Aulten Digital

Servo Voltage Correctors

The Servo Stabilizers are ideal choice for used as Mains Voltage Stabilizer, they provide continuous and precise voltage regulation without any break in supply. AULTEN  Stabilizers are highly power efficient having less than 2% no load losses.

If your unit is suffering from low/high/unbalanced voltage, you need to install a stabilizer soon. Industrial units having acute/ higher failure rate of electrical equipments such as bulb, tubes, chokes, starter, contractor coils, motors etc., should verify that it may be due to voltage variation (esp. High voltage). You may note down hourly readings of incoming voltage for a few days continuously. If you find that input voltage is lower or higher then 230V (single phase)/ 400V (three phase) even for few hours day, then you definitely require a stabilizer.

Servo Voltage Corrector Technical Specifications

Specification2KVA to 30KVA (Single Phase)5 KVA to 1000 KVA (Three Phase)
Phase Sinle Phase Three Phase / Unbalance Type
Voltage Input 110/140/170/190-270V190/240/300/330-470V
Frequency Input50Hz50Hz
Voltage Output230 V ± 1%400 V ± 1%
Delay Output0 – 10 sec0 – 10 sec
Over Volt Output AC 250V ± 5V AC 440V ± 5V
Low Volt OutpuAC 180V ± 5VAC 311V ± 5V
By pass Protection Provided (Optional)Provided (Optional)
Over Load Trip Protection ProvidedProvided (Optional)
Cooling System Air (Cooled)Air Cooled / Oil Cooled
Full Load EfficiencyBetter Than 95%Better Than 95%
No Load EffciencyLess Than 2% of Rated LoadLess Than 2% of Rated Load
Tempreture5ºC – 40ºC5ºC – 40 C
HumidityUpto 95%Upto 95%
Floor MountingFloor MountingFloor Mounting
Class InsulationB ClassB Class


Duty Cylce   24 hr. Continuous Operstion
Wave Form DistortionNil  True to Input 
Resaponse Time Less Than 10ms
Coorection SpeedUpto 70V per sec. (Dependent on Input Voltage & Capacity)
Coorection Method Step-leess Correction using Auto Variable Transformer 
Suitability Suitable for all Power Factor Loads 
Break Down Strength & IR300V AC for 2minutes, Gretaer than 50 Mega Ohms at 500V DC 
No Load LossNo Load Loss Less than 0.4%
Type & Suitability Unbalanced Supply, 3 Phase Unbalanced  


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