukui.

ʻOi aku ka abstract mana reactive;ʻo ia ka mana uila i hoʻohana ʻia no ka hoʻololi ʻana i nā māla uila a me nā māla i loko o kahi kaapuni a no ka hoʻokumu ʻana a me ka mālama ʻana i ke kahua magnetic i nā mea uila.ʻAʻole hana ma waho, akā hoʻololi ʻia i nā ʻano ʻano ikehu ʻē aʻe.ʻO kēlā me kēia mea uila me kahi coil electromagnetic e hoʻopau i ka mana reactive e hoʻokumu i kahi kahua magnetic.No ka laʻana, pono ke kukui uila 40-watt i ʻoi aku ma mua o 40 watts o ka mana hana (pono ka ballast e hoʻopau i kahi ʻāpana o ka mana hana) e hoʻokuʻu i ka mālamalama, akā koi pū kekahi ma kahi o 80 reactive mana no ka ballast coil e hoʻokumu i kahi ʻano magnetic. kahua.No ka mea, ʻaʻole ia e hana i waho, e kapa ʻia ʻo "reactive".