research
 Patents
 Books
 Literature
 Articles
 Timeline
 Auction Archive

about
 About this site
 Wanted to buy

bulb gallery

Incandescent:
C
carbon
WD
drawn tungsten
WC
coiled tungsten
WM
mini tungsten
WS
pressed tung.
FG
figural bulbs
XL
christmas
XS
christmas sets
T
tantalum

Discharge:
NE
neon lamps
AR
argon lamps
XE
xenon lamps
MA
mercury
MC
fluorescent
MS
special mercury

Hardware:
F
fuses
FX
fixtures
PF
plugs & fittings
SA
sockets
SW
switches

tube gallery

 X-ray
 Geissler
 Crookes
 Radio
 Box art

museum pics

 Dr. Hugh Hicks
 
Fort Myers, FL.
 S.Slabyhoudek

links

 Related links
 Submit a link

 

Author Topic: 60W -> 250W Tungsten Overrun  (Read 25624 times)

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
60W -> 250W Tungsten Overrun
« on: February 02, 2005, 11:43:58 pm »
Here are some pictures of various incandescent lamps being overrun on a 250 W Metal Halide ballast.  The lamps look much better when they are overrun.  As with anything that is overrun the lamps do not last long, with the exception of the 60W halogen lamps which you can get well over an hour of runtime out of.


75W Philips Natural Light


Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/Compare.jpg


I overran a 60W Halogen as well.

Normal:


Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04511.jpg

Overrun:


Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04510.jpg

Normal:


Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04502.jpg

Overrun:


Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04506.jpg


Some pictures of fun things to do with these lamps after you’ve burnt them out.  (I ran them on a neon sign transformer 9 kV 25 mA)

Halogen Capsule:

Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04535.jpg

60W Philips Dura-Max:

Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04529.jpg
« Last Edit: February 02, 2005, 11:48:11 pm by pSlawinski »

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #1 on: February 02, 2005, 11:55:58 pm »
The halogen lamp I had been running for about two hours died as I was writing this topic.  Needless to say after being overrun at 250W for about two hours the capsule is pretty blackened.  Perhaps I will post some pictures of the lamp tommrow.
« Last Edit: February 03, 2005, 12:04:49 am by pSlawinski »

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #2 on: February 03, 2005, 03:27:49 pm »
After running for about two hours the filament finally split.? After it died took a look at it and the quartz was red hot in the dark areas.? I think if it kept on running for another hour or so the quartz might have failed.

60W Philips Halogen?


Large Image:http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04579.jpg
« Last Edit: February 03, 2005, 05:45:39 pm by pSlawinski »

Offline mr_big

  • Sr. Member
  • ***
  • Posts: 84
Re: 60W -> 250W Tungsten Overrun
« Reply #3 on: February 03, 2005, 03:43:28 pm »
You should try overrunnig a compact fluorescent bulb


Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #4 on: February 03, 2005, 03:46:52 pm »
That wouldn't work.  I would burn up the ballast very quickly.  The only way I could get more current into the tubes for a long enough time to take a picture would be to remove the tubes from the compact fluorescent ballast and put them on the metal halide ballast.  Even if I did that the lamp would fail very quickly, the electrodes just aren't made to handle that kind of current.

Offline Tim

  • Administrator
  • Hero Member
  • *****
  • Posts: 831
    • http://www.bulbcollector.com
Re: 60W -> 250W Tungsten Overrun
« Reply #5 on: February 03, 2005, 04:40:42 pm »
Forgive my ignorance here, but what is the purpose of over driving these lamps if their useful life is cut down to two hours?  Experimentation and curiosity I assume?  I'm not up on store bought bulb prices, but the halogen capsule lamps seem like a waste of $ to destroy, or no?  Please enlighten me!  :-o

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #6 on: February 03, 2005, 04:54:54 pm »
Yes, this was for the sake of experimentation.  I am changing most of my incandescent lamps to compact fluorescent lamps.  Instead of throwing the perfectly good lamp away I decided to ruin it first.  It is also a lot of fun to see a large amount of light pouring out of something that usually isn’t very bright at all.  I do not know exactly how long this lamp will last when overrun because when I started overrunning the lamp it already had a few hours of normal usage on it.  These cost about $2.00 without tax last time I checked.

