STATIC VOLTAGE STABILIZER
Static Voltage Stabilizer is an IGBT based PWM type buckboost voltage stabilizer which has tight regulation and fast correction speed which is impossible to obtain using conventional methods such as servo voltage stabilizers, SCR / triac type stabilizer, relay type stabilizer etc.
This is specially useful in places where we need very fast correction speed, constant output voltage, overload current limiting and short circuit protection, soft start, high voltage cut-off and low voltage cut-off, automatic bypass, no wear and tear, long life and maintenance free which is impossible with other conventional relay type or servo control stabilizers.
Since the circuit is fully solid state (no mechanical or moving parts) there will not be any wear and tear like the brush tear in servo stabilizer or relay degrading in relay based stabilizer.
FEATURES
- Direct AC-AC conversion without rectifying to DC improves the efficiency, reliability and reduces the components.
- Rapid cycle by cycle correction of output. It can correct sudden fluctuation in the line voltage.
- Output regulation of +/-1% which is impossible in conventional stabilizer.
- No distortion in output waveform.
- Automatic bypass incase of failure.
- Fully solid state. No moving part, hence more life and no maintenance.
- Compact size and light weight
- 20KHz PWM control
- IGBT power stage. Highly reliable.
- Silent operation
HIGHLIGHTS
- All protections included - low voltage, high voltage, overload and short circuit
- Discrete IGBT up to 30KVA single phase and 90KVA three phase
- Single PCB for control stage, IGBT driver section and power stage.
- Individual contactor for three phase system (optional)
- Instantaneous correction speed - over 20000V per second
- Single contactor for three phase system
- Single LCD for three phases
SPECIFICATIONS
| Electrical | Capacity | 1kVA to 30kVA (1 -Phase) 10kVA to 200kVA (3-Phase) |
| Regulator | High Frequency 20k Hz IGBT driven voltage regulation converter | |
| Input | Nominal Voltage Range | 180V – 280V (1 -Phase) 340V – 480V (3-Phase) |
| Frequency | 47– 53 Hz | |
| Output | Nominal Voltage | 220/230/240V (1 -Phase) 380/400/415V (3 -Phase) |
| Efficiency | Over 97% | |
| Regulation | +/- 1% | |
| Rate of Correction | 20000V/Sec | |
| Indication | Display | Input Voltage, Output Voltage and Load Percentage |
| Environmental | Temperature | 00 to +550 C |
| Cooling Medium | Air Cooled | |
| Protective Features | OV/UV cutoff | Automatic trip in event of High / Low / Missing Voltage, Auto reset |
| Overload & Short Circuit Protection | Through Suitable Rated input CB and Output Through Contactor | |
| Soft Switch On | This feature ensure that output voltage never Higher than Input Voltage upon Switch -on, before it commences full stabilization | |
| Automatic Bypass | Automatic Bypass will activated when there is a fault condition | |
| Surge Protections | By Input and Output filter card |