Servo controlled Voltage Stabilizer

GEESYS is specialized in manufacturing a variety of Servo Voltage Stabilizers and special purpose oil cooled transformers. One of the major products under this category is furnace transformer used in arc furnace duty applications. In case of large furnace transformers instead of radiators oil to water heat exchangers will be provided if specified. This system will help to solve the space problem in steel mills because the designs with heat exchanger occupy less space.

The other special purpose transformers manufactured by us are transformers for variable speed drive, transformers for testing application, Transformers for unit grounding and motor starting auto transformers etc. In short our company offers total solution for all kind of transformer requirement.

Are equipment downtime and lost productivity eating into company profits? Disruptive electrical noise and damaging power anomalies might be the culprit! “Clean up” dirty power with AC power line conditioners! For over 40 years, our customers have trusted our power conditioners to provide clean, stable, reliable power to their critical equipment and applications!

With ever increasing use of precision electrical equipment, the requirement for clean and regulated AC power is a must. GEESYS has designed a complete line of Power Line Conditioners to insure that your electrical equipment is protected from sags, surges, spikes, ground noise and other electrical problems that can destroy sensitive electrical equipment. Our AC Power Conditioners range from 500VA up to 1MVA and feature: tight voltage regulation, high line and ground noise attenuation, harmonic attenuation and tight load regulation.

For the most effective protection against power impulses, swells, sags, brownouts, waveform distortion and other power quality problems, count on the ferroresonant transformer technology built into our Power conditioners. These power conditioners offer the most precise voltage regulation available – as tight as ±1 percent. They are available for both hardwired installation and portable, plug-in applications

Why Neel is Preferred

The use of variable speed servo motor along with proportional type of control circuit ensures that the voltage fluctuations are corrected quickly without any oscillations at the output so as to protect the end equipment.

Hunting, oscillation, and noise generation is eliminated.

The rate of voltage correction is 2-3 times faster than our competitors.

Designed to work on Unbalanced Line & Load conditions wherein each phase is individually controlled with separate variable speed Motor & Electronic Controls.

The response time of stabilizer quick at 10 msec.

The improved efficiency of 98% compared to typical 95% available in the market will reduce running costs. Substantial saving in the electric bill (lower power losses) will pay back the cost of equipment in 2/3 years.

D.G. Set compatibility :

Special RMS sensing circuit ensures no drift in output voltage even with distorted waveform, generally observed in D.G. Set. This avoids nuisance trippings of advanced electronic equipments, otherwise observed.

Confirms to stringent defence standards JSS 55555.

Single Phase Servo Voltage Stabilizer (1 – 15) KVA

Backed by rich industry experience and knowledge, we have been able to manufacture and supply a broad range of Servo Voltage Stabilizer.

Corrects Voltage Fluctuations before it damages your Hi-tech Machines.

The purpose of voltage stabilizer is to receive a fluctuating AC voltage of low or high amplitude & deliver an almost constant voltage, at the output. The voltage variations, which have become a common phenomenon in power supply systems, cause havoc in modern advanced electronic equipments. The voltage stabilizers are meant to take care of this problem. They avoid breakdown, ensure longer life of the equipments& save in energy during high incoming voltages.

GEESYS Servo stabilizers are used to protect any critical equipment, which are effected by the fluctuation in the input supply and those equipments do not operate when they are not used at the specified voltage. Our Servo Stabilizers by providing constant output with tolerance of +/-1% makes equipments operate efficiently and hence improve their life. Also protect from being damaged due to high and low voltage.

  • This stabilizer is precisely designed for Domestic & Commercial Main Line .
  • Our provided lantern is widely used for lightning streets, parks, roads, houses and many other places.
  • Automatic Voltage Stabilizer with UV/OV cut-off and time delay arrangements are also available.
  • Fitted with transformers specially designed to take high starting current of inductive loads.
  • Fully tropicalized units with high-grade components ensure trouble-fee operation.Zener controlled triggered circuitry instantly controls output voltage
  • Fully tropicalized units with high-grade components ensure trouble-fee operation.Zener controlled triggered circuitry instantly controls output voltage

Why GEESYS is Preferred?

The use of variable speed servo motor along with proportional type of control circuit ensures that the voltage fluctuations are corrected quickly without any oscillations at the output so as to protect the end equipment.

Hunting, oscillation, and noise generation is eliminated.

