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A magnetic ballast (also called a choke) contains a coil of copper wire. The magnetic field produced by the wire traps most of the current so only the right amount gets through to the fluorescent light. That amount can fluctuate depending on the thickness and length of the copper wire.They aren’t hazardous when used as intended, as long as they don’t leak. You may be able to dispose of a few intact ballasts containing PCBs the same as ordinary trash or at a household hazardous waste collection event or drop-off location sponsored by your county, city, or waste disposal district or company.
- EMI filter: Blocks any electromagnetic Interference.
- Rectifier: Converts AC power to DC power.
- PFC: It does Power Factor Correction.
- Half-Bridge Resonant Output: Converts DC to square waved voltage with high frequency (20 kHz to 80 kHz).
Table of Contents
What components are in a ballast?
- EMI filter: Blocks any electromagnetic Interference.
- Rectifier: Converts AC power to DC power.
- PFC: It does Power Factor Correction.
- Half-Bridge Resonant Output: Converts DC to square waved voltage with high frequency (20 kHz to 80 kHz).
What can I do with an old magnetic ballast?
They aren’t hazardous when used as intended, as long as they don’t leak. You may be able to dispose of a few intact ballasts containing PCBs the same as ordinary trash or at a household hazardous waste collection event or drop-off location sponsored by your county, city, or waste disposal district or company.
VIDEO-2: What’s inside a magnetic ballast which is used to start tube light
Images related to the topicVIDEO-2: What’s inside a magnetic ballast which is used to start tube light
How does a magnetic ballast work?
The magnetic ballast uses a magnetic transformer of copper windings around a steel core to convert the input line voltage and current to the voltage and current required to start and operate the fluorescent lamps. Capacitors are added to assist lamp starting and power factor correction.
What is ballast material?
Ballast is material like broken stone, gravel or any other granular material. It can, for example be spread and packed below and around sleepers. It provides good drainage for the track structure and holds sleepers in the correct position by preventing movements caused by lateral load.
What is the difference between magnetic and electronic ballast?
Magnetic ballasts work at a frequency of around 60 Hz, whereas electronic ballasts work at an increased frequency of around 20,000 Hz. This is why fluorescent lamps using electronic ballasts do not flicker or emit any buzzing sounds. Electronic ballasts are also quite smaller in size and weight.
How do you test a magnetic ballast?
Disconnect primary supply to ballast and check all secondary leads for grounds. A short will give a low reading on the low resistance (OHMS) scale of the multimeter or the light will light on a simple continuity tester. This can be accomplished at the socket contacts or by probe puncturing the ballast leads.
Do ballasts have mercury?
This is important because lamps and certain ballasts contain hazardous materials, such as mercury, which can contaminate the environment and is harmful to human health.
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Are old ballasts worth money?
Depending on their age, and their casing, even if they have to be scrapped, ballasts can be worth a couple of dollars. According to current listings, if you can resell one that’s in fantastic condition, you can often get $13 to $20 for the average ballast! These are ones in great condition.
How do I know if a ballast has PCBs?
Ballasts manufactured between 1979 and 1998 that do not contain PCBs are labeled “No PCBs” If a ballast is not labeled “No PCBs”, it is best to assume it contains PCBs. If the ballast does contain PCBs, they are located inside the small capacitor or in the surrounding potting material.
Are fluorescent light ballast recyclable?
The entire lighting fixture does not need special handling and disposal as long as the ballast (electrical box) is not leaking. The non-leaking ballasts can be removed and recycled or disposed of properly.
Mechanical Ballast – What’s Inside
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How much copper is in a transformer?
Typically it will weigh anywhere from 500-1,200 pounds depending on the size. Weigh Your Coils – Aluminum coils will weigh much less compared to copper, but you can expect anywhere from 100-250 pounds of Aluminum and 150-350 pounds of Copper depending on the size of the unit.
Are magnetic ballasts being discontinued?
Second, magnetic ballasts – which conventional T12s require to run – are no longer manufactured in the U.S.
How long do magnetic ballasts last?
According to the Certified Ballast Manufacturers Association, the average magnetic ballast lasts about 75,000 hours, or 12 to 15 years with normal use.
Is a ballast a transformer?
A transformer changes the amperage and / or voltage. It literally “Transforms” electrical energy. A ballast is like a capacitor. Think of a ballast as a short-term battery.
Which is the best material to be used as ballast?
Among above materials, broken stone from Igneous rocks like quartzite and granite forms the excellent ballast materials. When these are not available then lime stone and sand stone can also be used as good ballast material.
What are the properties of ballast?
Good-quality railway ballast should have angular particles, high specific gravity, high shear strength, high toughness and hardness, high resistance to weathering, rough surface and minimum hairline cracks (Chrismer, 1985; Jeffs and Marich, 1987; Indraratna et al., 1998, 2000, 2003b; Esveld, 2001).
What are the 3 main important function of a ballast?
Functions of Ballast
It provides levelled bed or support for the railway sleepers. It transfers the load from sleepers to subgrade and distributes the load uniformly on subgrade. It holds the sleepers in a firm position while the trains pass by.
Does a magnetic ballast need a starter?
No Starters Required
Magnetic ballasts required a starter to get the lamp lit, electronic ballasts do not require a starter.
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Will LED tubes work with magnetic ballast?
These LED tubes are the newest, easiest to install and most expensive. They work with any kind of existing technology – whether it is T12 (Magnetic Ballast) or T8 (Electronic Ballast). To install them all you need to do is take the old fluorescent tube out and install the LED tube in its place.
Do magnetic ballasts use starters?
All magenetic ballast lights have starters. The starter emits light before the main tube is lighted up when you switch on a fluroscent tube light.
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