How does a ballast circuit work?
Table of Contents
In its simplest form, a ballast uses magnetic energy that erupts into the lamp when it is turned on, stimulating the electrodes to make a current and the lamp glows.
What is the purpose of a ballast bulb?
In a fluorescent lighting system, the ballast regulates the current to the lamps and provides sufficient voltage to start the lamps. Without a ballast to limit its current, a fluorescent lamp connected directly to a high voltage power source would rapidly and uncontrollably increase its current draw.
How does a rapid start ballast work?
A rapid start ballast applies voltage and heats the cathodes simultaneously. It provides superior lamp life and more cycle life, but uses slightly more energy as the electrodes in each end of the lamp continue to consume heating power as the lamp operates.
What are the types of ballast?
Types of Ballast
- Broken stone Ballast. Broken stone is a widely used ballast in railways.
- Sand Ballast. Sand can also be used as a ballast material.
- Gravel Ballast. Ad.
- Moorum Ballast. Moorum is formed by the decomposition of laterite.
- Coal Ash or Cinder Ballast.
- Brickbat Ballast.
What voltage does a ballast put out?
Fluorescent lamps use a ballast which transforms line voltage to a voltage to start up and operate the lamp(s). Newer fluorescent ballasts are usually rated for both 120 volts and 277 volts. Some are rated for only 120 volts, others for only 277 volts (used in commercial environments).
Does ballast consume power?
Ballast also use power, so it will also waste your energy cost. The manufacturer clearly states that their LED tube light must be used with an external ballast and that in most cases the ballast supporting the fluorescent lamp being replaced can be used.
What’s the difference between instant start and rapid start ballast?
Rapid start configurations have two wires connected to each side of the lamp. There is a small voltage between the two wires that is used to provide heat to the lamp’s cathodes. With an instant start configuration, a high voltage pulse is used to start the arc between the lamp’s cathodes.
What is ballast types of ballast?