The rate of voltage correction is 2-3 times faster than our competitors.

Designed to work on Unbalanced Line & Load conditions wherein each phase is individually controlled with separate variable speed Motor & Electronic Controls.

The response time of stabilizer quick at 10 msec.

The improved efficiency of 98% compared to typical 95% available in the market will reduce running costs. Substantial saving in the electric bill (lower power losses) will pay back the cost of equipment in 2/3 years.

  • Extended Input Range- 140-280/ 110-280/ 90-280 V is also available.
  • 110 V (output) can be supplied.
  • Built in spike suppressor
  • Special Input/output ranges available on request.
  • Over - Under Voltage Cutoff Protection through Contactor’s.
  • Overload / Short Circuit protection through MCCB’s.
  • Single Phase Prevention.
  • High Efficiency
  • No wave form Distortion
  • Speed of correction up to 35 V /Sec
  • Response time < 20Sec
  • Immune to Load PF & supply frequency variations
  • Power loss – 2% Max
  • Duty Cycle continuous
  • Very High Reliability
  • Easy & Simple maintenance
  • Compliance to International Standards
  • Fast(40ms) correction.
  • Field programmable servo parameters including correction accuracy using push button and LCD.
  • Phase reversal/single phasing protection.
  • Real time correction.
  • As the correction is done based on real time signal measurement, the servo will be stable even in non sinusoidal environments.
  • Field Programmable 3 stage TRIP and trip delay for low voltage, high voltage and overload.
  • Event Logging, Details of last trip is capture and stored in EEPROM. Elapsed time also displayed for evaluating the cause.
  • User friendly HMI.
  • Field programmable servo parameters and are stored in NV memory.
  • Independent output voltage setting.
  • As the servo parameters are stored in Non-volatile memory, the servo parameters will be retained forever.
  • The servo parameters like regulation voltage, high cutoff, low cutoff and overload cutoff can be configured in the field without switching off the servo and without disturbing the Hardware.
  • In the conventional analogue board all the servo parameters are configured with variable resistors. The resistance may change on ageing, which affects the servo configuration. In ServoLite all the parameters are stored digitally in the Non-volatile memory.
  • Three Stage Trip is one of the salient advantages over conventional analogue board. All the cutoffs can be configured in three stages.
  • This will be very useful in the overload cutoff. For the inductive load the starting current will be more. In the analogue board the over load cutoff is configured in such a way to accommodate the staring current. So the purpose of the overload cutoff shall not be met. But here in servo Lite, over load can be differentiated from the starting current as below.

All your electrical appliances are designed to operate at a certain voltage level. A voltage fluctuation in the main electric line can damage those devices.

GEESYS voltage stabilizer designed for such devices will prevent irreversible damage caused due to voltage fluctuation and ensures the voltage supplied from the main electric line is equivalent to the energy required to operate your devices.

PARAMETERS

SPECIFICATION

Single phase capacity  1 to 25 kva
Input voltage range 

170-270Single phase 295-465 volts three phase

195-270 Single phase 340-465 volts three phase

205-270 single phase 360-465 volts three phase

Special range As per customer requirements
Output voltage

220/230/240 V AC in single phase

380/400/415 V AC in three phase

System  Unbalanced/balanced type
Connection  Star/Delta or Star/Star
Output Voltage regulation (+/-) 1% from no load to full load
 Servo motor drive model -A AC Servo Synchronous Motor - Small
Correction speed 35 V/sec-1 ph, 60 V/sec-3 ph
Response time  Above 60 milli. sec.
Servo motor model-B DC servo motor
Correction speed  Upto 105 V/sec.
Response time  10 milli.sec
Operating frequency  47 to 53 HZ
Output waveform  True reproduction of input
Insulation  Class "B"
Short circuit percentage and period  300 % for 250 milli sec.
 Overload capacity  120 % for 1 minute
Effect of load P.F on OP Volts  Nil
Waveform distortion  Nil
Duty Cycle 100 % continuous 
Ambient  Upto 45c max above ambient Relative humidity upto 90%
System construction  As per IS:9815
Enclosure  Powder coated
Efficiency  Better than 98% (electrical consumption saved)
Environment Designed for indoor / outdoor tropical use
Mounting  On wheels
Earthing  Earthing terminals provided

We are manufacturer, supplier and Exporter of various types Servo Voltage Stabilizer and Voltage Regulators, which are used with various electrical and electronic applications.

