An Automatic Servo Voltage Control (AVC) Stabilizer (Capacity: 30KVA to 6000 KVA) is an electrical device designed to maintain a constant output voltage regardless of fluctuations in the input power supply. It is widely used to protect electrical and electronic equipment from damage caused by unstable voltage.
In many places, the supply voltage can vary (too high or too low).
An AVC stabilizer:
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- Detects voltage changes automatically
- Corrects the voltage in real time
- Supplies a stable output to connected devices
🧩 Main components:
- Transformer – adjusts voltage level
- Control circuit – senses and regulates voltage
- Relays / Servo motor / Electronic switches – perform correction
- Display unit (optional) – shows voltage status
- Cooling system – prevents overheating
🔍 Types of AVC Stabilizers:
- Automatic Servo Voltage Stabilizer – Balanced (Capacity : 2500/KVA)
- Automatic Servo Voltage Stabilizer- Unbalanced (Capacity: 1500KVA)
Automatic Servo Stabilizers are available in wide range and various models. The standard three phase models are suitable for balanced and unbalanced supply and loads. The standard model confirm the following specifications are as follow:
Input Voltage : 300-460V | 320-460V | 340-460V | 350-460V
Efficiency : Better than 99%
Output Voltage : 400V/415V +/- 1%. 3 Phase, 50 Hz
Ambient : 0-35 °C max relative humidity up to 90%.
Environment : Designed for Indoor tropical use.
Wave from distortion : Virtually Nil.
Duty Cycle : 100% Continuous.
Correction Rate : 10-20V/Sec. (or as per your req.)
Mounting : On Uni-directional wheels.
Salient Feature:
- Reduction in breakdown of electrical equipment
- Energy Saving
- Improvement in Power Factor & MDI
- Improved Power Quality & Stable Supply System
- Depreciation @ 80% as per Income Tax (in India Only)