An ISO 9001 : 2008 Certified Company


Stabilizers Air Cooled Stabilizers

Automatic Voltage Stabiliser is necessary for smooth functioning

In spite of best efforts, Electricity board cannot ensure constant voltage to the consumer because of the long and inadequate distribution lines and irregular load patterns on distribution transformers. Generally, voltage is low during day time and high during night. Moreover on holidays, peak hours, rainy days and when agricultural and Industrial loads are switched off, the voltage rises sharply which is potentially dangerous to cause serious damages to your electrical appliance.

Higher voltages lead to higher current & lead to

If you install a servo stabiliser, you maintain a voltage of 390-400V & motor will operate smoothly consuming 15-20% lesser current accordingly relay settings can be reduced by 15-20%.

We at TechnoVision manufacture Servo Stabilisers as per IS: 9815


Specifications : For Capacity: 10 KVA to 300 KVA. Type: Air Cooled

Sr no Parameter Specifications
1. Input Voltage 340 to 460 VAC, 3 phase 4 wire
2. Output Voltage 400 VAC, 3 phase 4 wire within 6.5%
and provision to set to 415 VAC in future
3. Operating frequency 50 HZ +/- 3%
4. Output Voltage Regulation +/- 1%
5. Response time < 3 m sec
6. Rate of Correction 12 to 60 V / Sec
7. Efficiency > 98% at 100% load, 95% at 75% load
8. Wave form Distortion Nil, guaranteed
9. Buck Boost / Variac Class F type
10. Effect on Power Factor Nil, works at system Pf of 0.8
11. Operating Temperature 10 – 50° C
12. Duty of operation Continuous at 100%
13. Cooling Natural Air Cooling
( Provision for forced Air cooling to be made if needed / asked for )
Input UNDER / OVER VOLTAGE Contactor
Short Circuit Contactor / MCB of 10 KA
Over Load Protection MCB of 10KA
Single Phasing Preventer Contactor activated by electronic circuit
By Pass Switch Manual Rotary bypass on load or off circuit
INDICATION for Each Phase
Mains On Each phase
Under/Over Voltage Each phase
Voltmeter, Ammeter, Frequency meter VAF Multifunction meter
Alarm Optional Optional, by default and for which conditions
For trip conditions
Output voltage setting Possible to set the output voltage from the front panel
Mounting Easy moving caster wheels

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