发明名称 DETECTING SHORTED DIODES
摘要 A method for detecting a shorted diode in a bridge rectifier (16) comprises: determining a phase-to-phase voltage (V ab , V bc , V ca ) between two phase inputs (20) of the bridge rectifier (16), wherein a phase input (20) is provided between the two series connected diodes (26) of the respective phase; and indicating a shorted diode fault by determining whether the phase-to-phase voltage is zero for more than a commutation time (36) of the bridge rectifier (16).
申请公布号 ZA201407301(B) 申请公布日期 2015.07.29
申请号 ZA20140007301 申请日期 2014.10.08
申请人 ABB TECHNOLOGY AG 发明人 REIST,SAMUEL;VETTERLI,MANUEL;LUSCHER,MATTHIAS;RAUCHENSTEIN JUERG
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