Author Archives: Chakaravarthi

Dr. InPhase Edu Series – How to use Krykard ALM-32/33/35 to carry out Power Quality Study

Hello Everybody. This is Dr. InPhase!!! In this dual part series I’ve already presented How to use Fluke 434-Series II for carry out Power Quality Study. In second part I’m going to walk through on How to use Krykard ALM-33/32/35 for carrying out Power Quality Study to record and analyze various Power Quality factors like Harmonics, Unbalance, Power Factor and so on.

KRYKARD ALM 32/33/35

  • To measure and record RMS voltage, current, power parameters in an electrical network.
  • To record the variations (power parameters) in the electrical network.

BASIC OPERATIONS

– Press to power up or power down the Krykard ALM-32/33/35 Analyser. The home screen shows RMS waveform for voltage and current.

DATE AND TIME

  • In home screen Press Configuration Button
  • Select Date/Time in Configuration screen
  • Press Enter button
  • Make the changes in DATE & TIME by using Navigation keys & Press ENTER.
  • Press Return button after the changes are made.

LANGUAGES & PHASE COLORS

  1. Measuring results belongs to different phases are presented with individual colors. Every region in the world having different sets of color code for the Phase sequences.
  2. Here we proceed with Indian region.
  3. The following steps are configuring the Phase Colors as well as Languages also.

FOR LANGUAGE

  • Press Configuration button
  • In Configuration screen, each Function keys belongs to different language.
  • In this screen the selected Function key belongs to English language.
  • Krykard ALM-32/33/35 offers 26 regional languages along with English.

FOR PHASE COLOR

  • Press Configuration button and Select Display
  • Press 2nd Function key for the Colors option
  • In this screen, we can change the voltage, current color coding of Phase & Neutral as per the region by using of Navigation keys.
  • If we select 1st Function key, there will be an option for Brightness adjusting. Brightness can be adjusted as per the requirement using Navigation keys.

  • If we select 3rd Function key, an option for automatic Display shutdown. Select Never/Automatic as per the requirement.

  • If we select 4th Function key, an option for Night mode. Activate/Deactivate as per our requirement.

WIRING SYSTEM CONFIGURATION

  1. Krykard ALM-32/33/35 has a several preprogrammed wiring setup of electrical system/equipment.
  2. Based on the system configuration like Three phase, Two Phase, Single Phase we can choose accordingly in the analyser also.
  3. The following steps are configuring the available wiring setup of Krykard ALM-32/33/35 for the electrical system which we want to analyse.

  • Press Configuration Button
  • Select Electrical Connection
  • Select the appropriate Configuration from the list of connections.
  • Available connections are- 3 Phase 3 Wire, 3 Phase 4 Wire, Single Phase 2 Wire, Split Phase 3 Wire.

ALM-33 CONNECTION CONFIGURATION

  • Connection example shown in the above picture.
  • Analyser we could use to connect in HT side (like 11kV, 33kV), LT side (like 415V, 690V) by taking CT and PT reference from the Breaker panel (ex. VCB).
  • We can analyse the load in feeder wise as well as connecting the particular load also (like VFD, DC Drive, etc.)

PT & CT PROBE SELECTION AND CONFIGURATIONS

  • This probe for connecting the PT reference side or PRIMARY side or Direct BUS BAR SIDE.

  • Press Configuration Button
  • Select Sensors and ratios and press Enter
  • Select the corresponding Function key for voltage (U)
    • 110V is common PT secondary voltage.
    • Select Ratio set-up and press Enter for Change PT ratio as per the Primary Voltage by using navigation keys.
    • Connecting in Live BUS BAR side PT ratio should be 3U 1/1
    • Example: Connecting in 33kV side VCB/Breaker side means PT ratio will be 0033.0k/0110.0
  • Press Enter after  the changes are made.
  • Press Return button after the changes.

  • This probe is for connecting in Measuring or Protection CT

  • The pictures show how to connect the probe in to the CT reference side.

