Electronic Theatre Controls
Welcome to ETC's Online Community
Forums » ETC Luminaires/Fixtures » Selador Series » THD and PF of Selador Series?

THD and PF of Selador Series?

rated by 0 users
Answered (Verified) This post has 1 verified answer | 3 Replies | 1 Follower

Not Ranked
2 Posts
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!

  • Filed under:

Answered (Verified) Verified Answer

Top 75 Contributor
130 Posts
Reply
Answered (Verified) tomsteer replied on 12-10-2010 2:33 PM

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

 

All Replies

Top 75 Contributor
130 Posts
Reply
Answered (Verified) tomsteer replied on 12-10-2010 2:33 PM

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
Reply
Mike Olson replied on 12-10-2010 3:34 PM

Thank you!

Top 75 Contributor
130 Posts
Reply
tomsteer replied on 12-13-2010 11:28 AM

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

Page 1 of 1 (4 items) | RSS
Powered by Community Server (Commercial Edition), by Telligent Systems