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Nā kuhikuhi no ka hoʻohanaʻana: E hoʻololi i nā amps (А) i nā watts (Mart), e hoʻokomo i nā waiwai o kēia manawa I i nā amperes (A), uila U i nā volts (В), koho i ka mea mana PF mai 0,1 a i 1 (inā makemake ʻia), a laila kaomi i ka "E helu”. Pela e loaa ai ka mana P в Mart. No ka hoʻonohonoho hou i ka ʻikepili i hoʻokomo ʻia, kaomi i ke pihi pili.
Ka m'kini helu А в Mart (1 pae DC)
Kumu no ka unuhi А в Mart
PMart =IА ⋅ UВ
mana P i nā watts (Mart) o kahi pūnaewele pae hoʻokahi me ke au pololei e like me ka huahana o ka ikaika o kēia manawa I i nā amperes (А) a me ke kaumaha U i nā volts (В).
Ka m'kini helu А в Mart (1 pae, AC)
Kumu no ka unuhi А в Mart
PMart = PF ⋅ IА ⋅ UВ
mana P i nā watts (Mart) o kahi pūnaewele pae hoʻokahi me ke au ʻokoʻa ua like ia me ka ikaika o kēia manawa I i nā amperes (А) i hoonuiia e ka volta U i nā volts (В) a me ka helu mana PF.
Ka m'kini helu А в Mart (3-phase, AC, laina-i-laina voltage)
Kumu no ka unuhi А в Mart
PMart = √3 ⋅ PF ⋅ IА ⋅ UВ
mana P i nā watts (Mart) o kahi wīwī AC ʻekolu ʻāpana me ka volta laina-a-laina like me ke kumu huinahalike o ʻekolu manawa o ka manawa I i nā amperes (А), uila U i nā volts (В) a me ka helu mana PF.
Ka m'kini helu А в Mart (3 mau ʻanuʻu, AC, puʻe uila)
Kumu no ka unuhi А в Mart
PMart = 3 ⋅ PF ⋅ IА ⋅ UВ
mana P i nā watts (Mart) o kahi pūnaewele ʻekolu ʻāpana me ka ʻokoʻa o kēia manawa a me ka puʻupuʻu puʻupuʻu e like me ʻekolu manawa o ka huahana o ka ikaika o kēia manawa. I i nā amperes (А), uila U i nā volts (В) a me ka helu mana PF.