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How to make a choke on a lamp DRL 250

September 29, 2015 Electronics / DIY electronics 49 636 14

Since high pressure lamps DRL 250 have a rather long service life and high efficiency compared to incandescent lamps, they are successfully used to illuminate summer cottages, the courtyard of a private house, and sometimes even garages inside.

For years they have proven their reliability, quality of lighting, and all this for a small amount. Buy a lamp DRL 250 is not difficult. It is on sale both in specialized stores and in markets.

The problem may be the choke, which is included in the power supply circuit of the lamp. Since it consists of copper wire, the cost of it, even used, is quite high. Therefore, this article will describe how to make a choke for this lamp from other commonly found materials. For example, out of three chokes, once common daylight fixtures. Such chokes were used in luminaires for LD 40 lamps; accordingly, they had a 40-watt choke. Also, lamps for LD 80 lamps in which the throttle are designed for 80 watts. To replace a throttle for a 250 watt DRL lamp, you will need two 80 watt chokes and one 40 watt chokes. Schemes of their connection can be seen in the figure.

It can be seen here that all chokes are connected in parallel, that is, chokes connected in parallel form one common ballast.

One wire from socket 220 is connected to one end of the chokes, and the other wire from socket 220 goes directly to the lamp. The wire from the output of the chokes goes to the second contact of the lamp. The installation option of the chokes on the lamp housing can be seen in the photographs.

It also shows how the wires are connected. It is very important to make sure that the contacts on the terminals of the chokes have a good connection, otherwise they will sparkle and heat up. In the photo you can see how such a throttle works and starts the DRL 250 lamp.

Such a design was made and tested, showing good results. In addition to mounting the chokes on the luminaires, you can make a separate box in which they will be located, and lead wires from it to the lamp. This assembly option will cost much cheaper than buying a special throttle. I would like to recall that according to the rules for installing DRL lamps, they must be at a height of at least three meters. Since it is believed that they emit a lot of ultraviolet radiation, and this is undesirable for human skin.
That's all. Try it and you will succeed.

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Comments (14)

#1 Prehenderat Guests January 9, 2016 08:13
0

Chokes must be connected in series. This is noticeable in the photo of the operating lamp. But on the circuit diagram are erroneously depicted connected in parallel.
- To answer
1. #2 Acdc Guests January 8, 2019 10:23 p.m.
  3
  
  Teach physics section electricity
  
  To answer
#3 Hrom65 Guests January 29, 2016 15:25
5

[b] Prehenderat [/ b], When the chokes are connected in series, the inductors add up and the inductance increases. When connected in series, the current will be limited at the level of a 20-watt lamp.
- To answer
#4 Edward Guests February 28, 2016 19:05
0

So I have two 150W chokes (used with MGL150 lamps), if I connect them in parallel and in series with the lamp, I also think that I can use it with a DRL250 lamp? In this case, the total power of the chokes in my case will be 300 W, t .e. the lamp will work with a slight overload in power
- To answer
1. #5 Guest Andrey Guests May 25, 2018 07:35
  0
  
  Even a 20 W lamp can be safely connected via a 40 W inductor.
  
  To answer
#6 Micah Guests March 4, 2016 11:18
0

[b] Edward [/ b], it will be fine.
- To answer
#7 Edward Guests April 15, 2016 22:57
2

Micah, I also think that it will come down, I just wanted to once again make sure of my decision. At one time I connected 3 chokes 1i40 / 220 to power the DRL125 lamp. But in this topic it would be better to have 3 chokes 80 W each (3 * 80 = 240W), because 80 and 40 W reactors have different internal resistance of the windings, 80 W is 15 Ohms, 40 W resistance is 30 Ohms. But it would not happen that 40 W the inductor will overheat. Yes and the lamp power It will be with a shortage of 80 + 80 + 40 = 220 W, although in principle for such a 30 W lamp, lack of power is not critical. Practice has shown that if Qualitative lamp when the lamp power shortfall will work in light duty, and last longer. At one time I was servicing the exterior lighting of one military unit, so for lack of expensive DNaT400 lamps, I turned on DRL700 lamps, which were in bulk in the luminaires. So DRL700 lamps with 400 W chokes worked for about 8 years, albeit with a slight lack
- To answer
#8 Vladimir Guests August 3, 2016 02:18
2

in the garage, a DRL-125 operates for 2 years with 2 chokes from 40 W fluorescent lamps (included, of course, in parallel), in theory, 3 pieces should be used, but it shines normally, and so, the lamp voltage in the operating mode is 119-120 V. For reactive compensation Power is also connected to a 10mkf capacitor from the same old lamp.
- To answer
#9 maros Guests October 14, 2016 04:39
1

oh why these coils? did you see the drb lamp? no chokes. instead of these chokes, connect a 300 volt incandescent lamp in series.
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#10 Edward Guests November 23, 2016 23:42
3

Maros, what for such a perversion with an incandescent lamp? So all the more, an incandescent lamp will gobble up half the power stupidly to heat it and the DRL lamp will not be able to light up. There are DRV lamps, they combine a quartz burner as in DRL, and a spiral from an incandescent lamp as ballast resistance , so the efficiency of such lamps is extremely low and the service life is limited by the life of the spiral. If it burns, you will have to throw almost a new lamp into the trash
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1. #11 Guest Anatoly Guests July 13, 2018 09:12
  0
  
  Guys, you can use an open DRL lamp (use only halogen).
  This device kills the burning smell in the kitchen. You must have a “watch” from
  washers, throttle, lamp (halogen) and protective cover that allows air to pass through.
  The time relay (watch) serves as a switch; they have a stroke of 15 minutes.
  When something burns in the kitchen, turn on the device for 6-8 minutes. And that’s it.
  It’s not necessary to be in the kitchen itself. The smell will disappear without a trace.
  
  To answer
#12 DeD_Y Guests December 23, 2016 15:53
2

[b] Edward [/ b],
80 + 80 + 40 = 220 and 2 + 2 = 5?
I thought 80 + 80 + 40 = 200
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#13 Nail Guests 16 october 2018 23:18
0

Who would suggest how to light a DRISH lamp? (like "arc discharge pulse ball" if I do not confuse anything) Used in light "guns"
- To answer
1. #14 Guest Yuri Guests January 8, 2019 3:56 p.m.
  0
  
  DRISH is connected in series through a choke of the corresponding power of 150, 250, 400 watts. But to ignite the lamp, you need a high-voltage lighter (spark gap), which gives a spark through the bulb of the lamp. For a moment, the resistance of the cold lamp drops to zero, and current from the inductor starts to flow through it, then the spark gap is no longer needed until the next lamp start. They are sold in lighting equipment stores.
  
  To answer