Method for protecting an electrical modular unit from overcurrent damage

The invention relates to a method for protecting an electrical modular unit (8) from overcurrent damage by virtue of an inductive component (38) converting electrical energy into magnetic and thermal energy, in which a bypass (24, 24a-c) bypasses the inductive component (38) during regular operation...

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Bibliographic Details
Main Author SCHMITT DANIEL
Format Patent
LanguageChinese
English
Published 23.11.2016
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TRANSFORMERS
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Summary:The invention relates to a method for protecting an electrical modular unit (8) from overcurrent damage by virtue of an inductive component (38) converting electrical energy into magnetic and thermal energy, in which a bypass (24, 24a-c) bypasses the inductive component (38) during regular operation of the modular unit (8) and current flows via the bypass (24, 24a-c). In order to reduce current spikes in the event of a surge current without significantly enlarging the semiconductor switching the circuit inductance for the commutation circuit, it is proposed that the bypass (24, 24a-c) is opened by an overcurrent flowing through said bypass which is above a current value that can be achieved during fault-free operation of the modular unit (8), with the result that more current is forced through the inductive component (38) than residual current flows through the bypass (24, 24a-c). 本发明涉及种用于保护电部件(8)免受过电流损坏的方法，其中感性组件(38)将电能转换为磁能和热能，其中旁路(24，24a-c)在部件(8)的常规运行中跨接感性组件(38)并且电流经过旁路(24，24a-c)流动。为了减小电流冲击时的电流峰值，而不明显增大用于切
Bibliography:Application Number: CN201480077826