Automatic Voltage Regulator
The Automatic Voltage Regulator is the Servo electric voltage stabilizer, the design principle of it comprises transformers and compensation coils and a servo motor.When supply voltage fluctuations occur, the system automatically drives the servo motor to change the position of the carbon brush to adapt the input voltage to output voltage mechanically, and to change the voltage to the desired level, which is ensuring a continuous, smooth and very stable output voltage.
Our DSBW series Servo motor controlled AVR can deliver a desirable voltage value to meet various applications in the world.it has a high capacity and is ideal for high-inrush current applications. The servo electronic designs are based on conventional and reliable technology. The buck boost transformers are copper made cylindrical type, integrated with compensation coils. All transformers assemblies/windings manufactured, or used, conform to relevant IEC specifications.
capable of handling larger load capacities.
suitable for the load with high-inrush current start-up.
suitable for inductive load applications.
surge arrestor: Class II4P 40KA, to protect loads against high spikes and transient voltage
independent phase control: maintains each phase voltage stable irrespective of load unbalance.
General Specification Datasheet of 3 Phase Automatic Voltage Regulator
| MODEL NOS. | DSBW-V380-XS15-3P100 |
|---|---|
| - Phase: | Three Phase, 4 Wire (3P+N+GE) / 3 Wire (3P+GE) |
| - Power Capacity: | 21 Model Ratings: 20kVA,30kVA,45kVA,60kVA,75kVA,100kVA,120kVA,150kVA,200kVA,300kVA,400kVA,500kVA,600kVA,800kVA,1000kVA,1250kVA,1500kVA,1600kVA,1800kVA & 2000kVA & 3000kVA |
| - Topology: | Servo motor controlled Voltage Stabilizer |
| INPUT | |
| - Nominal Voltage Ratings Three Phase: | A series 380V, B series 400V, C series 415V, D series 440V & E series 480V *Select one voltage value* |
| - Voltage Range Options: | XS15:Nominal voltage±15%, S20: Norminal voltage ±20%, M25:Norminal voltage±25% |
| - Frequency: | Nominal 50Hz±5 (60Hz Optional) |
| OUTPUT | |
| -Voltage: | Three Phase 380V/220V -400V/230V-415V/240V/480V(L-L) /277V(L-N)±2% |
| -Voltage Accuracy: | default ±2% |
| - Frequency: | 50Hz/60Hz±5 |
| - Response Time: | 100ms |
| - Regulation Speed: | 20V per second |
| - Front Panel Display: | LCD Digital Display: Input Voltage & Output Voltage, Amperes, Frequency, Power meters,Date/Time |
| - Output Waveform Distortion: | Nil |
| - Efficiency: | ≥98% |
| - Overload Capacity: | 150% 1min, 200% 1sec. |
| - Surge Protecion : | Class II, 4P 40KA |
| - Output Time Delay: | Stabilize voltage before output to protect equipment from high or low voltage surges |
| - Circuit Breaker: | Input circuit breaker & output contactor |
| -Manual Maintenance Bypass Switch: | Optional, practiced when undertaking maintenance on Stabilizer |
| -Protection： | Over/Low Voltage Protection,Overload Protection,Phase Loss Protection |
| - Ingress Protecion | IP20 (Indoor) |
| -Relative Humidity: | 0-95% (non-condensing) |
| -Working Temp.: | -10℃ - 45℃ |
| -Warranty: | 2 Years / 24 Months from date of supply |
| -Certificate: | CE. Reference Standards EN60204, EN61000 |
| -IP Ratings: | Enclosures to IP20 (NEMA 1 Style), IP54 Enclosures available as optional. |
- IP 54 Ingress Protection – NEMA 3: adaptable to outdoor use
- output contactor comes as standard , output circuit breaker supplied as an alternative to the output contactor
- communication Interface: RS485/RS232, Mudbus Protocol
- manual Maintenance Bypass Switch (MBS): A bypass device where requested can be fitted, this feature is practiced when mains utility in failure or undertaking maintenance on AVR.
- other permissible input voltage range and output voltage values are available to special requests.
Customized Option
- Top Cable Entry
- Enclosures fitted with 100mm plinth other than castors
Special Notes
Stabilizers are also available offering Step up or Step down voltage conversion. For example, Step down: Three phase 415V(L-L) / 240V (L-N)
to 208V(L-L) /120V(L-N) or Step-Up voltage conversion – 208(L-L) /120V(L-N) to 415V(L-L) / 240V (L-N).
