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Ballast. Cross section of a vessel with a single ballast tank at the bottom. Ballast is dense material used as a weight to provide stability to a vehicle or structure. Ballast, other than cargo, may be placed in a vehicle, often a ship or the gondola of a balloon or airship, to provide stability.
The meaning of BALLAST is a heavy substance (such as rocks or water) placed in such a way as to improve stability and control (as of the draft of a ship or the buoyancy of a balloon or submarine). How to use ballast in a sentence.
An electrical ballast is a device that limits the current through an electrical load. These are most often used when a load (such as an arc discharge) has its terminal voltage decline when current through the load increases.
BALLAST definition: 1. heavy matter such as sand, stone, or water that is used at the bottom of a ship or a hot-air…. Learn more.
Feb 24, 2012 · Working Principle: The electronic ballast converts AC voltage to a high-frequency output to start and regulate the gas discharge in lamps, ensuring efficient lighting.
May 9, 2021 · A ballast resistor is a resistor used to limit current in a circuit and prevent over-current faults. The term “electric ballast” refers more broadly to any device, such as resistors, capacitors, or inductors, that helps stabilize a circuit by controlling current and voltage levels.
something that helps someone or something to succeed, especially by keeping them or it under control, or making them or it more serious: He needed his platoon mates around him. They were his ballast. The team is struggling because of a shortage of the ballast that senior players provide. Fewer examples.
Ballast. Definition: A device that by means of inductance, capacitance, or resistance, singly or in combination, limits the lamp current of a fluorescent or high intensity discharge lamp. It provides the necessary circuit conditions (voltage, current and wave form) for start.
noun. any dense heavy material, such as lead or iron pigs, used to stabilize a vessel, esp one that is not carrying cargo. crushed rock, broken stone, etc, used for the foundation of a road or railway track. coarse aggregate of sandy gravel, used in making concrete. anything that provides stability or weight.
Definition of ballast noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
