A voltage stabilizer, also known as a voltage regulator or AVR (Automatic Voltage Regulator), is an electrical device designed to automatically maintain a constant voltage level at the output despite fluctuations or variations in the input voltage. It’s commonly used in homes, offices, and industrial settings to protect electrical appliances and equipment from damage due to overvoltage or under voltage conditions.
Here’s how a voltage stabilizer for home typically works:
- Sensing: The stabilizer continuously monitors the input voltage from the power supply.
- Comparison: It compares the input voltage level with the desired output voltage level.
- Control: If the input voltage deviates from the desired output voltage, the stabilizer activates its control mechanism to adjust the voltage accordingly.
- Correction: The stabilizer uses different mechanisms to correct the voltage level based on the type of stabilizer:
- Relay-based Stabilizers: These stabilizers use electromagnetic relays to switch taps on a transformer, thereby adjusting the output voltage level.https://stabilizer.pk/product-category/multipurpose-stabilizer/
- Servo-controlled Stabilizers: These stabilizers use a motor-driven variable transformer (also known as a variac) to adjust the output voltage. The motor moves the brush contacts along the winding of the transformer to vary the output voltage.https://stabilizer.pk/product-category/servo-stabilizer/
- Electronic Stabilizers: These stabilizers use electronic components such as transistors, operational amplifiers, and other semiconductor devices to regulate the output voltage. They typically employ a feedback mechanism to adjust the voltage.
- Output: Once the voltage correction is made, the stabilizer provides a stable output voltage to the connected electrical devices.
The primary function of a voltage stabilizer is to ensure that the voltage supplied to the appliances remains within a safe and optimal operating range, typically around ±5% of the nominal voltage, despite fluctuations in the input voltage. This helps in protecting sensitive electronic equipment from damage caused by overvoltage or under voltage conditions.
When choosing a voltage stabilizer for home use, factors such as the power rating, input voltage range, output voltage stability, and type of correction mechanism should be considered to ensure compatibility and effectiveness for the intended application.