Servo Voltage Stabilizer
Fast, accurate voltage correction with ±1% regulation and less than 100ms response. 1–1500 KVA, single / three-phase, air / oil cooled, as per IS:9815-94 tested.
Product Description
Bluebird’s Servo Voltage Stabilizer range covers 1 KVA to 1500 KVA, in single phase and three phase, air-cooled and oil-cooled configurations. At the core is a microcontroller-based circuit, correcting voltage automatically and continuously with a regulation of ±1% or better and a response time under 100ms.
The range performs consistently across a wide input voltage and frequency band, with no waveform distortion and no drop in output regardless of load power factor. Auto/manual operation, panel-mounted output adjustability, and over/under voltage indicators are standard across the line, and plug-in glass-epoxy control cards keep servicing simple.
Because voltage instability wears down equipment gradually rather than all at once, the stabilizer’s job is mostly invisible when it’s working. Homes get protection for appliances and electronics, offices and hospitals keep sensitive equipment running on a stable supply, and factories run motors and machinery without the losses that come from unstable input. Components conform to relevant IS/BS standards, and units are routinely tested to IS:9815-94.
Automatic Correction
Corrects voltage automatically and continuously, keeping supply stable at all times.
Motor Protection
Ensures induction motors operate at high efficiency by supplying constant voltage.
Equipment Protection
Protects costly equipment from High/Low voltage menace, cutting down maintenance costs.
Reduced Production Losses
Minimizes production losses and improves overall plant efficiency.
Increased Productivity
Stable voltage supply leads to increased productivity across operations.
Tax Benefit
Eligible for 100% depreciation as per Income Tax Act.
Lower MDI
Reduces Maximum Demand Indicator (MDI) and saves power.
Electricity Savings
Reduces electricity bills by up to approximately 15%, depending on input variation and working hours.
Diesel Savings
Saves on diesel cost, as generators need not run at High/Low input voltage.
Fast ROI
Average payback period of approximately 18 months owing to high energy-saving capability.
Recommended Applications
- Information Technology and Call Centers
- Computer and Micro-Processor Controlled Equipment
- Scientific, Medical, Agricultural and Educational Research Instruments
- Offset Printing Presses, Color Scanners, Phototypesetters and Photographic Equipment
- Medical Equipment — X-Ray Machines, ECG Machines/Monitors, MRI, CT Scans
- Defence Installations, LPTs, HPTs, Broadcasting and Telecommunications
- Lifts, Escalators and Elevators
- Central Air-Conditioning Plants, Chemical and Textile Industries
- CNC Machines, Laser Machines and Moulding Machines
- Commercial Buildings and Complexes
- Hospitals and Nursing Homes
Not Recommended For
- Small single-appliance loads like a single fan or light, where a plug-in voltage protector is more economical
- Applications requiring instantaneous (zero-time) correction, since servo stabilizers correct voltage gradually via a motorized mechanism
- Extremely space or weight-constrained installations, as servo units are bulkier than static/AVR types
- Environments with frequent, rapid voltage fluctuations occurring within milliseconds, where a static (electronic) stabilizer responds faster
- Portable or frequently relocated setups, since servo stabilizers are typically fixed installations
Specifications
| Phase | Single Phase |
|---|---|
| Input Voltage Range | 180 – 270V, 160- 270V, 140- 270V |
| Phase | Single |
| Capacity | 1-100 KVA(Single Phase), 3-1500 KVA(3-Phase) |
| Output Voltage (Single Phase) | 220V / 230V / 240V (Adjustable) |
| Output Voltage (Three Phase) | 380V / 400V / 415V (Adjustable) |
| Regulation | ±1% or better |
| Supply Frequency | 47 Hz – 53 Hz |
| Efficiency | Better than 97% |
| Effect of Load Power Factor | Nil |
| Wave Form Distortion | Nil |
|---|---|
| Rate of Correction | Better than 20V / sec |
| Duty Cycle | 100% Continuous |
| Response Time | Less than 100 ms |
| Over Load Capability | Upto 200% Momentarily |
| No Load Losses | Less than 0.8% over entire range |
| Suitability | Suitable for 3Ph unbalanced / balanced supply & unbalanced / balanced load |
| Mounting | On Wheels |
| Earthing | Earthing Terminals Provided |