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 -5C ~ + 40%C
Ambient Humidity Less than 90% (relative humidity)
Temperature Rise Less than 75C (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
110V3% / 220V3%

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 220V3%, 110V3% 220V3% 380V3%
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 -5C ~ + 40%C
Ambient Humidity Less than 90%(relative humidity)
Temperature Rise Less than 75C (input voltage 198V, output voltage 220V and at rated load) Less than 75C (input voltage 198V, output voltage 220V and at rated load) Less than 75C (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
110V3%  2203%

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 220V3%

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 380V3%

 

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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