  • Press Configuration Button
  • Select Sensors and ratios and press Enter
  • Select the corresponding Function key for current (A)
  • Select Ratio set-up 3A.
  • Press Enter after the changes are made (CT Ratio).
  • If we select Ratio set-up A1+A2+A3, for changing the CT ratio for individual phase.
  • For Neutral sensor, it is not available in ALM 33; By selecting 3 Phase 4 Wire configuration there will record Neutral Voltage & Current readings in virtual which we can by the display also.
  • Press Return button (Back to the previous screen)

 

  • This probe for connecting to the PRIMARY side or direct BUS BAR side.

  • Press Configuration Button
  • Select Sensors and ratios and press Enter
  • Select the corresponding Function key for current (A)
  • Select Ratio set-up 3A 1/1.
  • Set the ratio for 65A to 6500A. It can measure up to 1000A.
  • Press Return button (Back to the previous screen)

*After this above setup, the Analyser is ready for measurement.

MEASURING PROCEDURE

  1. After doing the initial setup now the Krykard ALM-32/33/35 is ready for taking the measurements.
  2. The following steps are for checking the connection and then proceed to start the measurement.

PHASE SEQUENCE

* The figures below explained for the correct connection setup.

This is the first thing should check for the connection verification.

  • After the connection is made, Press Waveform display Mode key the above screen will appear.
  • Use Navigation keys to see Voltage (3U) or Current (3A) waveform.
  • Select corresponding Function keys to see THD, CF (Crest Factor) and all.
  • Select this function key for Vector view of Current & Voltage (Explained detailed in below)
    • The below two screens are vector view of Voltage and Current.
    • In 3 Phase 3 Wire configuration, the directions should be clockwise and order should be Red-Yellow-Blue (RYB).

  • In 3 Phase 4 Wire configuration, the directions should be clockwise & order should be Red-Yellow-Blue (RYB)

  • Compare the Amperes and with Analyser and the connected Breaker panel side or Load side.
    • Check the amperes in the Multifunctional meter or Ammeter of the Breaker panel.
    • If the Ampere is not matching with the load side check the CT ratio fixed. If it is wrong change it accordingly.
  • if amperes match check the Directions of vector as per the above diagrams.
    • If the directions are not proper check the CT Probe direction in the breaker panel.
  • Both Amperes should match.

POWER & ENERGY

  • Press  Power parameter mode key, the above screen will appear.
    • Check the Actual Power (W), Apparent Power (VA),
    • Both values should be in Positive (+ve).
    • If the values are Negative (-ve) invert the CT probe direction fixed in the breaker panel.
    • Check for the Phase Sequence/CT probe direction in Breaker panel.

HARMONICS

  • Press Harmonics mode key, the above screen will appear.
  • We can see the harmonics in % and in terms of Amperes for voltage as well as current by using navigation keys in the screen.
  • Use corresponding Function key for seeing Voltage Harmonics (U) / Current Harmonics (A).
  • Till 50th order voltage and current harmonics recording available.

TREND MODE

  • Press button and select Trend mode the above screen will appear.
  • This is for selection of parameters we wanted to record.
  • Use corresponding Function keys to Select/Unselect the parameter.
  • After selecting all the parameters, Press Return button for the previous screen.
  • Then select Trend mode key for Start the recording.

TREND MODE is the function used to Start Measurements & Monitor the readings.

  • After selecting Trend mode key recording list screen will appear.
  • Select the Function key for Recording schedule, the above screen will appear.
  • Enter the Record Name, Star & Stop time by using Navigation Keys.
  • Period is the sampling time for data recording.
    • 20s (seconds) means the analyser will record every 20 seconds per data.
    • The data will be the Minimum, Maximum & Average of 20 seconds data.
    • In Krykard ALM-32/33/35 the Interval limit from 1s (Seconds) to 15 mins (Minutes).
  • After entering all the details Press this button to start.
  • After starting the recording the below screen will appear.

  • During recording time, we will be able to see THD, RMS, Current & Voltage Phase sequence, Crest Factor, Power Parameters by selecting Function keys & Mode keys.

  • After reaching STOP TIME / Finishing the measurement, it will SAVE automatically.
  • If we want to STOP in between the measurement Press in Trend mode screen, it will stop immediately and save the records. We can stop the measurement in between the record time.
  • In that Trend mode select the recording list will appear. In this we can see the recorded measurements and the waveform of the record by Enter the selected record.

Check out:  Fluke-435 Tutorial

Thanks for reading this article. Will see you again with a new article. Until then bye from Dr. InPhase!!! For any feedback contact us to info@inphase.in or call +919632421402.

