Les Formules

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Formules & calculettes

Modifiez les valeurs, le résultat s’actualise instantanément.

Puissance — Monophasé

P (Watt) = U (Tension) × I (Ampère)

P = 2300.00 Watts
Intensité depuis P et U

I (Ampère) = P (Watt) ÷ U (Tension)

I = 10.00 A
Loi d’Ohm — Tension

U (Volt) = R (Ohm) × I (Ampère)

U = 230.00 V
Loi d’Ohm — Intensité

I (Ampère) = U (Volt) ÷ R (Ohm)

I = 10.00 A
Loi d’Ohm — Résistance

R (Ohm) = U (Volt) ÷ I (Ampère)

R = 23.00 Ω
Énergie électrique consommée

E (Wh) = P (W) × t (heures) — affichage en Wh et kWh

E = 2300.00 Wh

Soit 2.30 kWh

Puissance apparente

S (VA) = U (Volt) × I (Ampère) ; P (W) = S × cosφ

S = 2300.00 VA
P = 2300.00 W
Puissance — Triphasé

P (W) = √3 × U (V) × I (A) × cosφ

P = 6928.20 W
Chute de tension

ΔU (V) = ρ (Ω·mm²/m) × L (m) × I (A) ÷ S (mm²)

ΔU = 3.50 V

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