US9111705(DAIMLER AG [DE])
[0005] By means of the device according to the invention, a risk of overloading the contactor in the event of a fault in the load circuit, for example if the contactor is acted on by a short circuit current load that is a multiple of the rated current of the contactor, is advantageously at least reduced.
【0007】
本発明による装置によって、有利に、負荷回路におけるエラーケースの場合の電磁接触器の過負荷のリスク、例えば、電磁接触器の定格電流の数倍になる短絡電流による電磁接触器の負荷は少なくとも軽減される。
The overload contact, by means of which the magnet coil can be short-circuited,
磁気コイルを短絡可能にする過負荷接点によって、
avoids the occurrence of repeated opening and closing of the contacting between the contact bridge and the fixed contacts, which is referred to in the literature as electromagnetic repulsion, levitation or fluttering, as a result of which the contact bridge is welded to the fixed contacts due to arc formation between the contact bridge and the fixed contacts.
文献にて電磁的な反発力、浮上あるいはチャタリング(Flattern)と称される繰り返される開閉により接点ブリッジと固定接点との接触が生じ、それにより接点ブリッジが接点ブリッジと固定接点との間のアーク放電発生によって固定接点と溶接されるのが回避される。