Gallery of Lights
The Site => General discussion => Topic started by: Jace the Gull on January 11, 2010, 09:18:09 AM
-
look at the video here, not something I've seen before....ODD
http://www.youtube.com/watch?v=07lExB0B83Y
-
Weirdo... :o It is 99% sure related to the device that controls all the streetlights, a remote photocontrol, probably an electronic one. (Failing electronics can act WEIRD)
-
Weird! Would those HID lamp's have to cool down before restriking again. I never heard of HID lamps hot-restrike. Only one place I have seen a HID lamp hot-restrike is here: http://www.youtube.com/watch?v=EU-v8G0GR-w (http://www.youtube.com/watch?v=EU-v8G0GR-w)
To this day I haven't found out why the lights did that. (The laundry room's lights in my video. Also haven't found out why the HPS were there in the first place.)
-
well remember they may have been flashing the whole night since turn on....so it would not be doing a hot restrike if it was not hot enough....remember it may have been flashing the whole time so it flashed as it "warmed up" so it wouldn't be hot enough.....to....need to cool down.....also HPS have the shortest time to restrike......in matter if fact remember my ballast box, the 50 watt tend to hot restrike right away without needing to cool down....the 35 watt is usually 2nd after being lit a long time....
-
well remember they may have been flashing the whole night since turn on....so it would not be doing a hot restrike if it was not hot enough....remember it may have been flashing the whole time so it flashed as it "warmed up" so it wouldn't be hot enough.....to....need to cool down.....also HPS have the shortest time to restrike......in matter if fact remember my ballast box, the 50 watt tend to hot restrike right away without needing to cool down....the 35 watt is usually 2nd after being lit a long time....
Strange Stuff...
and Prehaps High Pressure Sodium Restrikes Faster because the lamp is Ignited by High Voltage?
-
I've seen this sort of thing happen when there is a neutral issue on a circuit with multiple lights. Somewhere there is a bad neutral connection, I am guessing near the feed point.
Iteresting video......... good job...........
-
That's pretty weird! I've never seen a HPS act like that before, I have noticed though, that my 150W HPS ballasts box tends to flicker bright-dim whenever I use too much current on the same circuit. Would voltage drop cause something like that?.
-
In my experience, yes if you using too much current, it will take longer for an HPS to start up....now if you were using a very used HPS but still works fine, but just closer to EOL and you had a refrigator in the same current and the fridge kicks up.....HPS may cycle! I've had that happen to me!
-
When i was at near adolescence age i was saw 2 individual hot HPS road lights that flashed like the lights in this video. they was stopped flashing after several seconds. the only case that i saw a whole electrical system that flash like that was several years ago at the fish restaurant of Ein-Gev kibbutz. the lights not flashed like the lights in this video but filckered hardly randomly slightly like a fluorescent lamp igniting on rapid start magnetic ballast. All HID lamps at the outside of the restaurant which was MH was flickering like that until they completely warmed up and then extingused.
-
I have seen this exact same thing happen before. Many of the streetlights around here are in blocks, controlled by a PC for each block and a contactor. What I think is happening is the contacts on one leg of the contactor are pitted caused by arcing from normal operation. As the contacts arc and pit, material is burned away each time and eventually it gets to the point where it barely makes contact, sometimes intermittently like in the video, or not at all (total failure). Or it's possible the voltage going to the control relay coil for the contactor is having a problem, bad connection-bad ground, causing the relay to rapidly open and close the contactor contacts, or "chatter" like in the video. I see this all the time with motor contactors. The same kind of thing happens just from normal operation of the high voltage contacts opening and closing, arcing and pitting. Also the same kind of thing happens when the relay coil has voltage problems. It could also be that the relay coil is failing as well.
-
Sounds exactly what light boy 1 is saying....Relay and Contactor are two same thing...
-
This must REALLY put stress on the ignitors O.o
-
@Lil'Cinnamon: The stress for ignitors would be way much lower then "normal" cycler, as in this video the ignitor make only one or two pulses per start, so about 10/second, so 36k/hor, while with a cycler they generate 120pulses/second during whole cool-down, so about 300k/hour, so regular cycler stress ignitors ~10x more then this gault...
-
I'm guessing it's related to the relay control or possibly a bad nuetral like lightboy1 mentioned. I'd imagine such a thing wouldn't be to great on the ignitors lol.
-
I'm guessing it's related to the relay control or possibly a bad nuetral like lightboy1 mentioned. I'd imagine such a thing wouldn't be to great on the ignitors lol.
Reread what Meved said, it actually doesn't put that much stress in than a cycling HPS.....cycling HPS is worse on it because a cycling HPS would make a lot more pulses than this above......so it's actually better!