Amp ke Tenaga Kuda Kalkulator
Hitung secara terbalik daya output motor Anda dalam Tenaga Kuda berdasarkan arus yang ditariknya dari saluran. Sempurna untuk memverifikasi spesifikasi peralatan di lapangan.
Audit Daya Motor
Amperase → Output HP
Tenaga kuda poros berdasarkan input listrik.
Rumus Konversi
Output tenaga kuda motor dihitung dari input listrik — efisiensi dan faktor daya menentukan berapa banyak energi menjadi kerja mekanis.
Motor DC
HP = (I × V × Eff) ÷ 746 Daya input listrik (I × V) dikalikan efisiensi menghasilkan watt output, yang dibagi 746 untuk mendapatkan tenaga kuda.
Motor AC 1-Fase
HP = (I × V × Eff × PF) ÷ 746 Motor AC memerlukan faktor daya — hanya bagian daya nyata (V × I × PF) yang dikonversi menjadi output mekanis.
Motor AC 3-Fase
HP = (√3 × I × V × Eff × PF) ÷ 746 Faktor √3 memperhitungkan distribusi daya di tiga fase. Motor tiga fase memberikan daya lebih besar per ampere dibandingkan satu fase.
How to Convert Amps to Horsepower
Converting amps to horsepower lets you determine a motor's mechanical output from its electrical input measurements. This is useful when the motor nameplate is damaged or missing, when verifying motor performance, or when comparing measured current draw to the rated HP. The key insight: not all electrical input becomes mechanical output — efficiency and power factor dictate how much is lost as heat.
Understanding Motor Efficiency
Motor efficiency is the ratio of mechanical output power to electrical input power. A 5 HP motor drawing 15A at 240V and 0.85 PF consumes about 3,060W of real input power. At 90% efficiency, it delivers 2,754W (≈ 3.69 HP) of mechanical output. The rest becomes heat in the windings. Premium-efficiency motors minimize this loss.
When to Use This Calculation
- Verifying Motor Output: Measure FLA with a clamp meter and calculate HP to confirm the motor is delivering its rated output.
- Troubleshooting Overloads: If the calculated HP is significantly below rated, the motor may be worn, undersized, or operating with a degraded power factor.
- Pump and Fan Selection: When replacing driven equipment, knowing actual HP output (not just nameplate) prevents under-sizing the new load.
- Energy Audits: Calculate actual HP output versus nameplate rating to identify inefficient motors worth replacing with premium-efficiency units.
Step-by-Step Conversion
- Measure or Find the Current: Use a clamp meter for measured FLA, or use the nameplate value.
- Note the Supply Voltage: Use line-to-line voltage for three-phase; line-to-neutral for single-phase.
- Multiply by Efficiency: Motor efficiency in decimal form (85% = 0.85).
- Multiply by Power Factor (AC): Typical induction motors run 0.80–0.92 PF at full load.
- Divide by 746: Convert watts to horsepower using the 746 W/HP constant.