The importance of the use of servo voltage stabilizer, whether single or three phase with sensitive electronic and electrical equipment is well known. No one likes to risk the life of their costlier home appliance and instruments, CNC Machine, electrical equipment, motor lab equipment, Medical Equipment etc, by connecting AC Voltage which is not stabilized and dips at one point of time and at other point of time rises to very high value.

These are designed using premium quality raw material and are known for low power consumption, heat reducing capacity, and trouble free operation. Further, we also offer customization facility on the products as per the client’s specifications.

Our Single Phase Air Cooled Servo Voltage Stabilizerhave been designed to give a constant output voltage for single applications with stability +- % of the efficiency has been maintained a s high as 98% or more.

Output voltage stability of these Single Phase Air Cooled Servo Voltage Regulators allows the optimum drawing of the current by load and as such no extra electrical power is consumed at low as well as high voltage. Therefore use of these servo type automatic voltage regulators saves power and reduces MDI.

We are manufacturer, exporter and supplier of industrial servo voltage stabilizers & servo voltage regulators which are used for various applications. They can be made in 2 designs namely balanced type for 3 Phase load applications &Unbalanced type for 1 or 3 phase mixed load applications.

How does this Servo Voltage Stabilizer & regulator Operates ?

These types of Servo Voltage Stabilizer & regulator essentially employ a Solid-State circuit, which controls the Servo Motor. The motor is mechanically coupled to the arm of a continuously variable Auto Transformer (Variacs) that feeds to the primary of a series control Buck-Boost transformer. The servo stabilizer / regulator output voltage is then compared with the reference voltage and the resultant error signal controls the Servo Motor providing true proportional control systems rather than On/off circuits.

Types of servo voltage stabilizers & servo voltage regulators ?

UNBALANCED TYPE: Widely accepted design to suit various conditions. All the phase/s are independently sensed & corrected. Suitable for both balanced/ unbalanced loading & incoming voltage

BALANCE TYPE: One phase (master) sensed & all the 3 corrected in accordance to the master phase. Suitable for balanced loading & balanced incoming voltage only (not suitable for unbalanced loading/unbalanced input voltage)

Fields of Applications for these servo voltage stabilizers & servo voltage regulators :

The stabilizers and regulators which are based on servo technology are virtually required at all such places where controlled and constant voltage is one of the most important ingredients. Like Hospitals, Laboratories, various life saving& testing equipments, pharmaceuticals, Research Institutes, Defense, Telecommunications, Air Conditioning, Data Processing, Electronics based Industrial, Educational institutes, Food processing units, Paper plants, Footwear and Leather industrial, Cement Plants, Textile Industries, Molding units, Hotels, Farms houses, Offices and residences/ housing apartment etc.

PARAMETERS

SPECIFICATION

Three phase Air Cooled  3 to 150 kva
Input voltage range 

170-270Single phase 295-465 volts three phase

195-270 Single phase 340-465 volts three phase

205-270 single phase 360-465 volts three phase

Special range As per customer requirements
Output voltage

220/230/240 V AC in single phase

380/400/415 V AC in three phase

System  Unbalanced/balanced type
Connection  Star/Delta or Star/Star
Output Voltage regulation (+/-) 1% from no load to full load
 Servo motor drive model -A AC Servo Synchronous Motor - Small
Correction speed 35 V/sec-1 ph, 60 V/sec-3 ph
Response time  Above 60 milli. sec.
Servo motor model-B DC servo motor
Correction speed  Upto 105 V/sec.
Response time  10 milli.sec
Operating frequency  47 to 53 HZ
Output waveform  True reproduction of input
Insulation  Class "B"
Short circuit percentage and period  300 % for 250 milli sec.
 Overload capacity  120 % for 1 minute
Effect of load P.F on OP Volts  Nil
Waveform distortion  Nil
Duty Cycle 100 % continuous 
Ambient  Upto 45c max above ambient Relative humidity upto 90%
System construction  As per IS:9815
Enclosure  Powder coated
Efficiency  Better than 98% (electrical consumption saved)
Environment Designed for indoor / outdoor tropical use
Mounting  On wheels
Earthing  Earthing terminals provided

Three Phase Servo Voltage Stabilizer (3 – 2000) KVA

We are manufacturer, supplier and Exporter of wide spectrum of Servo Voltage Stabilizer and Voltage Regulators, which are used with various electrical and electronic applications.

