Rolling Contact Servo Controlled L.T Automatic Voltage Controller(Stabilizer)
Voltage Fluctuation is a comman Phenomenon in every part of the country. Inspite of the best effort, no state electricity board can ensure contant voltage to the customer because of long and inadequate distribution lines and irregular losd pattern on Distridution Transformer. Automatic Voltage Controller(Stabilizer) is an equipment to obtain constant voltage from fluctuating supply system. The industrial unit running round the clock usually face the problem of
low & high voltage . 90% of industrial load is of motor. Electric motors draw considerably high current at low & high voltage. this higher current affects the electric motors in these ways:
Higher current produce higher losses in electric motor which cause premature failure of winding
These Higher Current of Electric motor also increase the losses of Cables,Switches, Transformer & other associated equipments.
This Higher Current of Electricity motors require 15-20% higher setting of over load relay to avoid frequent tripping of motor's starter. Higher setting of over relay have very little safety margin against single Phasing and loading conditions.
With the installation of the stabilizer and maintaining 390/400 Volts, the motor will Operate smoothly Drawing 15-20% lesser current and Corresbonding the relay setting can be reduced by 15-20%. In Case single phasing occurs, the relay will trip in 40-50 second.The motor can withstand incorporated with the motor will be safe.
Description of GLOBE'S Servo Controlled Automatic Voltage Controller
GLOBE'S Servo Stabilizer primarily consist of the following:
- Linear, plus/minus type Vertical Rolling Contact Voltage Regulator
In our Regulator we are using heavy section of eletrolytic rectangular copper strip instead of copper wire to minimize the losses & increase the efficiency of equipment of equipment. We are also using selflubricating Carbon Roller Assemblies instead of ordinary carbon brushes which offers more reliability and troble 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 eletrolytic copper to minimize copper losses for getting better efficiency of the equipment.
- Electronic Control Circuit & Metal Panel
GLOBE'S Automatic Voltage Controller consists of very simple electronic control circuit for monitoring and controlling voltage, repair & maintenance of which is very easy.
