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THD and PF of Selador Series?

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Mike Olson posted on 12-10-2010 12:19 PM

What is the worst-case THD of the Seldor Series across its dimming range?

What is the worst-case PF across its dimming range?

Thanks!

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Top 75 Contributor
156 Posts

I just ran a quick test here. THD and PF are worst when the fixture is at 0%.

These tests were performed at 120V 60Hz on a single cell Vivid fixture.

Level Current Draw (A, RMS) Total Harmonic Distortion, Current (ITHD, %) Power Factor
All Colours OFF 0.17A 35% 0.83
All Colours @ 25% 0.26A 30% 0.89
All Colours @ 50% 0.41A 20% 0.96
All Colours @ FULL 1.06A 11% 0.98

Let me know if that helps, or if we can provide any further information to help.

Regards,

 

Tom

 

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Top 75 Contributor
156 Posts

I just ran a quick test here. THD and PF are worst when the fixture is at 0%.

These tests were performed at 120V 60Hz on a single cell Vivid fixture.

Level Current Draw (A, RMS) Total Harmonic Distortion, Current (ITHD, %) Power Factor
All Colours OFF 0.17A 35% 0.83
All Colours @ 25% 0.26A 30% 0.89
All Colours @ 50% 0.41A 20% 0.96
All Colours @ FULL 1.06A 11% 0.98

Let me know if that helps, or if we can provide any further information to help.

Regards,

 

Tom

 

Not Ranked
2 Posts

Thank you!

Top 75 Contributor
156 Posts

I just made a quick edit to these. My original readings were made with a current clamp that wasn't quite sensitive enough. Just repeated it with better measurement tools - so now more accurate.

-Tom

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