Electrical Power Calculator
Power mu Watts, kW ndi horsepower - kuphatikizapo kugwiritsa ntchito mphamvu ndi mtengo woyendetsa.
Zithunzizi zimasintha monga momwe mumalemba.
Zachidule
Electrical power is the rate at which a device converts electrical energy, measured in watts. For a DC or purely resistive load it is simply voltage times current, P = V × I. For an AC load with a power factor below 1 — motors, transformers and other inductive loads — the real power that does useful work is P = V × I × PF, while the product V × I alone gives the larger apparent power in volt-amperes. This calculator reports the power in watts, kilowatts and mechanical horsepower, using 1 hp = 745.7 W.
As a worked example, a device on a 120 V circuit drawing 10 A at unity power factor uses P = 120 × 10 = 1,200 W, which is 1.2 kW or about 1.61 hp. If instead it were a motor with a 0.8 power factor, the real power would fall to 120 × 10 × 0.8 = 960 W even though it still draws the same 10 A. Divide watts by 745.7 to convert to horsepower, or by 1,000 to get kilowatts.
The advanced usage fields turn power into running cost. Daily energy in kilowatt-hours is the power in kW multiplied by the hours used per day; multiply by your price per kWh for the daily cost and by 30 for a monthly estimate. A 1.2 kW load run 4 hours a day uses 4.8 kWh daily, about 144 kWh a month, which at $0.15/kWh is roughly $21.60 a month — the kind of figure that helps compare appliances, size a generator or budget a workshop.
Mafunso ofunsidwa nthawi zambiri
Kodi ndi chiyani formula ya mphamvu yamagetsi?
Mphamvu yachikhalidwe yamagetsi ndi P = V × I × PF. Pogwiritsa ntchito DC kapena resistive load, mphamvu yamagetsi ndi 1, ndipo mphamvu ndi nthawi yamagetsi.
Kodi pali ma watts angati mu horsepower?
Mmodzi wa makina horsepower ndi 745.7 watts, choncho 1492 W kulemera ndi zokhudza 2 hp.
Kodi ndi chiyani chiopsezo choyendetsa?
Mphamvu ya tsiku ndi tsiku ndi mphamvu (kW) × maola tsiku lililonse, mu kWh.Kupititsa patsogolo ndi 30 masiku ndi mtengo wanu pa kWh kuti muwerenge mtengo wa mwezi.
Kodi ndi chiyani power factor ndi pamene ine kusintha izo?
Power factor ndi gawo la mphamvu yooneka (V × I) yomwe imachita ntchito yoyenera. Ndi 1 kwa DC ndi zonyamula zotsutsana monga ma heaters ndi ma bulbs owala, koma amagwa mpaka pafupifupi 0.7-0.9 kwa ma motors ndi zinthu zambiri zamagetsi, kuchepetsa ma watts anzeru.
Kodi pali kusiyana kotani pakati pa ma watts ndi volt-amperes?
Watts ndi mphamvu yachikhalidwe (V × I × PF); volt-amperes ndi mphamvu yooneka (V × I) popanda kusintha kwa mphamvu-factor. Kwa zonyamula zotsutsana ndi iwo ndi ofanana, koma kwa zonyamula zoyankhulana VA rating ndi yotsika, chifukwa chake generator ndi UPS ratings ndi zoperekedwa mu VA.
Kodi ndingasinthe bwanji ma watts kuti ndigwiritse ntchito?
Kugawa Watts ndi 745.7.So 1,200 W ndi zokhudza 1.61 hp, ndi 1 hp motor amatenga pafupifupi 746 W ya makina-zofanana mphamvu (zambiri ndi magalimoto, pamene kuwonongeka kwa efficiencies ndi kuphatikizidwa).
API — kugwiritsa ntchito izi calculator kuchokera code
Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Kuti mudziwe zambiri, pitani ku www.json.org/json.html. Chomweko chilichonse chimene mumasiya chimagwiritsa ntchito mfundo yoyamba yomweyi yomwe tsambali limagwiritsa ntchito; mfundo yosadziwika ndi 400, siyiyenera kukhala zero yosadziwika. Onani zonse API docs →
Chithunzi
GET https://calculator.free/api/v1/electrical-power/curl
curl "https://calculator.free/api/v1/electrical-power/?voltage=120¤t=10"JavaScript fetch()
const r = await fetch(
"https://calculator.free/api/v1/electrical-power/?" + new URLSearchParams({
"voltage": "120",
"current": "10"
}));
const data = await r.json();
console.log(data.results);Zimenezi ndi zowerengera zokhudzana ndi malangizo amtundu uliwonse, si zokhudzana ndi ndalama, zamoyo kapena zokhudzana ndi ndalama.