公开(公告)号：JPH099609A

公开(公告)日：1997-01-10

申请号：JP14704796

申请日：1996-06-10

Applicant: ABB MANAGEMENT AG

Inventor： ROBERUTO SHIIRINGU

IPC: H02M1/00 ,  H02M1/08 ,  H02M1/38 ,  H02M7/04 ,  H02M7/519 ,  H02M7/515

Abstract: PROBLEM TO BE SOLVED: To obtain an apparatus which is released electrically from a converter circuit device and which detects the triggering of a switch for the converter circuit device operated independently by a method wherein the apparatus is coupled electromagnetically and a voltage which is guided to a current-limiter conductor when the switch is triggered is detected. SOLUTION: A conductor loop 5 is arranged at the end part of a current- limiter coil Lb. The conductor loop 5 is coupled magnetically to the coil Lb having a mutual inductance M. A triggering generates a current change at the coil Lb, and, as a result, a flux change is generated. The flux change guides a voltage to the conductor loop 5. The voltage is detected in a detection circuit which is connected to the conductor loop 5, and it is evaluated by a downstream-side connection evaluation circuit. Thereby, an apparatus is released electrically from a converter circuit device, and it is possible to detect the triggering of a coil for the converter circuit device which is operated independently.