Voltage Regulation Calculator
Calculate the voltage regulation of a power system based on no-load and full-load voltage measurements.
About Voltage Regulation
Voltage regulation measures how well a power system maintains constant voltage under varying load conditions. It’s calculated as the difference between no-load voltage and full-load voltage, relative to the full-load voltage.
Formula
Where:
- VNL = No-load voltage (voltage when no current is drawn)
- VFL = Full-load voltage (voltage at maximum rated current)
Frequently Asked Questions
What is good voltage regulation?
Generally, a voltage regulation below 5% is considered good for most applications. For sensitive equipment, even tighter regulation (1-2%) may be required.
Why is voltage regulation important?
Proper voltage regulation ensures electrical equipment receives stable voltage, preventing damage from overvoltage or performance issues from undervoltage.
How can I improve voltage regulation?
Methods include using voltage regulators, tap-changing transformers, reducing line impedance, or installing capacitors to improve power factor.