Servo Voltage Stabilizers

Servo Voltage Stabilizers

Isolation Transformer

AVC Inner View

Carbon Roller


  • Power Saving (Reduction in Power Bills)
  • Reduction in Breakdown of Electrical/Electronic Equipments
  • Reduction in MDI
  • Improvements in Power Factor (at Higher Voltage)
  • Uniform Quality/Lesser Tripping
  • Improvement in Quality of End Products
  • Better Efficiency in Plant
  • Immeasurable benefits
  • Depreciations per Income Tax Act (In India Only)
Input VoltageCurrentKVAPF
4007.5 A5.20.8
42511% More18% More0.7
43519% More28% More0.61
44526% More38% More0.57

Effect on 5HP Motor

Automatic Voltage Controller/Servo Controlled Voltage Stabilizer

Description of Servo Controlled Automatic Voltage Controller:

K.s. Power's Servo Stabilizer is manufactured as per standard quality rules and primarily consists of the following:

1. Linear Plus/Minus Type Vertical Rolling Contact Voltage Regulator

In our regulator we are using heavy section of electrolytic grade rectangular copper trip instead of copper wire to minimize the losses & increase the efficiency of equipment. We are also using self lubricating Carbon Roller Assemblies instead of ordinary Carbon Brushes which offers more reliability and trouble free performance of the equipment.

2. Double Wound Buck/Boost Type Series Transformers

In our Buck/Boost Transformer we are using CRGO lamination to minimize iron and coils of Buck/Boost Transformer are wound with heavy section of multi strips electrolytic copper to minimize copper losses for getting better efficiency of the equipment.

3. Electronic Control Circuit and Meter Panel

K.S. Power's Automatic Voltage Controller consists of very simple electronic control circuit for monitoring and controlling voltage, repair and maintenance of which is very easy. The regulator and Buck/Boost transformer are oil cooled, housed in same or separate sheet steel tanks. Radiators are provided for effective cooling. The coils of voltage regulator & Buck/Boost Transformers are vacuum impregnated and oven dried as per IS.

VoltageCurrentWattsLuminous IntensityLife in Hours
2000.2554 W6902000
2300.2660 W7101000
2400.2765 W-8.3% More820575
2500.2870.6-17.6% More943338
2600.2975.4-25.6% More1073200
2700.3183.4-39% More1213100

Effect of High Voltage On 60 Watt Bulb

Automatic Voltage Controller/Servo Controlled Voltage Stabilizer

Description of Servo Controlled Automatic Voltage Controller:

Loss Comparison of K.S. Power's Mark Regulator & Conventional Make Regulator

CapacityK.S. Power Make Roller Type Regulator LossesConventional Make Carbon Brush Type Dimmerstat Losses
60 A575 W1050 W
75 A730 W2055 W
100 A900 W3105 W

Table below gives approximate quantitative advantages of Automatic Voltage Controller at various fluctuation levels:

% Reduction in Breakdown Possible
Input Voltage Variation
Motor Load Below 10 HPLighting LoadApprox. Power
Motor Load Below 10 HP
Saving Possible
Lighting Load
380-400 VoltsNilNilNilNil & No Servo
Stabilizer Require
380-420 Volts5%10%3%5%
380-440 Volts10%20%5%10%
360-460 Volts40%40%7%20%
360-480 Volts60%60%10%30%
340-500 Volts80%80%15%37%