1. What is Motor Absorbed Power Calculator?

Definition: This calculator estimates the actual power consumed by an electric motor based on voltage, current, and power factor.

Purpose: It helps electrical engineers and technicians determine the real power consumption of motors in various applications.

2. How Does the Calculator Work?

The calculator uses the formula:

Where:

• \( P \) — Absorbed power (Watts)
• \( V \) — Voltage (Volts)
• \( I \) — Current (Amperes)
• \( PF \) — Power factor (dimensionless, between 0 and 1)

Explanation: The voltage and current are multiplied by the power factor to get the real power consumed by the motor.

3. Importance of Absorbed Power Calculation

Details: Proper power calculation ensures correct motor sizing, energy efficiency assessment, and electrical system design.

4. Using the Calculator

Tips: Enter the voltage in volts, current in amperes, and power factor (default 0.85). Power factor must be between 0 and 1.

5. Frequently Asked Questions (FAQ)

Q1: What is power factor?
A: Power factor is the ratio of real power to apparent power, representing the efficiency of power usage.

Q2: What's a typical power factor for motors?
A: Most AC induction motors have power factors between 0.8 and 0.9 when fully loaded.

Q3: Why does power factor matter?
A: Low power factor means more current is needed for the same real power, increasing energy losses.

Q4: How do I measure voltage and current?
A: Use a multimeter or clamp meter while the motor is operating under normal load.

Q5: Does this calculation work for three-phase motors?
A: For three-phase, you need to multiply by √3 (1.732) as well: P = √3 × V × I × PF.