Stencils
Krag in watt, kW en perdekrag 0°) plus energiegebruik en wat loopkoste.
Resultate werk op soos jy tik.
Aangaande hierdie sakrekenaar
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.
Dikwels gevra vrae
Wat is die elektriese kragformule?
Ware mag in watt is P = V × I × PF. Vir DC of 'n weerstandslas is die kragfaktor 1, so mag is eenvoudig spanningstye stroomend.
Hoeveel watt in'n perdekrag?
Een meganiese perdekrag is gelyk aan 745,7 watt, en daarom is'n 1492 - W - vrag ongeveer 2 ip. Deel watt teen 745,7 omskakel.
Hoe word die koste wat jy moet hardloop, bereken?
Daaglikse energie is krag (kW) ×ure per dag, in kWh. Vermenigvuldig teen 30 dae en jou prys per kWh om die maandelikse koste te bereken.
Wat is kragfaktor en wanneer verander ek dit?
Power factor is the fraction of the apparent power (V × I) that does real work. It is 1 for DC and resistive loads like heaters and incandescent bulbs, but drops to roughly 0.7–0.9 for motors and many electronic supplies, reducing the real watts.
Wat is die verskil tussen watt en vit-ampere?
Watts is ware mag (V × I × PF); volt-amperse is klaarblyklik mag (V × I) met geen krag-faktore regstelling. Vir weerstandswerk vragte hulle is gelyk, maar vir reageerende vragte die VA gradering is hoër, wat is waarom opwek en UPS rangordes in VA gegee word.
Hoe skakel ek watt om na perdekrag?
Divide the watts by 745.7. So 1,200 W is about 1.61 hp, and a 1 hp motor draws roughly 746 W of mechanical-equivalent power (more electrically, once efficiency losses are included).
API ← gebruik hierdie sakrekenaar van kode
Bel hierdie sakrekenaar as 'n vry JSON-punt takies wat nodig is. Stuur die veldwaardes hieronder as navraag parameters of JSON. Enigiets wat jy weglaat gebruik dieselfde verstek hierdie bladsy is vooraf gevul met; 'n onbekende parameter is 'n 400, nooit' n stil nul. Lees die volle API docs →
Einde punt:
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);Die resultate is skattings van algemene leiding, nie net finansiële, mediese of belastingvoorligting nie.