1. What is Motor Absorbed Power Calculator for Generator?

Definition: This calculator determines the actual power consumed by an electric motor when connected to a generator.

Purpose: It helps electrical engineers and technicians properly size generators and understand motor power requirements.

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, 0-1)

Explanation: The voltage and current product gives apparent power, which is then multiplied by the power factor to get real power.

3. Importance of Absorbed Power Calculation

Details: Proper calculation ensures generators aren't overloaded and motors receive adequate power for efficient operation.

4. Using the Calculator

Tips: Enter the voltage in volts, current in amps, and power factor (default 0.8). 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 how effectively current is converted to useful work.

Q2: Why is power factor important?
A: Low power factor means more current is needed for the same real power, requiring larger generators and wiring.

Q3: What's a typical power factor for motors?
A: Induction motors typically have 0.8-0.9 PF at full load, lower at partial loads. The default 0.8 is conservative.

Q4: Should I use line or phase values for 3-phase?
A: This calculator uses single-phase values. For 3-phase, multiply by √3 (1.732) for line-to-line calculations.

Q5: How does this relate to generator sizing?
A: Generators must supply at least the absorbed power plus startup surges (typically 3-6x running current).