Surya Electro Controls is known for reliability and continuous improvement in the field of rolling contact type automatic voltage controller, servo voltage controller, automatic voltage stabilizer The systems are designed and supervised by a team of qualified engineers having more than 30 years of experience to achieve best possible quality and total customer's satisfaction.

Inspire of best efforts, no state electricity board can ensure constant voltage to the customer because of long and inadequate distribution lines and irregular load pattern on distribution transformers. Generally Voltage is low during day time and high during night hours. Moreover on holidays, peak hours, rainy days and when agricultural and industrial load is switched off, the voltage rises sharply which is more dangerous.

• Higher current produces higher losses in electrical motors which cause premature failure of winding.
• These higher losses of electric motors also increase the losses of cables, switches, transformers and other associated equipment.
• For smooth continuous operation of motors, over load relays are usually set at 20% higher setting.

With the installation of the stabilizer and maintaining 390/400 volts, the motor will operate smoothly drawing 15 - 20% lesser current and correspondingly the relay setting can be reduced by 15 - 20%. In case single phasing occurs, the relay will trip in 40 - 50 seconds. The motors can withstand the high current for this period and will be safe. Also, the relays, contactors, switchgears, etc. incorporated with the motor will be safe.

Servo Stabilizer / Servo Voltage Controller primarily consists of the following

In our voltage regulator we are using heavy section of electrolytic grade rectangular copper strip instead of copper wire to minimize the losses & increase the efficiency of equipment. We are also using self lubricating carbon roller assemblies instead of ordinary carbon brushes which offer more reliability and trouble free performance of the equipment.

In our Buck / Boost transformer we are using CRGO lamination to minimize iron losses. Coils of Buck / Boost transformer are wound with heavy section of multi strips electrolytic copper to minimize copper losses for getting better efficiency of the equipment.

Automatic Servo Voltage Controller consists of very simple electronic control voltage circuit for monitoring and controlling voltage, repair & maintenance of which is very easy. The regulator and Buck / Boost transformer are oil cooled, housed in same or separate sheet steel tanks. Radiators are provided for effective cooling. The coils of voltage regulator & Buck / Boost Transformers are vacuum impregnated and oven dried as per IS.

Industrial units situated in residential / commercial areas and not having their own distribution transformer, have the problem of unbalance input voltage between phase to phase and many have the problem of frequent failure of three phase motors. Normally unbalanced input voltage problem persists for few hours a day and will have the following effects on the three phase motors:

• 1.With 5% Unbalanced Input Voltage between phase to phase - the LOAD will be unbalanced and the capacity of the motor reduces by 40%.
• 1.Consumption of the three phase motor will increase by 20 - 25%.

To avoid frequent tripping of the overload relays and to continue production, setting of motor relay is kept higher than actual required. The motor (particularly smaller motors upto 7.5 H.P.) cannot withstand this high current for long time and in most cases the motor burns out and this high current flows through the relays, contactors, cables etc. resulting in failure of the same and in some of the cases may cause fire also.

The best option for such Units having Unbalanced input voltage, is to install servo voltage stabilizers and servo voltage controller with individual phase control.

• higher current produces higher losses in electrical motors, which causes premature failure of winding.
• it increases the losses of electric motors and other associated equipments.
• this higher current of electric motor requires higher setting of overload relay to avoid frequent tripping of motors. Higher setting of overload relay has very little safety margin against single phasing & mechanical faults. With installation of stabilizer, the higher current drawn by motor on account of voltage variation is eliminated.
• the overload relay can be set as per requirement of motor load, which will reduce the motor failure rate considerably.
• we are one of the leading servo controlled voltage stabilizer manufacturers and suppliers based in india. Our servo voltage stabilizer is especially designed to be energy efficient due to less copper and iron losses, resulting in substantial savings to the users over the years. We offer lt servo voltage stabilizers from 20 kva to 3000 kva and h.t. Servo stabilizers from 20 to 5000 kva. choice of voltage rangethe stabilizer with input 330-460v is ideally suitable for all industrial purposes even if the voltage variation may be much higher. With this model even at 300v input, you will correspondingly get output voltage of 365 v and 435vrespectively, which being of very short duration duting the year, will not be harmful. applicationsthough stabilizers are useful for any kind of application, they are most suitable for 24 hours continuous process plants where breakdowns due to fluctuations result in heavy financial losses. Some of these are multiplexes, call centers, software parks, furnaces, test rooms, research stations, paper industries, electroplating plants, electrolytic processes, hotels hospitals, tea gardens, defence installations, space research centers, steel plants, cement factories, glass works, chemical industries, plastic processes etc. installationthe stabilizer can be installed at the mains or section wise after the ltacbocb. Installation needs cables of suitable capacity to input from acbocb and from output to distribution panel. Over voltage signal is provided which can be used for tripping acbocb in case voltage goes beyond specified level. advantages
  • reduced failure rate of electrical equipments
  • increased productivity
  • improvement in pf and reduction in mdi if incoming voltage is normally higher
  • depreciation 60% from income tax
  • reduction in power consumption
  • lesser rejection of end product
  • uniform quality of end product
  • superior features of surya's make stabilizer surya's make roller type regulator
    • continuous 100% dutycycle.
    • life at full load is 10-15year's. (l.t.)
    • 7 years unconditional guarantee
    • negligiblelosses infullboost and buckconditions.
    • conventional make with carbon brush regulator
      • suitable for only 30-40% duty cycle.
      • maximum life is 2-3 year when operated at full load.
      • nomral guarantee for one year.
      • max. Losses at full boost and buck condition.
      • .