Table of Contents

1. Introduction
2. Working Principle of an Automatic Voltage Regulator
3. Key Components
4. Numerical Analysis and Performance Parameters
5. Kelida Company Solutions
6. Conclusion
7. References

Introduction

An automatic voltage regulator (AVR) is essential in maintaining the voltage level to electrical equipment. By controlling the output voltage automatically, AVRs ensure that devices receive a steady voltage, thus preventing damage from voltage fluctuations.

Working Principle of an Automatic Voltage Regulator

The primary function of an AVR is to take the variable output from a generator or utility and stabilize it to a consistent output. It achieves this by using a closed-loop system where the output voltage is constantly monitored and adjusted.

Key Components

• Voltage Sensor: Measures the output voltage and provides feedback.
• Control Circuit: Compares the sensor input with a reference voltage.
• Amplifier: Boosts the error signal to drive the actuator.
• Voltage Booster: Adjusts excitation voltage to the generator field winding.

Numerical Analysis and Performance Parameters

To evaluate an AVR's performance, several parameters are considered:

• Regulation Accuracy: The ability to maintain output voltage within ±1% under varying load conditions.
• Response Time: Typically, AVRs have a response time of less than 0.5 seconds for sudden load changes.
• Output Voltage Range: A range from 220V to 240V for standard models.
• Load Capacity: Up to 500 kVA in industrial applications.

Kelida Company Solutions

Kelida Electric offers advanced AVR solutions designed to enhance efficiency and protection:

• Kelida AVR Series: Offers voltage regulation with a precision of ±0.5%.
• Smart Monitoring: Includes real-time monitoring and diagnostics through an integrated digital interface.
• Eco-Mode: Reduces operational costs by optimizing power consumption based on load requirements.

Conclusion

An automatic voltage regulator is indispensable in modern electrical systems, ensuring stability, improving efficiency, and protecting devices from erratic voltage levels. Companies like Kelida are at the forefront, providing innovative AVR solutions for diverse applications.

References

• Smith, J. Understanding Voltage Regulators. Electronics World Journal, vol. 28, no. 4, 2022, pp. 15-23.
• Kelida Electric. Automatic Voltage Regulators: Product Catalogue. 2023.