Teksai Systems

Horamavu, Bangalore, Karnataka

The  POWERGUARD    offers the most cost effective and efficient way to ensure a stable, undistorted mains supply for the vast majority of applications.   Based on the proven electronic servo design, a double wound transformer has its secondary winding connected between the incoming AC supply and the load, with the primary winding voltage controlled by a motor-driven variable auto transformer. A solid-state servo amplifier continuously monitors the output voltage of the stabiliser, and any error voltage is amplified to operate the servomotor of the variable transformer, driving its brush-gear to a point where it is injecting a voltage that will correct the supply voltage by adding or subtracting from it.   Over several  ratings from 1kVA to 1000kVA, single or three phase, incorporating full transient spike and noise suppression if required. Available with a wide selection of input voltage ranges from ±13% to ±40%   All of our products are based on our unique experience gained over thirty five years.   All our stabilisers are manufactured under strict quality controlled procedures approved to ISO 9001:2008.   Every stabiliser  complies with the IS-9815 to ensure that the quality and reliability of our products can be assured. We can confidently claim to have manufactured hundreds of AC Voltage Stabilisers and are  in service in some of the toughest environments .   Key Features   ·           High speed of response   ·           Low internal impedance   Capable of sustaining high surge currents.   ·           Efficiency  better than 98% with up to 99.5% on higher   models.   ·     Modular start of art  design and assembly.   ·        Latest  LCD micro controller with clock            ·           Soft-start  ensures low output voltage at the moment of   switching on.   ·           Soft-stop  dampens the force of impact when the variable   transformer brush gear reaches the end stop.   ·           Certified by ETDC & MSME FOR CONFORMATION AS PER IS9815 .   ·           Spike Suppression . Metal oxide transient voltage   suppression is fitted as standard. Additional protection can be provided to attenuate spikes and noise down to harmless levels   ·           Lightning Arrestors . Can be provided to protect the   stabiliser and the load from the harmful effects of induced lightning strikes to the incoming supply distribution network. IEC 61643-1 Class ll / Imax 40kA.     

Common mode interference can also be a problem and most microprocessor-based equipment will require a supply with this earth to neutral noise factor limited to less than 0.25V peak. For this reason you may be considering installing a "clean line" from the mains distribution point, but this will not always give the required level of protection. Line conditioning is the more positive solution, achieved by fitting an isolation transformer with the secondary neutral linked to earth. This isolation transformer eliminates the need for a dedicated line and at the point of linking neutral to earth the common mode interference is ZERO. Stabilisers with added interference suppression are often referred to as "Line Voltage Conditioners" or "Power Conditioners".   The  POWER SHEILD are essentially designed to attenuate Surges as defined in IEC 1000-4-5 to safe levels. The surge energy is absorbed in the circuit and dissipated and it is not diverted to ground bus etc.   The  POWER SHEILD    are essentially designed to attenuate Electrical Fast Transients as defined in IEC 1000-4-4 to safe levels. The Transient energy is absorbed in the circuit and dissipated and it is not diverted to ground bus etc.The filters are ideally suited for applications in industrial environment where many electronic fast switching devices operate at 2kHz switching frequencies and source/load impedances vary from one location to another and from one machine to another

Shielded super isolationtransformer . Switching of Electrical Equipments in industrial and commercial Generates spikes up to 10000 Volts and high frequency Noises thus disturbing the sine wave output. The spikes can cause the failure of Thyristor, Microprocessor or other sensitive devices. The High frequency noise can interface with digital – Electronic Equipments Causing data corruption erratic behaviors, loss of memories etc… Isolation Transformer eliminate such noises and attenuates the spikes to minimal values, providing complete protection against such electrical disturbances. It consists of double wound Transformers with Extremely low coupling capacitance to isolate the voltage spikes and reduce noise from mains with extremely high insulation resistance. The turn ratio of Isolation transformer is 1:1. It is generally installed with the separate machines   Double Isolation: A preferred method for noisy environments Power Lines and Transformers Power lines should be assumed to have transient voltages on them. In wiring an AC line to your electronics, employ devices which will isolate those electronics from the AC power line. Generally this will be a transformer. A transformer should be provided in the AC power connection to your electronics, even if no reduction in voltage is needed. It will be best if the transformer selected is an isolation transformer, designed especially to provide maximum isolation. If your installation is subject to severe voltage transients from the AC power line, (from variable speed motor drives, for example, or servo/spindle motor drive amplifiers), the double isolation technique illustrated here is strongly recommended.      Business and industry is more dependent than ever on sophisticated electronics. Modern electronic control devices are frequently the most cost effective way to achieve real improvement in the performance of production machines and processes. Devices such as Computer Numerical Controls (CNC), Programmable Logic Controllers (PLC), as well as the various programmable motion controllers currently available for robotics applications offer unprecedented functionality and power, and are available at attractive prices. Damage, Resets and Lost Data Unfortunately, many owners who make the decision to retrofit these control devices do not achieve the full benefit of the upgrade. If your electronics are not properly installed and protected from electrical transients, one or more of the following may occur:  ·           Physical damage to the electronics. ·           Processor resets, leading to program interruption and/or (in the case of CNC devices) loss of machine position register information.Loss or corruption of program or data L

Features Oil-Immersed  Magnetic Induction Design Step-Less Automatic Voltage Control Wide range of permissible input voltage windows (±10% to ±30%) ±1% Output Voltage Accuracy Virtually Maintenance Free Inbuilt TVSS - Transient Voltage Surge & Spike Suppression Independent Phase Control High Overload Capability Lightning Surge Protection Over / Under Voltage Indication Voltage & Current Metering Optional Main System Switch Board

POWER QUALITY AUDIT &  LOAD ANALYSIS   Most Electrical problems like ..       Tripping of Switchgears,   Blowing of Fuses,   Failure of Electronic Equipments / Drive   Cards,   Flicker,   High Energy Costs, etc…   are because of disturbances in the electrical   networks.   We specializes in the field of  Power Quality Solution . Using state of the art equipments, we  are actively conducting Power Quality Audits and Power monitoring at various Engineering  Industries. Our design exposure to drives, automations, PLCs, Motors, etc and close associations  with designers, has provided us valuable insights and knowledge in this field to  provide detailed analysis and solutions. We can provide a comprehensive range of on-site services which includes: POWER QUALITY AUDIT POWER MONITORING AND LOAD ANALYSIS HARMONIC AND REACTIVE POWER ANALYSIS TRANSIENT AND FLICKER  ANALYSIS COMPLIANCE MONITORING    

Transient noise is present to some extent in all mains supplies. High-energy voltage spikes and surges are introduced into distribution lines by the switching of equipment, especially heavy inductive loads, or by atmospheric electrical disturbance, such as induced lightning strikes. All our stabilisers are fitted with voltage surge protection, which will "clip" surges or spikes to approximately three times the supply voltage. Some equipment will be little effected by this noise, but some sensitive systems can malfunction or be harmed. These applications call for an AC Power Conditioner that can attenuate voltage spikes and noise to a harmless level as well as maintaining a stable voltage. Common mode interference can also be a problem and most microprocessor-based equipment will require a supply with this earth to neutral noise factor limited to less than 0.25V peak. For this reason you may be considering installing a "clean line" from the mains distribution point, but this will not always give the required level of protection. Line conditioning is the more positive solution, achieved by fitting an isolation transformer with the secondary neutral linked to earth. This isolation transformer eliminates the need for a dedicated line and at the point of linking neutral to earth the common mode interference is ZERO. Stabilisers with added interference suppression are often referred to as "Line Voltage Conditioners" or "Power Conditioners"