Tube Light Testing
We are testing a Tubelight at 220 Volts UPS AC input. We are using Embuilt SPEA-1 to test the Bulb properties.
LED Driver Testing with THD Measurement
Test Results
When power is on the following results are found:
- Vrms: 222.4 Volts
- Arms: 153.4mA
- Watt: 32.24Watt
- VTHD%: 4.3%
- ATHD%: 28.8%
- V3rd Harmonics Value: 6.891Volts
Analysis: Here we can see that VTHD is 4% which means UPS Supply has 4.3% distortion in Voltage. It also effect the wave form of UPS Supply or we can say that Voltage waveform is not 100% sine wave (Ideal condition).
ATHD % is 28.8% which means LED Driver(Internal in LED Bulb) distorted the AMPS waveform by 28.8 %. It also has effect of Voltage THD.
We can see the 3rd harmonics of Voltage is 6.891 Volts.
Voltage 3rd Harmonics Analysis
Here we can see the 3rd harmonics of voltage in % of first harmonics. 3rd Voltage harmonics is 2.8% of Vrms Harmonics.
Note: Here we note that ideally first harmonics is to be equal of Vrms and other order harmonics are to 0. So we need to minimize the harmonics.
Amps (Current) 3rd Harmonics Analysis
Here we can see the 3rd harmonics Value of Amps. It is 30.25mA. Other harmonics can be seen using UP/DOWN Buttons.
In the above image 3rd Harmonics of Amps shows in display 6. It is 19.7% of Arms (152.9mA).
Other parameters can also be seen on SPEA-1.
SPEA-1 Software Integration
Software is connected to SPEA-1 for real time data viewing and reporting.
Harmonics Spectrum Analysis
Voltage Harmonics Spectrum
Above is the voltage harmonics spectrum. All values are given in % of Vrms.
Current Harmonics Spectrum
Above is the Amps(Current) harmonics spectrum. All values are given in % of Arms.
Harmonics Report
Harmonics report is also generated which contains the parameter values with Harmonics spectrum.