Stavol - Automatic Voltage Regulator
First Class Quality in Automatic Voltage Regulators (AVR)

NA Series

NM Series

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Stavol quality speaks for itself. Precision-crafted, accurate and highly efficient - these units offer a host of peerless qualities including rapid correction, zero-waveform distortion, a wide range of input voltages and a compact and lightweight construction. Stavol units are ideal for all electrical appliance/constant input voltage applications.
NA Series     * Stavol NA Brochure
Specifications
Input Voltage 50V ~ 130V / 160V ~ 240V
Output Voltage 110V / 220V + 3%
Phase Single phase
Frequency 50Hz / 60Hz
Response Time Within 0.5 sec. against 10% input voltage deviation
Efficiency Better than 90% (input voltage 180V, output voltage 220V and at rated load)
Power Factor Better than 95% (input voltage 180V, output voltage 220V and at rated load)
Ambient Temperature -5°C ~ + 40%°C
Ambient Humidity Less than 90% (relative humidity)
Temperature Rise Less than 75°C (input voltage 180V, output voltage 220V and at rated load)
Cooling System Convection-cooled (Model 3kVA ~ 10kVA Air blast)
Control System DC servo-motor
Style Standalone style
Ratings, dimensions and weight
Model *Power Output (VA) Input Voltage Output Voltage W(mm) D(mm) H(mm) Weight(kg)
I II
SVC-350NA 350 175

Single-phase

50V~130V / 160V~240V
to
110V±3% / 220V±3%

 175 160 110 3.3
SVC-500NA 500 250 175 160 110 3.5
SVC-1000NA 1000 500 195 180 135 5.5
SVC-1500NA 1500 750 215 190 145 6.5
SVC-2000NA 2000 1000 235 230 190 9.5
SVC-3000NA 3000 1500 250 285 225 14
SVC-5000NA 5000 2500 290 360 285 23
SVC-7500NA 7500 3750 330 410 330 34
SVC-10000NA 10000 5000 330 570 370 54
  • Two different voltage can be supplied simultaneously in the manner illustrated.
*Power Output (Rated Capacity in different conditions are shown on the following table
Input Voltage Output Voltage Use
160V~240V 220V I
110V
50V~130V 220V II
110V
NM Series   * Stavol NM Brochure
Specifications
Model NM Model 3-NM
Input Voltage 150V~250V 160V~250V 275V~430V
Output Voltage 220V±3%, 110V±3% 220V±3% 380V±3%
Phase Single-Phase 3-Phase 3-Wire 3-Phase 4-Wire
Frequency 50Hz / 60Hz
Response Time Within 0.8 sec. against 10% input voltage deviation Within 1 sec. against 10% input voltage deviation
Efficiency Better than 90% (input voltage 180V, output voltage 220V and at rated load) Better than 90% (input voltage 180V, output voltage 220V and at rated load) Better than 90% (input voltage 180V, output voltage 380V and at rated load)
Power Factor Better than 95% (input voltage 180V, output voltage 220V and at rated load) Better than 95% (input voltage 180V, output voltage 220V and at rated load) Better than 95% (input voltage 180V, output voltage 380V and at rated load)
Ambient Temperature -5°C ~ + 40%°C
Ambient Humidity Less than 90%(relative humidity)
Temperature Rise Less than 75°C (input voltage 198V, output voltage 220V and at rated load) Less than 75°C (input voltage 198V, output voltage 220V and at rated load) Less than 75°C (input voltage 342V, output voltage 380V and at rated load)
Cooling System Convection-cooled
(Model 3kVA ~ 10kVA Air blast)		 Air blast
(Model 3kVA : Air cooled)
Control System DC servo-motor
Style Standalone style
Insulation Resistance More than 5Mohms at DC 500V
Dielectric Strength Tested at AC 1500V for 1 min. Tested at AC 2000V for 1 min.
Ratings, dimensions and weight
Model Power Output(VA) Input Voltage Output Voltage W(mm) D(mm) H(mm) Weight(kg)
SVC-500NM 500 Single-Phase

150V~250V
to
110V±3%  220±3%

 175 160 110 3.5.
SVC-600NM 600 195 180 135 3.8
SVC-1000NM 1000 195 180 135 5.5
SVC-1200NM 1200 215 190 145 6.0
SVC-1500NM 1500 215 190 145 6.5
SVC-2000NM 2000 235 230 190 10
SVC-3000NM 3000 250 271 225 14
SVC-5000NM 5000 290 344 285 23
SVC-7500NM 75000 330 387 330 34
SVC-10000NM 10000 380 490 425 60
SVC-15000NM 15000 370 570 415 70
SVC-20000NM 20000 500 630 560 120
SVC3-3NM-220 3000 3-Phase 3-Wire

160V~250V to 220V±3%

 270 500 200 25
SVC3-6NM-220 6000 270 650 220 40
SVC3-9NM-220 9000 400 600 260 49
SVC3-15NM-220 15000 400 600 800 105
SVC3-20NM-220 20000 400 660 880 135
SVC3-30NM-220 30000 450 650 1370 190
SVC3-3NM-380 3000 3-Phase 4-Wire

275V~430V to 380V±3%

 

 270 430 200 25
SVC3-6NM-380 6000 270 580 220 40
SVC3-9NM-380 9000 400 535 260 49
SVC3-15NM-380 15000 400 600 800 105
SVC3-20NM-380 20000 400 660 880 135
SVC3-30NM-380 30000 450 500 1370 205
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