Today, we will explain
the most (4) famous power factor
correction capacitor calculators.
Power Factor Correction Capacitors Calculators

The most (4) famous power factor correction
capacitor calculators are as follows:

First:
Arteche Reactive Power and Harmonic Resonance Point Calculator

This calculator includes (4) parts
as follows:

1 Data Entry Part
1 ENTER Transformer Data: use the
value by moving the following sliding bars:
2 ENTER Load Data: use the value by
moving the following sliding bars:

2 Results Part
After you enter the data in Data
Entry Part, the results are shown as follows:

3 Power Triangle Part
It shows the total, active and
reactive power values on power triangle after and before PF correction based
on the entered data.

4 Frequency Scan Part
It shows the curve representing
relation between the impedance response % and harmonic number and estimate
the harmonic order based on the entered data.

To get your copy from Arteche Reactive Power and Harmonic Resonance Point Calculator, please click the
link.

Second: Eaton
Power Factor Correction Calculator

This professional calculator is
available to use only online. It includes (2) main screens as follows:

The First Main Screen
The first main screen is an
Introduction for the calculator which explains the function of the calculator
and how does it works?
Function of the calculator
Are you interested in learning more
about the possibility of lowering your facilities' monthly utility bill?
Eaton's electrical products for Power Factor Correction and Harmonic
Mitigation correct poor Power Factor By entering the utility data for your
facility, the Eaton Power Factor Correction Calculator helps you to determine
how a higher Power Factor may reduce your monthly utility bill.
How Does It Work?
To calculate Power Factor Correction
for your facility, the calculator performs two main functions:
Important note:

The Second Main Screen
Click “Get Started” button on the
main screen, a new screen appears which asks you to select the location of
the capacitance in your plant distribution system from (2) available
locations:

Case#1: selection of “At the Load: Direct
Connection”
Step#1
Please select from the three
dropdown selections below:
The above three dropdown menus will
give the following selections for each type of motor:
Used for high efficiency motors and
older design (Pre”Tframe”):
`TFrame' NEMA 'Design B' Motors 1:
NEMA design C:
NEMA design D:
Wound Rotor Motors:
Induction Motor:
Step#2
after you make complete selections
from step#1 for your design case, click “Calculate Capacitance” button it
will give you the following data for the direct connect capacitance:
Note:
The Eaton’s capacitor part number is
based on across the line motor starting. For VFD applications, the capacitors
shall be filtered. For soft starters and other types of applications, please
consult Eaton.
This screen also gives you (3)
options:
Also, you have another button “Start
Over” to start a new calculation. You can also send an email to a power quality expert by
clicking the “Ask Eaton a Question?” button at any time.

Case#2: selection of “At the Service Feeder:
Bus Connection”
Step#1: Calculate required capacitance,
voltage rise, harmonics resonance, and circuit breaker size.
Select from dropdown menus for the
following data:
Note:
Calculate step#1 Results screen
The
results of your initial calculation are shown in this screen as follows:
If you
click the button “Click to See Resonance at Each Step” a new screen
named “Resonance at Each Step “ will
open which shows:
After
reviewing this screen “Resonance at Each Step” you can click the “Close and
Return” button
After
reviewing the results, use the links below to:

Step#2A: Select your rate
structure & calculate ROI
Choose
your utility rate structure from the dropdown list; the selection will be as
follows:
How Do I Choose?
Rate Type 1: KW Demand and Power
Factor Adjustment
KW billing
demand charge is based on a utilityspecified demand interval, typically 15
or 30minute, measured demand charge during the month. Energy charge related
to KW demand usually uses phrases like 0.00 per kwh first 000 kwh per KW
demand. There are 4 variations to this type of billing method as follows:
Rate Type 2
Demand and
Reactive Demand Charge KW billing demand charge is based on a
utilityspecified demand interval, typically 15 or 30minute, measured
demand charge during the month. Energy charge related to KW demand usually
uses phrases. there are 2 variations to this type of billing method as
follows:
Rate Type 3: KVA Demand Charge
Rate Type 4
Then click
“Calculate Step 2” button to calculate your potential return on investment
(ROI).
also you
can click the “Return to Step 1” button
to Update the original information you entered in step#1 or click the
“Ask Eaton a Question?” button to Send an email to a power quality expert.

Step#2B: entering the data based on your selection of utility rate structure
If you
click “Calculate Step 2” button, a new screen will open, then enter the data
required by each type of utility rate structure.
After
entering the data, use the links below to:

Step#2C: ROI Results
The
results from your calculations are shown in this screen as follows:
After
reviewing the results of this screen, use the links below to:

You can
use the Eaton power factor correction
calculator online from the following link:

Third: AccuSine Sizing Spreadsheet
Forth: SquareD (Schneider Electric)
Calculator

For the third and fourth
calculators, you can review our article “Capacitor Sizing for Power Factor Correction”.

5 Need for Power Factor Correction & Sizing Calculations

This
spreadsheet is used to determine the need for power factor correction capacitors for
existing installation by determination of the approximate savings possible
through power factor penalty reduction and loss reduction. Then the savings
are compared with the probable cost of capacitors to determine if it is
economical. it calculates also the KVAR rating required for power factor correction.
To download your
copy of this spreadsheet, please go to article “Power Factor Correction Capacitors Sizing Calculations – Part Seven”.

Subject Of
Previous Article

Article

Glossary of Power Factor Correction Capacitors


Types of Loads,
The Power
Triangle,
What is a power
factor?
Types of power
factor
Why utilities
charge a power factor penalty?
Billing Structure.


What causes
low power factor?
Bad impacts
of low power factor,
Benefits of
Power Factor correction.


How to make
Power Factor Correction?
Types of
Power Factor Correction Capacitors
Individual compensation


Group compensation,
Central compensation,
Hybrid compensation.
Summary for Power Factor Correction
Capacitors Sizing Calculations Steps


Step#1: Collect Monthly Billing Data
Step#2: Make Some Preliminary
Measurements For Current And Voltage


Step#3: Fill the Economic Screening
Worksheet


Step#4: Make Preliminary Measurements
For Harmonics
Step#5: Repeat the Economic Screening
Worksheet
Step#6: Compare the Savings with the
Probable Cost of Capacitors' Installation
Second: Design Phase
Step#1: Performing a Detailed Plant
Survey
Step#1.A:
Review the one line diagram
Step#1.B:
Take into consideration the loads that produce harmonics
Step#1.C:
collect sufficient data Inventory by using measuring instruments


Step#2: Select Economical Capacitor Scheme
Step#3: Checking the "No Load" Voltage Rise
Step#4: Select Capacitor Switching Options
Step#5: Check the Harmonic Distortion and make Harmonic
Mitigation Options
Step#6: Use the Economic Screening Worksheet again


Power Factor Correction
Capacitors Sizing Calculations Steps For
New Designs


Factors Affecting The Rated KVAR For a Capacitor
Calculation of the Capacitor KVAR Rating for Compensation at:
1Transformer
2Individual Motors


3 Calculation Of The Capacitor KVAR Rating For Buildings
And Power Plants(Group Compensation)


Harmonics Effects On Power Factor Capacitors
Harmonic Limits in Electric Power Systems (IEEE 5192014)
Options to Reduce Harmonics for PFCC
Power Factor Compensation In Case Of Harmonics


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