Offline Tim

  • Administrator
  • Hero Member
  • *****
  • Posts: 831
    • http://www.bulbcollector.com
Re: 60W -> 250W Tungsten Overrun
« Reply #7 on: February 04, 2005, 09:45:24 am »
Hey Phillip,

Thanks for explaining, I understand now? :lol:? Nice pictures too above!

Offline mr_big

  • Sr. Member
  • ***
  • Posts: 84
Re: 60W -> 250W Tungsten Overrun
« Reply #8 on: February 04, 2005, 03:38:30 pm »
If you try to overrun one of the little 12v halogen capsules they may explode I have tried overrunnig one before and it glowed brightly for a few seconds and then exploded
« Last Edit: February 04, 2005, 03:43:21 pm by mr_big »

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #9 on: February 04, 2005, 04:35:06 pm »
The only low voltage lamp I have overrun is a little flashight bulb.? I do not have a good low voltage power supply.? I also don't have any 12v Halogen capsules.? I like discharge lamps more than incandescent lamps so I don't really really have that many incandescent lamps.

Offline mr_big

  • Sr. Member
  • ***
  • Posts: 84
Re: 60W -> 250W Tungsten Overrun
« Reply #10 on: February 04, 2005, 05:10:32 pm »
I will have to agree with you on this one I like discharge lamps better than incandescent lamps

Offline mr_big

  • Sr. Member
  • ***
  • Posts: 84
Re: 60W -> 250W Tungsten Overrun
« Reply #11 on: February 07, 2005, 03:45:02 pm »
have you tried overrunning a High Pressure Sodium Lamp
If so I would like to see some pictures

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #12 on: February 07, 2005, 05:04:13 pm »
Yes, I have overrun a HPS lamp before, but it was only because I did not have a proper ballast.  Usually overrunning HID lamps does not produce very desirable results.  In fact, running discharge lamps of any kind on a ballast that was not specifically intended for that lamp usually leads to less than desirable results.  It is also not a good idea to overrun HID lamps due to the risk of explosion.  HID lamps operate at a high internal pressure, and by increasing the wattage on the lamp you increase pressure and temperature which can ultimately lead to lamp failure.  This is especially true of metal halide lamps; you should never overrun a metal halide lamp by more than a few watts, because they are more likely to explode than most other types of HID lamps.

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #13 on: February 09, 2005, 06:02:38 pm »
Well somehow I managed to overdrive a lamp by accident.? This lamp lives in a touch lamp next to my bed.? When I tapped the fixture to turn it on the filament stuck together which shortened the filament and allowed more current to pass through it.


Normal Lamp:


Large Image: http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04706.jpg


Overdriven Lamp:


Large Image: http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04707.jpg


Compare:


Large Image: http://www.metal-halide.net/bulbcollectorforumpics/Large/DSC04709.jpg
« Last Edit: February 09, 2005, 10:27:37 pm by pSlawinski »

Offline pSlawinski

  • Sr. Member
  • ***
  • Posts: 91
  • Westinghouse Lamps
    • Metal-Halide.net
Re: 60W -> 250W Tungsten Overrun
« Reply #14 on: February 12, 2005, 12:14:56 am »
Here you go mr_big, I found the picture I took of the over driven HPS lamp.  This is a 100W Philips lamp.  It was run on a 250W metal halide ballast in this picture.  I used a plasma lamp to lower the striking voltage of the lamp.

The picture is on this page:
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=HPS&bulb=C100S54

I added some pictures of my 1kW Westinghouse MV today as well:
http://www.metal-halide.net/index.php?id=gallery&cat=HID&scat=MV&bulb=H36GW-1000-DX