 

Dr.InPhase Edu Series – How to use FLUKE 434-SERIES II for Power Quality Analysis

Dr InPhase Edu Series PQ

Hello Everybody, Hi from Dr.InPhase. In our today’s educational series we are going to learn something very important and rudimentary for Power Quality. That is learning how to measure power quality using one of the popular Power Quality analysis equipment in the market the Fluke 434-II Series. If you have feedback don’t forget to write to info@inphase.in or drinphase@inphase.in

Power Quality is gaining a lot of prominence and priority in the market. The first step towards a better Power Quality is to conduct an analysis. Carrying out complete Power Quality requires a very good Power Analyzer.

At InPhase Power we carry out a lot of Power Quality Analysis study at various industries like Steel/Cement/Automobile/Paper/Process… etc. We use Fluke 434-II and Krykard ALM 33 Power Analyzers for this purpose.

In this multi-part series blog I am going to walk you through on how to carry out Power Quality Study to analyze and record various Power Quality factors like Harmonics, Unbalance, Power Factor, Flickers, etc…

The first part we will focus on Fluke 434-II which is a popular Power Quality analyzer and the posts to come later will focus on using Krykard ALM 33 and the process to analyse this data .

FLUKE 434-II

Fluke 434-II

  • Used for energy logging.
  • Measure the before and after installation improvement in Power Quality or Energy Consumption to justify the devices like Active Harmonic Filters, APFC, etc.
  • Detect and prevent Power Quality issues before they cause any issues.
  • Verify electrical system capacity before adding loads, and to Amylase the load pattern.

BASIC OPERATIONS

Basic operations-1

1– Press to power up or down the Fluke Analyzer. The home screen shows what                   Analyzer settings are currently in use.

DISPLAY INFORMATION

Display info

  • This is home screen when the analyzer gets TURN ON.
  • In this screen we can see basic configurations like Phase colors, Connection configuration, Choosing of CT probe and ratios.

MENU NAVIGATION

Menu navi

DATE & TIME

  • In home screen Press Setup Button
  • Press F4(MANUAL SETUP)
  • Select TIME in Home screen
  • Press ENTER
  • Made the changes in TIME & Press ENTER
  • Press F3 it will switch to DATE Adjustments
  • Made the changes in DATE & Press ENTER
  • Press F5 (Back to Home Screen)

LANGUAGES & PHASE COLORS

  1. Measuring results belongs to different phases are presented with individual colors. Every region in the world having different sets of color code for the Phase sequences.
  2. Here we proceed with UK region which is used in India also.
  3. The following steps are configuring the Phase Colors as well as Languages also.

Lang&Phase colours

  • Press Setup Button
  • Select F1 (USER PREF.)
  • Select Language –> Press ENTER
    • In that menu Select the Language desired & Press F5
  • Select Phase Colors –> Press ENTER.
    • In that menu select the region or customize the Colors & Press ENTER.
  • Press F5 (Back to Home screen)

WIRING SYSTEM CONFIGURATION

  1. FLUKE 434-II has a several pre-programmed wiring setups of electrical system/equipment.
  2. Based on the system configuration like Three Phase, Two Phase, Single Phase we can choose accordingly in the analyzer also.

The following steps are configuring the available wiring setup of FLUKE 434-II for the electrical system which we want to analyze.

Wiring sys config

  • Press Setup Button
  • Select F4 (MANUAL SETUP)
  • Select Config: –> Press ENTER
    • In that menu Select the Appropriate Configuration

Wiring sys config-2

  • Select Freq:–> Press ENTER.
    • In that menu select the Nominal Frequency.
    • 50 Hz is used in Europe, most of Africa, most of Asia, most of South America and Australia.
  • Select Vnom:–> Press ENTER.
    • In that menu select the Nominal Frequency.
    • 230V is used in Europe, most of Africa, most of Asia, most of South America and Australia.
  • Press F5 (Back to Home screen)

*In North America, the most common combination is 120 V and a frequency of 60 Hz

 

FLUKE 434-II CONNECTION CONFIGURATION

Fluke 434 connec config

NOTE: For connecting in 3-Phase 3-Wire system, Neutral probe connection can be neglected for CT as well as PT.

