McGillNIC
Member
- Location
- Portland, OR
I'm a lighting rep (with contractor experience) working with a contractor to troubleshoot a problem. We have two 277V circuits with Philips (48W) LED troffers (43 on one circuit and 47 on another circuit). These are controlled by Wattstopper ceiling mount sensors. The issue is that when the lights come on, randomly one or two lights won't fire up. If you switch the fixtures off and back on, these fixtures come on and a different one or two don't come on. The contractor thought it was an issue with the drivers (doesn't sound like it) however, we replaced 8 drivers and had the factory test them and they were good.
The first thought is that it is a problem with in-rush current since LEDs have a high demand when they are first switched on.
Another thought, the transformer feeding the 277V panel may be sized appropriate for typical lighting loads but can't handle the initial surge from the LEDs.
Any thoughts or experience with these problems or troubleshooting what the problem is?
Thanks for the help!
The first thought is that it is a problem with in-rush current since LEDs have a high demand when they are first switched on.
Another thought, the transformer feeding the 277V panel may be sized appropriate for typical lighting loads but can't handle the initial surge from the LEDs.
Any thoughts or experience with these problems or troubleshooting what the problem is?
Thanks for the help!