Find Magnetic Ballasts: 250W, 400W, 700W, and 1000W | Need Help Locating Them?

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Discussion Overview

The discussion revolves around locating specific types of magnetic ballasts with wattage ratings of 250W, 400W, 700W, and 1000W. The context includes the need for these ballasts for controlling current in a variac setup rather than for traditional lighting applications.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant is seeking assistance in finding magnetic ballasts based on pictures provided, specifying the wattage ratings needed.
  • Another participant inquires about the labels on the ballasts, suggesting that this information could aid in identification.
  • A participant expresses frustration, stating that without additional information, such as the exact lamp types, it is difficult to determine the appropriate ballasts from the pictures alone.
  • One participant suggests looking into theater and stadium lighting suppliers as potential sources for the ballasts.
  • A later reply clarifies that the ballasts are not for lighting but are needed to control current for a variac connected to a high voltage transformer.
  • Another participant recommends considering Sola constant voltage regulating transformers, noting their ability to limit current flow to a load.

Areas of Agreement / Disagreement

Participants have differing views on how to identify and source the ballasts, with some suggesting specific suppliers while others emphasize the need for more information about the lamp types. The discussion remains unresolved regarding the best approach to locate the desired ballasts.

Contextual Notes

The discussion highlights limitations in identifying the ballasts based solely on pictures, as well as the dependency on specific lamp types to determine the appropriate ballasts.

JerryG
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I'm looking for a certain type of ballast and was hoping someone could help me find them. I'm looking for the ballasts shown in the pictures. I believe that they are magnetic ballasts. Two of them are 250W, two are 400W, one is 700W, and one is 1000W. Just for scale, the panel in the pictures is about two feet wide. Can anybody help me figure out where I can buy these?

PSU-1.jpg


PSU-2.jpg
 
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It looks like they have labels on them -- what do the labels say?
 
berkeman said:
It looks like they have labels on them -- what do the labels say?

That's the problem. All I have are these pictures. I am looking for some very robust ballasts with those wattage ratings and I know the ones used in this unit would work perfectly, but I don't know exactly what they are or where they are sold.

I am just hoping someone might recognize that type and know where I might be able to buy them.
 
look into theater and stadium lighting suppliers
 
You need to work backwards. What are the exact lamp types? From that you can determine the ballasts.

You can't do diddly from these pictures.
 
They are actually not for lighting. I need ballasts to control the amount of current that goes into a variac.

I am using the variac as in input to a high voltage, step-up transformer designed to exceed the dielectric strength of air. Once the arc is established, I need the ballasts to keep the power in check so the transformer and variac don't fry.
 
look into Sola constant voltage regulating tansformers. (Ferreoresonant transformer)

they will limit the current that can flow to a load.

http://www.solahevidutysales.com/cvs_hardwired_series_power_conditioner.htm
 
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