![Page 1: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/1.jpg)
THDPM-1
By-EMBUILT TECHNOLOGIES
www.embuilt.comwww.energylogger.blogspot.com
(THD MEASUREMENT WITH EXAMPLES AND FIGURES)
Date-03/09/2014
![Page 2: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/2.jpg)
THDPM-1
Auxiliary Supply : 180 – 240 VoltsInput Voltage : 3V – 300 VoltsCurrent : 10mA – 2.0 A*(200mA,500mA,10A,20A range are also available)
Frequency 45-55 Hz (45-65 Hz is also available)Measures upto 55th HarmonicAccuracy Class : 0.2%Voltage HarmonicsCurrent Harmonics
![Page 3: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/3.jpg)
INTRODUCTION
THDPM-1 is THD analyzer which measures upto 55th harmonic.
It provides Voltage and Current THD. It shows the net effect on THD due to load. It also shows following parameters-
VoltageCurrentWattFrequencyPower Factor
It is useful for testing of LED Drivers, SMPS, CFL, CHOKES, Charger, AC to DC Converter, UPS etc.
![Page 4: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/4.jpg)
MAIN PAGE
VOLTAGE
CURRENTWATT
PF
VOLTAGE THD
CURRENT THD
NET THD
(Frequency and PF shows alternately )
Press to see Voltage Harmonics
![Page 5: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/5.jpg)
VOLTAGE THD PAGE
3rdHarmonicVoltage
5th Harmonic7th Harmonic
Voltage rms Value
1st Harmonic
THD %
Press to see more Harmonics (upto 55th harmonic can be seen)
Press to see Current Harmonics
Press to see Previous Harmonic
![Page 6: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/6.jpg)
CURRENT THD PAGE
3rd Harmonic
Current
5th Harmonic7th Harmonic
Current rms Value
1st Harmonic
Current THD %
Press
to see more Harmonics (upto 55th harmonic can be seen)
Press to see previous Harmonic
Press to see to go to main page
![Page 7: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/7.jpg)
TEST BENCH SETUP
![Page 8: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/8.jpg)
THD ANALYSIS
![Page 9: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/9.jpg)
Experiment 1
Lets start testing with only Bulb load.
We take a 100 Watt Bulb load and connect it to load side.
Voltage THD is 2.90% and Current THD is 4.85%.
So Bulb causes a small distortion in current.
WITH BULB LOAD
![Page 10: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/10.jpg)
EXPERIMENT 1 PART AVOLTAGE THD
![Page 11: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/11.jpg)
EXPERIMENT 1 PART BCURRENT THD
![Page 12: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/12.jpg)
WITH CFL LOAD
Experiment with only CFL load.
We take a normal 14 Watt CFL and connect it to load side.
Voltage THD is 3.56% and Current THD is 26.99%.
A CFL distorts the current more.
Experiment 2
![Page 13: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/13.jpg)
EXPERIMENT 2 PART AVOLTAGE THD
![Page 14: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/14.jpg)
EXPERIMENT 2 PART BCURRENT THD
![Page 15: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/15.jpg)
WITH BULB AND CFL LOAD
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 in nature so it tends to decrease the current distortion.
Experiment 3
![Page 16: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/16.jpg)
EXPERIMENT 3 PART AVOLTAGE THD
![Page 17: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/17.jpg)
EXPERIMENT 3 PART BCURRENT THD
![Page 18: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/18.jpg)
WITH BULB AND CAPACITOR LOAD
Experiment with Bulb and Capacitor.
We take a capacitor of 3.15µF and connect to load side with a normal Bulb load.
Voltage THD is 3.12% and Current THD is 15.34%.
A Capacitor also distorts the current.
Experiment 4
![Page 19: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/19.jpg)
EXPERIMENT 4 PART AVOLTAGE THD
![Page 20: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/20.jpg)
EXPERIMENT 4 PART BCURRENT THD
![Page 21: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/21.jpg)
WITH LAPTOP LOAD
Experiment with Laptop load.
We take a laptop and connect it to supply with charger of 65watt.
Voltage THD is 7.92% and Current THD is 113.1%.
AC to DC Converters provides high distortion in current.
Experiment 5
![Page 22: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/22.jpg)
EXPERIMENT 5 PART AVOLTAGE THD
![Page 23: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/23.jpg)
EXPERIMENT 5 PART BCURRENT THD
![Page 24: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/24.jpg)
WITH BULB AND LAPTOP LOAD
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
also linear in nature so it tends to decrease the current distortion.
Experiment 6
![Page 25: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/25.jpg)
EXPERIMENT 6 PART AVOLTAGE THD
![Page 26: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/26.jpg)
EXPERIMENT 6 PART BCURRENT THD
![Page 27: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/27.jpg)
WITH LED DRIVER LOAD
Experiment with LED and LED Driver Load.
We Connect 60 LEDs of 1Watt each at load side through LED Driver.
Voltage THD is 1.68% and Current THD is 133.9% .
LED Driver produces high distortion in current.
Experiment 7
![Page 28: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/28.jpg)
EXPERIMENT 7 PART AVOLTAGE THD
![Page 29: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/29.jpg)
EXPERIMENT 7 PART BCURRENT THD
![Page 30: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/30.jpg)
WITH LED BULB LOAD
Experiment with LED Bulb.
We Connect LED Bulb at at load side. Voltage THD is 2.55% and Current THD is
63.40% . LED Driver produces distortion in current.
Experiment 8
![Page 31: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/31.jpg)
EXPERIMENT 8 PART AVOLTAGE THD
![Page 32: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/32.jpg)
EXPERIMENT 8 PART BCURRENT THD
![Page 33: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/33.jpg)
WITH LED BULB AND NORMAL BULB LOAD
Experiment with LED Bulb and normal Bulb load.
We Connect LED Bulb and normal Bulb at load side.
Voltage THD is 1.78% and Current THD is 7.02%.
Bulb is linear device and has power more than LED Bulb so it reduces the Current distortion.
Experiment 9
![Page 34: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/34.jpg)
EXPERIMENT 9 PART AVOLTAGE THD
![Page 35: By- EMBUILT TECHNOLOGIES Embuilt.tech@gmail.com (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014](https://reader035.vdocuments.us/reader035/viewer/2022062518/56649c995503460f949557f8/html5/thumbnails/35.jpg)
EXPERIMENT 9 PART BCURRENT THD