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