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Automatic Voltage Controller

Balanced Type Automatic Voltage Controller

Balanced Type Automatic Voltage Controller

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 daytime and high during night hours. Moreover, on holidays, peak hours, rainy days and when the 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 up to 7.5 H.P.) in three ways: 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, switchgear, etc. incorporated with the motor will be safe.

Automatic Voltage Controller with Bypass Arrangement

Automatic Voltage Controller with Bypass Arrangement

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 daytime and high during night hours. Moreover, on holidays, peak hours, rainy days and when the 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 up to 7.5 H.P.) in three ways: 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, switchgear, etc. incorporated with the motor will be safe.

Unbalanced type Automatic Voltage Controller

Unbalanced type Automatic Voltage Controller

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 daytime and high during night hours. Moreover, on holidays, peak hours, rainy days and when the 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 up to 7.5 H.P.) in three ways: 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, switchgear, etc. incorporated with the motor will be safe.

Automatic Voltage Controller with Isolation

Automatic Voltage Controller with Isolation

We are the manufacturer of Automatic Voltage Controller with Isolation.

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 daytime and high during night hours. Moreover, on holidays, peak hours, rainy days and when the 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 up to 7.5 H.P.) in three ways: 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, switchgear, etc. incorporated with the motor will be safe.

Automatic Voltage Controller

Automatic Voltage Controller

Power Engineers is known for reliability and continuous improvement in the field of rolling contact type automatic voltage controller, servo voltage controller, automatic voltage stabilizer, chemical process rectifiers, electroplating power 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 the best possible quality and 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 daytime and high during night hours. Moreover, on holidays, peak hours, rainy days and when the 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 up to 7.5 H.P.) in three ways
  1. The Higher current produces higher losses in electrical motors which cause premature failure of winding.
  2. These higher losses of electric motors also increase the losses of cables, switches, transformers, and other associated equipment.
  3. For the smooth continuous operation of motors, overload 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, switchgear, etc. incorporated with the motor will be safe.

Power Make Automatic Voltage Controller

Power Make Automatic Voltage Controller

Servo Stabilizer / Servo Voltage Controller primarily consists of the following
  1. Linear, Plus / Minus Type Vertical Rolling Contact Voltage Regulator
    In our voltage regulator, we are using the 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.
  2. Double Wound Buck / Boost Type Series Transformer
    In our Buck / Boost transformer, we are using CRGO lamination to minimize iron losses. Coils of Buck / Boost transformer are wound with the heavy section of multi strips electrolytic copper to minimize copper losses for getting better efficiency of the equipment.
  3. Electronic Control Circuit And Meter Panel
    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.
Effect of Unbalanced Input Voltage between Phase to Phase:
  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, the setting of the motor relay is kept higher than actually required. The motor (particularly smaller motors up to 7.5 H.P.) cannot withstand this high current for a 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.
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    P. K. Maheshwary

    (CEO)

    Power Engineers And Consultants (Regd.)

    Jamalpur Colony, Ludhiana, Punjab, India

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