We offer high grade Three Phase Air Cooled Servo Voltage Stabilizer, which are impeccably designed by us in our sophisticated infrastructure using latest technology. These types of Voltage Stabilizer are extensively used to control the voltage fluctuation with solid state electronic circuitry. Air cooled stabilizers and regulators developed by us are automatic line voltage corrector, which use synchronous motor in close loop control. We offer these three phase stabilizers & regulators at very competitive prices.

Our Three Phase Air Cooled Servo Voltage Stabilizerhave been designed to give a constant output voltage for single applications with stability +- % of the efficiency has been maintained a s high as 95 % or more. We offer various types of automatic voltage controller and servo stabilizers which includes balanced type and unbalanced type automatic voltage controller and regulators.

  • Extended Input Range- 140-280/ 110-280/ 90-280 V is also available.
  • 110 V (output) can be supplied.
  • Built in spike suppressor
  • Special Input/output ranges available on request.
  • Over - Under Voltage Cutoff Protection through Contactor’s.
  • Overload / Short Circuit protection through MCCB’s.
  • Single Phase Prevention.
  • High Efficiency
  • No wave form Distortion
  • Speed of correction up to 35 V /Sec
  • Response time < 20Sec
  • Immune to Load PF & supply frequency variations
  • Power loss – 2% Max
  • Duty Cycle continuous
  • Very High Reliability
  • Easy & Simple maintenance
  • Compliance to International Standards
  • Fast(40ms) correction.
  • Field programmable servo parameters including correction accuracy using push button and LCD.
  • Phase reversal/single phasing protection.
  • Real time correction.
  • As the correction is done based on real time signal measurement, the servo will be stable even in non sinusoidal environments.
  • Field Programmable 3 stage TRIP and trip delay for low voltage, high voltage and overload.
  • Event Logging, Details of last trip is capture and stored in EEPROM. Elapsed time also displayed for evaluating the cause.
  • User friendly HMI.
  • Field programmable servo parameters and are stored in NV memory.
  • Independent output voltage setting.
  • As the servo parameters are stored in Non-volatile memory, the servo parameters will be retained forever.
  • The servo parameters like regulation voltage, high cutoff, low cutoff and overload cutoff can be configured in the field without switching off the servo and without disturbing the Hardware.
  • In the conventional analogue board all the servo parameters are configured with variable resistors. The resistance may change on ageing, which affects the servo configuration. In ServoLite all the parameters are stored digitally in the Non-volatile memory.
  • Three Stage Trip is one of the salient advantages over conventional analogue board. All the cutoffs can be configured in three stages.

This will be very useful in the overload cutoff. For the inductive load the starting current will be more. In the analogue board the over load cutoff is configured in such a way to accommodate the staring current. So the purpose of the overload cutoff shall not be met. But here in servo Lite, over load can be differentiated from the starting current as below.

PARAMETERS

SPECIFICATION

Three phase Air Cooled  3 to 2000 kva
Input voltage range 

170-270 Single phase 295-465 volts three phase

195-270 Single phase 340-465 volts three phase

205-270 single phase 360-465 volts three phase

Special range As per customer requirements
Output voltage

220/230/240 V AC in single phase

380/400/415 V AC in three phase

System  Unbalanced/balanced type
Connection  Star/Delta or Star/Star
Output Voltage regulation (+/-) 1% from no load to full load
 Servo motor drive model -A AC Servo Synchronous Motor - Small
Correction speed 35 V/sec-1 ph, 60 V/sec-3 ph
Response time  Above 60 milli. sec.
Servo motor model-B DC servo motor
Correction speed  Upto 105 V/sec.
Response time  10 milli.sec
Operating frequency  47 to 53 HZ
Output waveform  True reproduction of input
Insulation  Class "B"
Short circuit percentage and period  300 % for 250 milli sec.
 Overload capacity  120 % for 1 minute
Effect of load P.F on OP Volts  Nil
Waveform distortion  Nil
Duty Cycle 100 % continuous 
Ambient  Upto 45c max above ambient Relative humidity upto 90%
System construction  As per IS:9815
Enclosure  Powder coated
Efficiency  Better than 98% (electrical consumption saved)
Environment Designed for indoor / outdoor tropical use
Mounting  On wheels
Earthing  Earthing terminals provided