Presentation is loading. Please wait.

Presentation is loading. Please wait.

By- EMBUILT TECHNOLOGIES (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014.

Similar presentations


Presentation on theme: "By- EMBUILT TECHNOLOGIES (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014."— Presentation transcript:

1 By- EMBUILT TECHNOLOGIES (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014

2 Auxiliary Supply : 180 – 240 Volts Input Voltage : 3V – 300 Volts Current : 10mA – 2.0 A* (200mA,500mA,10A,20A range are also available) Frequency Hz (45-65 Hz is also available) Measures upto 55th Harmonic Accuracy Class : 0.2% Voltage Harmonics Current Harmonics

3  THDPM-1 is THD analyzer which measures upto 55 th 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, Charger, AC to DC Converter, UPS etc.

4 VOLTAGE CURRENT WATT PF VOLTAGE THD CURRENT THD NET THD (Frequency and PF shows alternately ) Pressto see Voltage Harmonics

5 3 rd Harmonic Voltage 5 th Harmonic 7th Harmonic Voltage rms Value 1 st Harmonic THD % Pressto see more Harmonics (upto 55 th harmonic can be seen) Pressto see Current Harmonics Pressto see Previous Harmonic

6 3 rd Harmonic Current 5 th Harmonic 7 th Harmonic Current rms Value 1 st Harmonic Current THD % Pressto see more Harmonics (upto 55 th harmonic can be seen) Pressto see previous Harmonic Pressto see to go to main page

7

8

9  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.

10

11

12  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.

13

14

15  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.

16

17

18  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.

19

20

21  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.

22

23

24  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.

25

26

27  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.

28

29

30  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.

31

32

33  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.

34

35


Download ppt "By- EMBUILT TECHNOLOGIES (THD MEASUREMENT WITH EXAMPLES AND FIGURES) Date-03/09/2014."

Similar presentations


Ads by Google