Servo Voltage Stabilizer

SERVO CONTROLLED AUTOMATIC VOLTAGE STABILIZER (AVR): 'STERCO' Servo Voltage Stabilizer is a revolutionary product in the field of voltage stabilization. It is specially built for constant voltage output for the areas where voltage supplies is fluctuating and damages the sophisticated equipments. This system keeps in check voltage variations by fast rate of correction. Servo Controlled Voltage Stabilizer is designed for working on single phase as well as three phase AC supply. These stabilizers are manufactured for continuous use at full load, and are suitable for Balanced & Unbalanced load. We are also renowned among the top-notch Servo Stabilizer Manufacturers in India.

Description
'STERCO' (AVR) consists of the followings:

• Continuously variable Voltage Regulator.


• Electrolytic Copper Wound Buck Boost Transformers duly vacuum impregnated.


• Electronic Control Circuit and meter panel.


• Synchronous motor is controlled by thyristors which are controlled by CMOS integrated circuit. Thus the whole system is quite solid state.

The Buck Boost Transformer and Variac are oil cooled housed in same or separate sheet metal tanks. Radiators provided for effective cooling if required. The transformer is incorporated with core of high grade Electrical Silicon steel Lamination to minimize the losses.

Applications
The system keeps in check voltage variations by fast rate of correction. It is designed for working on single phase as well as three phase AC supply. These stabilizers are manufactured for continuous use at full load, and are suitable for Balanced & Unbalanced load.

Advantages

Energy Saving.

Improved Power Factor.

Lower Break Down for Electrical Equipment.

100% Depreciation.

End product with uniform quality.

Technical Specifications

Type	Single Phase	3 # Balance Load/ 3 # Unbalance Load
Input Voltage Range	160 V - 260 V AC	300 V - 460 V AC
KVA Rating Capacity	0.5,1,2,3.15,5,8,10,16,20,25,31,5,40,50,100,125,150,200,300 & 350 KVA	3,5,10,15,20,25,30,40,50,80,100,125,150,200,300,400,500,600,1000 upto 2000 KVA
Output Voltage	225V - 230V AC Settable	400V - 415V AC Settable
Rated Operating Frequency	50 HZ	50 HZ
Metering		72 mm to 100 mm Dial Accuracy 1.5 Voltmeter with Selector switch to indicate Input and Output Voltage.
Input / Output Connection Up to 2 KVA
Over 2 KVA		15 Amps. Plug and socket terminal for Input and Output Connections
Indicator	Mains 'ON' pilot lamp on front panel, Low, and High limit indicator of Dimmer on front panel.	Mains pilot lamp on each phase low and High limit indicator of Dimmer on front panel. Oil indicator will be there
Manual Control	Provision for manual control of output.	Provision for manual conrol of output on each phase.
Cooling
Air Cooling	0.5 - 10 KVA	2.5 - 30 KVA
Oil Cooling	15 - 350 KVA	40 - 200 KVA
Output Voltage Regulation	+- 1 %	+- 1 %
Rate of Correction	20 Volts/ Second	30 Volts/ Second
Efficiency	More than 95%
Duty Cycle	-------------------100%-------------------
Specification	IS : 9815 (Part1) / 1994 (Reaffirmed 1999)

Additional Facilities can be provided at an Extra cost :

Low/ High Voltage Protection

Single Phase Preventor

Overload Protection

By Pass Switch

Reverse Phase Preventor

Manual Voltage Stabilizers are also available against specific requirements.

Note : We reserve the right to change design and modify specifications of the discretion of our technical department.