We are one of the leading manufacturers and OEM suppliers of Servo Voltage Stabilizers (Oil cooled, Three
Phase) in India. Servo Voltage Stabilizers work on servo-mechanism or negative feedback mechanism, and as
the name implies, it uses servo motor(s) to achieve the voltage correction and both the Transformers are fully
immersed in Oil (acting as coolant). These are mainly used to provide regulated output with optimum voltage
accuracy of ±1%. A servo Stabilizers incorporates servo motor, auto Transformers, buck boost Transformers, motor
driver and control circuitry as essential components.
In case of a three-phase balanced type, one servo motor is coupled with three auto Transformers such that
stabilized output is provided during fluctuations by adjusting the output of the Transformers. In an unbalanced
type of servo Stabilizers, three independent servo motors are coupled with three auto Transformers and three
separate control circuits.
Only indigenously manufactured premium grade Servo Kit is used in our servo voltage Stabilizers.
Power handling capacity 25 to 1000 KVA
Input Voltage Range
| Super Wide range | 190 - 470V |
| Extra Wide range | 240 - 470V |
| Wide range | 300 - 470V |
| Medium range | 330 - 4700V |
| Narrow range | 170 - 260V |
Output Voltage: 400V ±1%.
All the models are available in Aluminium and Copper winding.
Send Enquiry
© 2017 DONUT TECHNOLOGIES All rights reserved. | website Designed and Promoted By - keywordindia.com