The report analyzes the harmonics of a 0.5 Watt LED bulb tested on May 16, 2015. It found the voltage total harmonic distortion to be 1.051% and current THD to be 19.55%. The harmonic spectrum table shows the amplitudes of individual harmonics up to the 55th order for both voltage and current. The highest voltage harmonics were the 3rd, 5th and 7th orders, while the highest current harmonics were the 1st, 3rd, 5th and 7th orders.

1. Report Generated by SPEA-1 Software © Embuilt Technologies
www.embuilt.com
Harmonics Analysis Report
ABC PVT. LTD.
Basic Parameters
Notes-
Date(dd-MM-yyyy HH:mm) 16-05-2015 15:21
Test Done By- Mr. A Kumar
Test Model- 0.5 Watt LED Bulb
Test Requested By- R&D Department
Voltage rms 227.4 V
Current rms 0.01888 A
Watt 0.359 W
PF 0.083
Frequency 49.91 Hz
V thd % 1.051 %
I thd % 19.55 %

2. Report Generated by SPEA-1 Software © Embuilt Technologies
www.embuilt.com
Voltage Harmonic Spectrum
Notes-
Current Harmonic Spectrum
Notes-

3. Report Generated by SPEA-1 Software © Embuilt Technologies
www.embuilt.com
Harmonics Spectrum Table
Notes-
Harmonic
Order
Voltage % VTHD Amps THD Amps
THD%
Notes
rms 227.40 V 0.02 A
1 227.30 V 99.96 % 18.52 mA 98.09 %
3 0.15 V 0.06 % 1.41 mA 7.47 %
5 0.80 V 0.35 % 1.42 mA 7.50 %
7 2.20 V 0.97 % 1.64 mA 8.70 %
9 0.25 V 0.11 % 0.81 mA 4.28 %
11 0.72 V 0.31 % 1.09 mA 5.77 %
13 0.28 V 0.12 % 0.72 mA 3.81 %
15 0.14 V 0.06 % 0.73 mA 3.88 %
17 0.42 V 0.18 % 74.48 A 0.39 %
19 0.10 V 0.05 % 0.50 mA 2.65 %
21 45.75 mV 0.02 % 0.44 mA 2.31 %
23 63.75 mV 0.03 % 0.40 mA 2.13 %
25 21.53 mV 0.01 % 0.34 mA 1.79 %
27 22.03 mV 0.01 % 0.31 mA 1.63 %
29 33.30 mV 0.01 % 0.38 mA 2.03 %
31 27.75 mV 0.01 % 0.22 mA 1.17 %
33 26.91 mV 0.01 % 0.23 mA 1.23 %
35 10.26 mV 0.00 % 0.29 mA 1.51 %
37 51.13 mV 0.02 % 0.26 mA 1.40 %
39 22.70 mV 0.01 % 0.15 mA 0.78 %
41 12.44 mV 0.01 % 0.16 mA 0.85 %
43 40.36 mV 0.02 % 0.26 mA 1.35 %
45 9.76 mV 0.00 % 0.16 mA 0.83 %
47 8.41 mV 0.00 % 0.19 mA 1.00 %
49 24.39 mV 0.01 % 0.17 mA 0.90 %
51 9.42 mV 0.00 % 0.18 mA 0.93 %
53 14.97 mV 0.01 % 0.13 mA 0.67 %
55 0.00 % 0.00 %