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Home » Products » Automatic Voltage Controllers » Automatic Voltage Controller

Automatic Voltage Controller



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Product Description

Owing to our rich industry experience and profound market understanding, we are affianced in providing a broad range of Automatic Voltage Controller. The offered controller is manufactured by our dexterous professionals using outstanding quality components with the help of advanced technology. Furthermore, this controller is used in different industries for controlling high voltage and produce steady voltage supply for various applications. We offer this Automatic Voltage Controller in various models and technical specifications as per requirements of the clients.

Features:       

 

  • Excellent performance

  • Energy efficient

  • Robust construction

  • Longer functional life

Automatic Voltage Controller
Power is a name known for reliability and continuous improvement in the field of rolling contact type automatic voltage controller, servo voltage stabilizer, Electroplating, Chemical Process Rectifiers and Special Purpose Transformers. The Systems are designed and supervised by a team of qualified engineers having more than 35 years of experience to achieve best possible quality to total customer's satisfaction.

Introduction
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.

This higher current affects the electrical motors (particularly smaller capacity motors upto 7.5 H.P.)in three ways

  • Higher current produces higher losses in electrical motors which causes 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.
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The table below compares the behavior of 5 H.P. motor at different voltages:
INPUT VOLTAGE CURRENT KVA PF
400 7.5 A 5.2 0.8
425 11% More 18% More 0.7
435 19% More 28% More 0.60
445 265 more 38% More 0.57

The table below compares the behaviour of 60 watt lamp at different voltages:
VOLTAGE CURRENT WATTS LUMINOUS INTENSITY LIFE IN HOURS
230 0.26 60 W 710 1000
240 0.27 65 W-8.3% More 820 575
250 0.28 70.6-17.6% More 943 338
260 0.29 75.4-25.6% More 1073 200
270 0.31 83.4-39% More 1213 100

Description of POWER Make Automatic Voltage Controller

Servo Stabilizer primarily consists of the following:

LINEAR, PLUS / MINUS TYPE VERTICAL ROLLING CONTACT VOLTAGE REGULATOR
In our 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 offers more reliability and trouble free performance of the equipment.

DOUBLE WOUND BUCK / BOOST TYPE SERIES TRANSFORMER
In our Buck / Boost transformer we are using CRGO lamination to minimize iron losses and 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.

ELECTRONIC CONTROL CIRCUIT AND METER PANEL
Automatic 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.

Effect of Unbalanced Input Voltage between Phase to Phase
Industrial units situated in residential / commercial area's and are 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 persist 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%.
   2. 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 motors (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 Stabilizer with Individual phase Control.

Product Code : 05


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Contact Details
POWER ENGINEERS & CONSULTANTS (REGD.)
E-731, Phase-VIII, Focal Point, Opp. Hero Cycle Ltd., Ludhiana - 141010, Punjab, India
Phone:+917533007530
Fax:91-161-2303021
Send Inquiry   Send SMS
Key Personnel
Mr. Hitesh Maheshwary (Director)
Mobile:+917533007530



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