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Strange cycling of a 150W HPS lamp, in the parking lot of the Castra mall, probably because it is an american lamp on an ANSI S55 ballast?

Strange cycling of a 150W HPS lamp, in the parking lot of the Castra mall, probably because it is an american lamp on an ANSI S55 ballast?


This lamp have a cycling exactly like penning start HPS lamp (~2 mins of total darkness than it simply restrikes, as if it was a self-starting lamp with a bi-metal).
So I checked the nearby fixture, which is the same, and noticed that all these fixtures have this label on:


Seems that these aren't Gaash lowbays as I thought before, but american fixtures with ANSI S55 ballasts and american 150W HPS amps (Hence the elliptical clear finish of all the lamps, which isn't a common format for HPS in europe).

So I took a quick picture of the cycling HPS lamp with a flash, to check if the lamp is a self-starting HPS lamp (It have no starting coil, so it can't be a penning start HPS lamp):

But I can't detect if it have a starting aid inside.

youtube_v2nEOmt3zCA.jpg youtube_cXMGQy9PsnQ.jpg youtube_vK3ioFM9irw.jpg youtube_cQ4TW2dT5Q8.jpg

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Filename:youtube_vK3ioFM9irw.jpg
Album name:dor123 / Videos
Keywords:Lamps
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Date added:Jul 26, 2013
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Jul 26, 2013 at 03:06 AM Author:
It could very well be a GE lucalox lamp but for US ballast. GE because of the external amalgam reservoir protruding at the end of the arctube. American arctubes are shorter I think so this could be one fitted by mistake or the entire light fitting be US but tapped at 230v but 60Hz so accounts for the humming sound becxuase of wrong Hz.
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Jul 26, 2013 at 04:36 AM Author: dor123
imj: The humming you hear in the video, isn't related to the ballast, but to the horn speakers of the public address system in the parking lot.
But why it is simply restrike from no glow at all? This is exactly the cycling of penning start HPS lamps.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.





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Jul 26, 2013 at 08:17 AM Author:
Running 60Hz devices on 50Hz will definately be strange. The ballast shouldn't even be able to give out 150w maybe 100w at best. The non-glowing could be atrributed to the wrong Hz since it is firing slower than is designed so cannot peak enough to cause glowing until the arctube pressure lowers 2min (longer than 50Hz ignitor) to relight it.
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Aug 31, 2013 at 02:24 AM Author: dor123
Update: http://www.youtube.com/watch?v=qonxdBPBtFI
This video probably may explain, why the lamp in my video here, behaves like it behaves during cycling, as his lamp cycling very similar, and he (george911751) describes that he don't uses an ignitor and his lamp starts and hot restrike from plain 230V. So this might be the scenario also here (Ignitor is defect, and so not operating, and the lamp doing EOL cycling and manages to hot restrike from plains 230V mains, which why it is dark for 1:45-2:00 mins, and than simply restrike).

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.





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Aug 31, 2013 at 03:42 AM Author:
The lamp in your video is a US HPS. The one in george911751 is a UK lamp. The ballast for US lamp is not simple series ballast but an autotransformer so it's unlikely to be 230v OCV in the first place being a low voltage US HPS <90v it would still need the 4Kv to light the arctube so I would figure it's not the ignitor but the wrong Hz since most electrical technicians will dismiss the HZ and only look at the voltage. Only way to find out is to open the ballast compartment (which you can't) and see if it's using correct gear.

About why his lamp lights with no ignitor..The lamp is old so the arctube is coated with burnt material from the electrodes so serve as a starting aid/strip.
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Aug 31, 2013 at 04:20 AM Author: dor123
http://www.lighting-gallery.net/index.php?topic=3149 (Read what Medved said there).
I don't think that it have to do with the mains frequency, since the lamp do not care if it operating on 50hz or 60hz.
In the above thread, I misleadingly wrote S56, instead of S55. And Medved said that the arctube is quite short and thick for an european 150W and american S56 HPS lamps, and that it could be S55, and he said that if this is the case, he won't be surprised if the lamp starts from plain 230V mains.
After I realised that the S56 is a mistake and corrected this to S55, I searched for GE Lucalox Cycling in Youtube, only to find the video of george911751, which despite british Lucalox-T 70W/XO, had exactly the same cycling (Ignore the different lamp colours during hot restrike in his video) as in the video here, and he describes that his lamp, despite external ignitor, start without ignitor at all (Plain 230V). Since Medved said that he won't be surprised if the GE S55 HPS lamp would start from the mains, I think that this is what happenes here (After several cycling with the ignitor in the fixtures, the ignitor killed but the lamp still manages to hot restrike and start from plain 230V).

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.





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Aug 31, 2013 at 06:24 AM Author:
Then it could likely be the tube blackening as the starting aid and if you follow Medved's explanation then you could only assume that the ballast in your video is 50Hz series ballast. It dosen't make sense for Americans to incorporate an extra ignitor if the OCV of their ballast gives 230v and can light the lamp without ignitor. The little protrusion (external amalgam reservoir) at the end of the arctube would suggest that it is a GE lamp not EYE with FEC.
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Aug 31, 2013 at 08:19 AM Author: dor123
IMJ: I know that this is a GE and not EYE lamp. This is why I put this video here, as both lamps are GE, and both cycling in the same manner, and in George video, the lamp starts and cycling without an ignitor at all with the same cooling down period as in my video, so thats why I think that this scenario happens also here.

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.





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Aug 31, 2013 at 08:51 AM Author:
Anyways from my experience with GE HPS they are quite difficult to light. I have 3 of those 70w Lucalox T lamps. I use them on the starter and bulb set up the Philips SON-T (Belgium)light the easiest the GE ones need a few more opening and closing of the starter so that would also indicate it to be rare to impossible for GE lamp to light on 230v OCV. So I would still go for the blackened arctube as a starting aid for both scenarios since the burnt/sputtered material is still conductive I think.
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Nov 15, 2013 at 07:00 AM Author: dor123
Update: After translating much of the comments on this video of George from Czech to english, there is a strong probability that the reason for the strange cycling of this lamp is because it is a penning start HPS lamp, as the word "Antenna" mentioned numerous time as the cause of George's GE Lucalox T/XO 50W HPS lamp to start and hot restrike directly from plain 230V, so I believe that a similar mechanism plays a rule here (Despite I tryed as much as I can, to find a starting spiral or aid around or near the arctube and does not found).

I"m don't speak English well, and rely on online translating to write in this site.
Please forgive me if my choice of my words looks like offensive, while that isn't my intention.

I only working with the European date format (dd.mm.yyyy).

I lives in Israel, which is a 230-240V, 50hz country.

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