Uninterrupted power supply device for electrical load, has electrical protection zone including transistor with specific switching time for electrically decoupling electrical load bus from adjacent electrical load bus

摘要

The device has two independent electric generation plants (EA, EB) connected electrically in parallel, where each electric generation plant includes an electrical load terminal coupled with an electrical load bus (S2). Electrical protection zones (SB-A, SB-B) are provided for insulation of electrical errors, where each electrical protection zone includes a transistor (Q10) with a switching time of less than 10 ms for electrically decoupling the electrical load bus from an adjacent electrical load bus. An independent claim is also included for a method for operating the device for uninterrupted power supply of electrical loads.