Owner - Mr.Raj Kumar DhawanComp.Name- Green Dot India Pvt.Ltd.

Source- www.greendotindia.comEmail-Id : info@greendotindia.com

greendotindia.@hotmail.comAddress:- G-9 Hemkunt Tower /Modi Tower,98,

Nehru PlaceNew Delhi 110 019

Power Point Of Automatic Power Factor Controller

AN IDEAL SOLUTION for POWER FACTOR CORRECTION FIRST TIME IN INDIAThis is 3rd Generation of Development in the APFC Field.Indian Market – till today was exposed to the SECOND GENERATION units that areRELAY TYPE akin to RELAY TYPE STABILISERS in Voltage stabiliser field.This is SERVO TYPE APFC CONTROLLER – CONTINUOUSLY CORRECTING TYPE.This will upgrade your concept of POWER FACTOR CORRECTION.THE UNBALANCED TYPE APFC provides IDEAL CORRECTION to INDIVIDUAL PHASES .This objective & advantage is not possible from RELAY TYPE Power Factor Panels.Your new purchase CAN BE IN THIS TYPE OF Panel. Cost wise competitive.

Automatic power FactorController

AT EXISTING INSTALLATIONS of RELAY TYPE POWER FACTOR PANEL installations – a SMALL SIZED UNBALANCED TYPE UNIT will further correct POWER FACTOR of INDIVIDUAL PHASES by correcting PF of INDIVIDUAL PHASES from AVERAGE FIGURES of SAY 0.95-0.97 to 1 & thus further saving 3-4 % on Electricity Bills.SAY ADD 10 KVAR or 20 KVAR CONSTANTLY VARIABLE CAPACITORS in INDIVIDUAL PHASES.You may call us for FURTHER DETAILS.R K Dhawan 9810117725

GREEN DOT AUTOMATIC POWER FACTORCONTROLLER

The innovative character of this APFC controller can be best understood from the anomaly with the Voltage stabiliserfield.There are three STAGES of developmentin the field of VOLTAGE STABILISERS /VOLTAGE REGULATORS. The latest is a SERVO TYPE VOLTAGE STABILISER. –that maintains Voltage of any establishment to + 1 % or so accuracies.Earlier – 1st Stage was when – a Voltage Regulator of MANUAL ROTARY TYPE wasused to adjust the voltage as is still being done on Voltage regulators for TV etc.There is ONE b4,6 or 8 POSITION rotary switch that is rotated to adjust outputvoltage. In 2nd stage of this development, RELAYPE STABILISERS like those used with Air Conditioners etc. came in. There are Steps ( 2,3,4 or 5 ) – and we call them in the Regulating Transformers that are Switched ON and OFF to keep outputvoltage to say + 10 % or so accuracy.In the 3rd Stage – the Servo stabilisers came in that maintain output voltage accuracy of + 1 % or so by using a Motor Driven Variable Transformer .

Green Dot Electric Limited has developed a Variac Based Power Factor Panel. A MotorisedVariable Transformer ( the Motorised Dimmer Dot ) is used a source of Variable Voltagethat is applied to the required value of Capacitance rated for 440 Volts or so. The varyingvoltage applied to the Fixed value capacitance-makes the Fixed value Capacitance toContinuously Variable capacitance that is used to correct the Power Factor without steps.There are no switching of Contactors or interruption of CAPACITIVE CIRCUITS and thus noharmonics get introduced. The costly harmonics filters are also avoided. In case the supplygoes off & comes in – delay is provided to give time for discharge of capacitors and then tostart again at zero voltage input from the Dimmer Dot.

Voltage Stabilizer

There is further advantage in oursystem that the power change is proportional to the square of applied voltage to thecapacitors whereas by comparison to Switching In, and or out Capacitors – the affect isonly to the first power of the capacitor size.The Power Factor Sensing relay has been developed from an advanced Micro Controller thatsenses the existing Power Factor & rotates the Variable Transformer forward or backward –increasing or decreasing the output voltage of the Variable transformer, to provide requiredvoltage across the capacitor so that the adjusted & the required power factor is alwaysmaintained with respect to ever varying load of the establishment. The LED Read out panelof the Relay Box reads Input Voltage & adjusted Power Factor