Fluke 434 connec config-2Fluke 434 connec config-3

  • Connection example shown in the above picture.
  • Analyser we could use to connect in HT side (like 11kV, 33kV), LT side (like 415V, 690V) by taking CT and PT reference from the Breaker panel (ex. VCB).
  • We can analyse the load in feeder wise as well as connecting the particular load also (like VFD, DC Drive, etc.)

CT & PT PROBES SELECTION AND COFIGURATIONSPT Probe

  • This probe for connecting the PT reference side or PRIMARY side or Direct BUS BAR SIDE.

PT

  • Press Setup Button
  • Press F4(MANUAL SETUP)
  • Select PHASE & NEUTRAL SETTINGS
  • Press ENTER
  • Press F4 –>
    • Change PT ratio as per the Primary Voltage.
    • 110V is common PT secondary voltage.
    • Connecting in Live BUS BAR side PT ratio should be 1:1
    • Example: Connecting in 11kV side VCB means PT ratio will be 11000:110 or 100:1
  • Press Enter after made the changes.
  • Press F4 do the changes in Neutral probe connection (OPTIONAL).
  • Press F5(Back to the Home Screen)

CT flex

  • This probe for connecting to the PRIMARY side or direct BUS BAR side.
  • For this CT ratio should be 1:1.

CT i430

  • Press Setup Button
  • Press F4(MANUAL SETUP)
  • Select PHASE & NEUTRAL SETTINGS
  • Press ENTER
  • Select AMP CLAMP –>
    • Change as per the Clamp connected (i430Flex, i5s, others)
  • Press Enter after made the changes (CT Ratio).
  • Press F4 do the changes in Neutral probe connection (OPTIONAL).
  • Press F5(Back to the Home Screen)

CT i5s

  • This probe is for connecting in Measuring or Protection CT side.

CT i5s last

  • The picture shows how to connect the probe in to the CT reference side.CT Clamp
    • Press Setup Button
    • Press F4(MANUAL SETUP)
    • Select PHASE & NEUTRAL SETTINGS
    • Press ENTER
    • Select AMP CLAMP –>
      • Change as per the Clamp connected (i430Flex, i5s, others)
    • Press Enter after made the changes (CT Ratio).
    • Press F4 do the changes in Neutral probe connection (OPTIONAL).
    • Press F5(Back to the Home Screen)

     

    *After this above setup the Analyser is ready for measurement.

     

    MEASURING PROCEDURE

    1. After doing the initial setup now the Fluke Analyzer is ready for taking the measurements.
    2. The following steps are for checking the connection and then proceed to start the measurement.

    PHASE SEQUENCE

    * The figures below explained for the correct connection setup.

    This is the first thing have to check for the connection verification.

Scope screen buttonScope Screen

  • After made the connection, Select Scope–>The above screen will appear
  • Press F1–>Switch to see Voltage or Current waveform
  • F2–>Cursor will appear for see the particular instant values (Use navigation keys to move the cursor)
  • F4–>Zoom in or Zoom out the waveform (Use navigation keys to Zoom in or Zoom out)
  • F5–>Back to the Home Screen
  • F3–>Vector view of Current & Voltage (Explained detailed in below)
    • These two screens are vector view of Voltage and Current
    • Press F1–>for switching the screen from Voltage to Current or Current to Voltage.
    • The directions should be clockwise & order should be Red-Yellow-Blue (RYB)

Scope-3

  • Compare the Amperes and with Analyzer and the connected Breaker panel side or Load side.
    • Check the amperes in the Multi-functional meter or Ammeter of the Breaker panel.
    • If the Ampere not matching with the load side check the CT ratio fixed. If it is wrong change it accordingly.
  • Amperes are matched check the Directions of vector as per the above diagrams.
    • If the directions are not proper check the CT Probe direction in the breaker panel.
  • Both Amperes should match.
  • After this check go to–>MENU

POWER & ENERGY

scope-4

  • Select–>POWER & ENERGY
    • Check the Actual Power(W), Apparent Power (VA)
    • Both values should be in Positive(+ve)
    • If the values are Negative (-ve) invert the CT probe direction fixed in the breaker panel.
    • Check for the fixing of CT probe direction in Breaker panel.
  • Press–>F5 (HOLD OR RUN)
  • Select–>F1 (DISCARD & EXIT)–>MENU Screen will appear.

