total harmonic distortion power meter by embuilt technologies
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DESCRIPTIONTHDPM-1 is THD analyzer which measures upto 51st harmonic.It provides Voltage and Current THD.It shows the net effect on THD due to load. It also shows following parameters- Voltage Current Watt Frequency Power Factor It is useful for testing of LED Drivers, SMPS, CFL, CHOKES etc.
- 1. Date-01/09/2014By-(THD MEASUREMENT WITH EXAMPLES AND FIGURES)EMBUILT TECHNOLOGIESwww.embuilt.comwww.energylogger.blogspot.comEmbuilt.email@example.com
2. Auxiliary Supply : 180 240 VoltsInput Voltage : 0 240 VoltsCurrent : 0 2.0 A*(200mA,500mA range are also available)Measures upto 51st HarmonicAccuracy Class : 1%Voltage HarmonicsCurrent Harmonics 3. THDPM-1 is THD analyzer which measures upto51st harmonic.It provides Voltage and Current THD.It shows the net effect on THD due to load.It also shows following parameters-VoltageCurrentWattFrequencyPower FactorIt is useful for testing of LED Drivers, SMPS, CFL,CHOKES etc. 4. VOLTAGECURRENTWATTPFVOLTAGE THDCURRENT THDNET THD(Frequency and PF shows alternately )Press to see Voltage Harmonics 5. Voltage3rdHarmonic5th Harmonic7th HarmonicVoltage rms Value1st HarmonicTHD %Press to see more Harmonics (Upto 51st harmonic can be seen)Press to see Previous HarmonicPress to see Current Harmonics 6. Current3rd Harmonic5th Harmonic7th HarmonicCurrent rms Value1st HarmonicCurrent THD %Pressto see more HarmonicsPress to see Previous Harmonic 7. Lets start testing with only bulb load.We take a 100 Watt bulb load and connect it toload side.Voltage THD is 2.90% and Current THD is 4.85%.So bulb cause a small Distortion in current. 8. Experiment with only CFL load.We take a normal 14 Watt CFL and connect it toload side.Voltage THD is 3.56% and Current THD is 26.99%.A CFL distorts the current more. 9. Experiment with BULB and CFL load.BULB specification is 100 Watt .CFL specification is 14W.Voltage THD is 3.23% and Current THD is 5.99% .BULB has more power than CFL and also linear innature so it tends to decrease the currentdistortion. 10. Experiment with BULB and CAPACITOR.We take a capacitor of 3.15F and connect to loadside with a normal BULB load.Voltage THD is 3.12% and Current THD is 15.34%.A capacitor also distorts the current. 11. Experiment with Laptop load.We take a laptop and connect it to supply withcharger of 65watt.Voltage THD is 7.92% and Current THD is 113.1%.AC to DC Converters provides high distortion incurrent. 12. Experiment with Laptop and Bulb load.We Connect Bulb and Laptop at load side.Voltage THD is 8.83% and Current THD is 69.59%.A linear load reduces the current distortion.BULB has more power than Laptop Charger and alsolinear in nature so it tends to decrease the currentdistortion. 13. Experiment with LED and LED Driver Load.We Connect LEDs at load side through LED Driver.Voltage THD is 1.68% and Current THD is 133.9%.LED Driver produces high distortion in current. 14. Experiment with LED BULB.We Connect LED at at load side.Voltage THD is 2.55% and Current THD is 63.40%.LED Driver produces distortion in current.