Ballast

Preissail devices are abbreviated with the abbreviation VG and required for the operation of discharge lamps. They are responsible for the limitation of the discharge current, which arises when the ignition of such lamps and the avalanche -like ionization of the noble gases. If there were no ballast, the current would increase extremely strongly and destroy the lamp after a very short time.

Such a ballast can then either be installed directly in the illuminant, as an external component or sometimes only operated with an additional so -called starter. A distinction is made between two ways: On the one hand, there are magnetic or conventional ballasts (abbreviated with KVG) and the low -loss operating devices (abbreviated with VVG) and on the other hand you get electronic ballasts (abbreviated with EVG). The current flow is limited to different ways, whereby it can be inductively reduced by a throttle coil or this is electronically preconent. There are no disturbing humming noises in the latter and it can be worked on electronic ballasts without an additional ignition device.

If you are in possession of a discharge lamp as it is, for example, fluorescent lamps or if you want to buy one, care must be taken to ensure that a ballast is installed. If this is not the case, this must be bought.