HARMONICS

har

  • Select–>HARMONICS
    • We can see the harmonics % in voltage as well as current by scrolling down in the screen.
    • Till 50th order voltage and current harmonics recording available.

indiv harm

  • Press–>F2 (HARMONIC GRAPH VIEW)
    • We can see individual order of harmonics % and Amperes in each Phase.
    • Press–>F1 (Switch to see Voltage, Current, Watt Harmonics)
    • Press–>F2 (Viewing of individual phase Harmonics)
    • Press–>F3 (Back to Recording screen)
  • Press–>F5 (HOLD OR RUN)
  • Select–>F1 (DISCARD & EXIT)–>MENU Screen will appear.

 

LOGGER

Logger button

LOGGER is the function used to Start Measurements & Monitor the readings.

Screen-10

  • After selected the LOGGER button the above screen will appear
  • INTERVAL is the sampling time for data saving.
    • 10s (seconds) means the analyzer will record every 10 seconds per data.
    • The data will be the Maximum & Average of 10 seconds data.
    • In Fluke Analyzer the Interval limit from 0.25s (Seconds) to 2h (Hours)
  • Press–>F2 (CHANGE NAME for changing the measurement name as per wish)
  • Press–>F1 (SETUP READINGS)

Screen-11

  • This screen will appear
    • This is for selection of parameters we wants to record.
    • Each CATEGORY having set of parameters displayed in READINGS column.
    • Press–>F3 for Selecting the parameters we want.
    • Like this we have to do for each CATEGORY.
  • Screens displayed below explain about the parameter selection.

Screen-11 Screen-12 Screen-13 Screen-14 Screen-15 Screen-16 Screen-17

  • The parameters chosen here all are standard Power Parameters with 25th order Voltage & Current harmonics recording are used to analyze the load pattern of an Industry power, Understanding of Power Quality problems like Harmonic & Reactive power compensation.
  • Press–>F5–>After selecting all the parameters wants to measure–>LOGGER Screen will appear.

Screen-10

  • Duration of recording from minimum 1hr to maximum of 7days in Immediate
  • We can able to start measurement by scheduling in timed
  • After setup the measurement duration PressàF5 (START the measurement)
  • The below screen will appear.

logger measurement

By scrolling down this screen we can see the parameters we have selected before starting the measurement.

  • After finishing the measurements it will ask for SAVE.
  • If we want to STOP in between the measurement PressàF5(HOLD or RUN)
  • Press–>F1(DISCARD & EXIT)
    • To stop the measurement at any time.
  • Press–>F2(DISCARD & RESTART)
    • To restart the measurement.
  • Press F4–>(SAVE)
    • Save the recorded data–>SAVE Screen will appear.
    • In that screen, we can change the recorded data name as we want.
    • Press F5–>OK to save the data.

FEATURES

Features

SAVE SCREEN/SCREENSHOT

  • This is function for save the Running display as an image during Measuring time
    • We can save the SCOPE screen, LOGGER screen for the reference.
  • Press SAVE SCREEN–>Save Screen Menu will appear
  • Fix the name as we want or the default will be SCREEN XX (Number).
  • Press ENTER–>Save the screen
  • Press F5–>BACK to previous screen

MEMORY

After finishing the measurement we can see the recorded files and delete the unwanted recordings from MEMORY function.

  • Press MEMORY Button
  • Press F1–> RECALL or DELETE
    • In that menu the recorded files will appear.
    • Select the desired data by using the navigation keys.
    • Press F2–>VIEW the selected data.
    • Press F3–>DELETE the selected data.
    • Press F4–>RENAME the selected data.
    • Press F5–>RECALL the selected data.
      • This option will replay the entire measurement.
    • Press F1–>Back to the previous screen.

Thanks for reading this article. I hope this was helpful to you. In the upcoming parts I will detail about how to measure using Krykard ALM 33 Power Quality Analyzer and also discuss in detail how the data extracted from these equipment’s can be used to analyze power quality.

If you are interested to conduct a Power Quality Study InPhase Power is ready to support you. Contact us @ info@inphase.in or +919632421402