GrameenBitek’s Auto Servo Voltage Stabilizer accepts widely varying input voltage with an automatic servo-mechanism,which has a broad operating range.it detects variations in input voltage, amplifiesthem, drives a servomotor and, with a built –in sliding type transformer, keeps the output voltage stable. The input and output are 1-phase two- wire and 3-phase four wire system. There is selector switch facility to monitor phase –to- phase and neutral-to-phase input & output voltage condition. GrameenBitek 1-phase/3-phase Voltage Stabilizer is suitable for Residence, Apartment, Office, Factory, Hospital, Industry, Shopping Center, Defense, Elevator, Escalator and all 1-phase/3-phase Electrical &Electronic Equipment.
Key Features/Benefits:
- Total Protection
- Fully Automatic
- Fast Response Time
- Anti Fluctuation Delay
- Built-In Bypass Facility
- Servo Motor Controlled
- Individual Phase Control
- Phase Missing Guard
- Over Load Protection
- One Year Warranty
- Wide Input Range
Technical Specification:
| Particulars | Single Phase | Three Phase |
| capacity | 300VA-30KVA | 300VA-30KVA |
| Input Voltage Range | 120-280V/100-280V | 300-460V/250-460V |
| Output Voltage | 220V(adjustable) | 380/400/415V(adjustable) |
| Output Tolerance | ±1%-±5% | ±1%-±5% |
| Correction Speed | 30-50V/sec | 30-50V/sec |
| Frequency | 50Hz | 50Hz |
| Voltage Control | Servo/Electronic | Servo/Electronic |
| Cut-off Control | Electromagnetic Relay/contactor | Electromagnetic Relay/contactor |
| Sensing system | Neutral to Phase | Neutral to Phase/Phase to Phase |
| Waveform Distortion | Nil | Nil |
| Cooling System | Air/Oil | Air/Oil |
| Input/Output Voltmeter | Analog/Digital(optional) | Analog/Digital(optional) |
| LED Indicators | Normal,Hi,Lo,Delay | Normal,Hi,Lo,Delay |
| Short Circuit Protection | Fuse/Circuit Breaker | Fuse/Circuit Breaker |
| By-pass Facility | Circuit Breaker/Contactor(optional) | Circuit Breaker/Contactor(optional) |
| Protection | High voltage,Low voltage, Fluctuation, Overload,Short circuit, Lightning, Surge, Sag, Spike, Notch, Transient, Flicker, Brownout, Radio Frequency noise | High voltage,Low voltage, Fluctuation, Overload, Short circuit, Lightning, Surge, Sag, Spike, Notch, Transient, Flicker, Brownout, Radio Frequency noise |
| Ambient Temperature | 4⁰C-45⁰C | 4⁰C-45⁰C |
| Ambient Humidity | <95% | <95% |
| Efficiency | >90% | >90% |
| Overload | >110% For 30 Sec | >110% For 30 Sec |