INFORMATION ON POWER FACTOR
- 1. 2005/019094/23 cc VAT REG NO: 488 0218286 TEL: 084 565 5650/011-894 6133 FAX NO: 086 601 2389 P.O.BOX 13344 LAKEFIELD, BENONI, 1525 EMAIL:sales@sizawonke.co.za BEE Rating: Level3 IS YOUR POWER FACTOR TOO LOW? ARE YOU AT YOUR LIMIT OF YOUR KVA? IF SO THEN YOU ARE WASTING MONEY NEEDLESSLY CHECK YOUR ELECTRICITY BILL TO SEE WHAT YOUR POWER FACTOR IS THE REACTIVE POWER CHARGED ON YOUR ELECTRICITY BILL IS DIRECTLY TARGETED AGAINST THOSE COMPANIES WHO DO NOT DEMONSTRATE CLEAR ENERGY USE. REACTIVE POWER CHARGED CAN BE MADE SIGNIFICANTLY SMALLER BY THE INTRODUCTION OF POWER FACTOR CORRECTION CAPACITORS, WHICH ARE A WIDELY RECOGNISED METHOD OF REDUCING AN ELECTRICITY LOAD AND MINIMISING, WASTED ENERGY, IMPROVING THE EFFICIENCY OF A PLANT AND REDUCING THE ELECTRICITY BILL. IT IS NOT ALWAYS NECESSARY TO REACH A POWER FACTOR OF 1.A COST EFFECTIVE SOLUTION CAN BE ACHIEVED BY INCREASING YOUR POWER FACTOR TO GREATER THAN 0.95. A FULL SITE SURVEY IS REQUIRED TO DETERMINE WHAT TYPE AND SIZE OF SYSTEM IS REQUIRED TO MEET YOUR CURRENT AND FUTURE NEEDS.
- 2. WHAT IS POWER FACTOR POWER FACTOR IS THE RATIO BETWEEN THE KW AND KVA DRAWN BY AN ELECTRICAL LOAD WHERE THE KW IS THE ACTUAL LOAD AND THE KVA IS THE APPARENT LOAD POWER.IT IS A MEASURE OF HOW EFFECTIVELY THE CURRENT IS BEING CONVERTED INTO USEFUL WORK OUTPUT AND MORE PARTICULARLY IS A GOOD INDICATION OF THE EFFECT OF THE LOAD CURRENT ON THE EFFICIENCY OF THE SUPPLY SYSTEM. ALL CURRENT WILL CAUSE LOSSES IN THE SUPPLY AND DISTRIBUTION SYSTEM.A LOAD WITH A POWER FACTOR OR 1.0 RESULTS IN MOST EFFICIENT LOADING OF THE SUPPLY AND A LOAD WITH A POWER FACTOR OF 0.5 WILL RESULT IN MUCH HIGHER LOSSES IN THE SUPPLY SYSTEM.A POOR POWER FACTOR CAN BE THE RESULT OF EITHER A SIGNIFICANT PHASE DIFFERENCE BETWEEN THE VOLTAGE AND CURRENT AT THE TERMINALS, OR IT CAN BE TO A HIGH HARMONIC CONTENT,POOR LOAD CURRENT PHASE ANGLE IS GENERALLY THE RESULT OF AN INDUCTIVE LOAD SUCH AS AN INDUCTIVE MOTOR,POWER TRANSFORMER,LIGHTING BALLASTS, WELDING OR INDUCTIVE FURNACE.A DISTORTED CURRENT WAVEFORM CAN BE THE RESULT OF A RECTIFIER, VARIABLE SPEED DRIVE, DISCHARGE LIGHTING OR OTHER ELECTRONIC LOADS. WHY DO I NEED POWER FACTOR CORRECTION CAPACITIVE POWER FACTOR CORRECTION IS APPLIED TO ELECTRIC CIRCUITS AS A MEANS OF MINIMISING THE INDUCTIVE COMPONENTS OF THE CURRENT AND THEREBY REDUCING THE LOSSES IN THE SUPPLY.THE INTRODUCTION OF POWER FACTOR CORRECTION CAPACITORS IS A WIDELY RECOGNISED METHOD OF REDUCING AN ELECTRICAL LOAD, THUS MINIMISING WASTED ENERGY AND HENCE IMPROVING THE EFFICIENCY OF A PLANT AND REDUCING THE ELECTRICITY BILL. HOW DOES IT WORK BY INSTALLING SUITABLY SIZED SWITCHED CAPACITORS INTO THE CIRCUIT, THE POWER FACTOR IS IMPROVED AND THE VALUE BECOMES NEARER TO 1.0 THUS MINIMISING WASTED ENERGY AND IMPROVING THE EFFICIENCY OF A PLANT.
- 3. COMPANY DETAILS CONTACT PERSON: SHAWN WADMORE/COLLEN GOVENDER COMPANY DETAILS: SIZA WONKE ELECTRICAL ADDRESS: 28 ARDEN CRESCENT, BOKSBURG, 1459 POSTAL ADDRESS: P.O BOX 13344, LAKEFIELD, BENONI, 1525 TEL NO OFFICE : 011-894 6133 CELL NO: 084-565 5650/084-947 2838 FAX NO: 086 601 2389 EMAIL ADDRESS: collen@sizawonke.co.za/sales@sizawonke.co.za WEBSITE: www.sizawonke.co.za