DBW/SBW/SBW-F is a single-phase and three-phase full-automatic compensated voltage stabilizer designed to keep output voltage steady when power network voltage fluctuates or load current changes. The series supports large capacity, stable voltage adjustment, long continuous operation, and transfer between manual and automatic control.
Applications
- Large electromechanical equipment, metal processing equipment, production lines, construction devices and elevators.
- Medical equipment, light and textile industry equipment, air conditioners, household appliances and lighting applications where voltage stabilization is required.
Service Conditions
- Installation: indoor use.
- Ambient temperature: -15°C to +40°C.
- Altitude: <1,000 m.
- Relative humidity: 90%.
- Installation environment: no gas, steam, chemical precipitate, dust, dirt, explosive medium or corrosive medium that may affect insulation; no serious vibration or jolt.
Main Technical Characteristics
- Input voltage: three-phase four-wire phase voltage 220V +20% or +30%, line voltage 380V +20% or +30%; single phase 220V +20% or +30%; other voltage ranges can be made as required.
- Output voltage: three-phase four-wire phase voltage 220V and line voltage 380V; single phase 220V.
- Output voltage accuracy: 2%-5%, adjustable.
- Response speed: 1.5s when outside voltage changes by 10%.
- Waveform distortion: no additive waveform distortion.
- Protection: over-voltage, over-current, phase-failure, machine fault and phase-sequence protection.
- Control: manual or automatic start can be chosen when power is on.
- Electric strength: power frequency sine voltage 2000V for 1 min without breakdown or flashover.
- Overload capability: 2 times rated current for 1 min.
Circuit Diagram
