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1. 发明授权

US08994379B2 Method and device for insulation monitoring of non-grounded electrical DC and AC grids 有权
标题翻译：非接地电气直流和交流电网绝缘监测方法和装置
公开(公告)号：US08994379B2
公开(公告)日：2015-03-31
申请号：US13297022
申请日：2011-11-15
申请人： Frank Brenk , Franz-Otto Witte , Wolfram Strepp
发明人： Frank Brenk , Franz-Otto Witte , Wolfram Strepp
IPC分类号： G01R27/18 , G01R31/02
CPC分类号： G01R27/18 , G01R31/025
摘要： Exemplary methods are directed to insulation monitoring of non-grounded electrical DC power supply systems and AC power supply systems which have a resistive (Rf) and capacitive (Cf) insulation impedance between the power supply system and ground. The method includes applying a pulsed AC voltage (U0) having alternately different pulsed voltage values to the power supply system to be monitored via a resistive system interface (Ri) between the power supply system and ground. The insulation impedance (Rf) between the power supply system and ground is determined using time profiles of transient processes of the measurement voltage (Vm) prior to transient recovery of the power supply system to the respective pulsed voltage value (U0) of two polarity-inverted pulsed voltage value application processes.
摘要翻译：示例性方法涉及在电源系统和地之间具有电阻（Rf）和电容（Cf）绝缘阻抗的非接地电力直流电源系统和交流电源系统的绝缘监测。该方法包括通过电源系统和地之间的电阻系统接口（Ri）将具有交替不同的脉冲电压值的脉冲AC电压（U0）施加到待监控的电源系统。电源系统与接地之间的绝缘阻抗（Rf）使用电源系统瞬态恢复之前的测量电压（Vm）的瞬态过程的时间曲线确定为两个极性电压系统的相应脉冲电压值（U0）反向脉冲电压值应用过程。

2. 发明申请

US20120119754A1 METHOD AND DEVICE FOR INSULATION MONITORING OF NON-GROUNDED ELECTRICAL DC AND AC GRIDS 有权
标题翻译：用于非接地电气直流和交流电网绝缘监测的方法和装置
公开(公告)号：US20120119754A1
公开(公告)日：2012-05-17
申请号：US13297022
申请日：2011-11-15
申请人： Frank Brenk , Franz-Otto Witte , Wolfram Strepp
发明人： Frank Brenk , Franz-Otto Witte , Wolfram Strepp
IPC分类号： G01R31/02
CPC分类号： G01R27/18 , G01R31/025
摘要： Exemplary methods are directed to insulation monitoring of non-grounded electrical DC power supply systems and AC power supply systems which have a resistive (Rf) and capacitive (Cf) insulation impedance between the power supply system and ground. The method includes applying a pulsed AC voltage (U0) having alternately different pulsed voltage values to the power supply system to be monitored via a resistive system interface (Ri) between the power supply system and ground. The insulation impedance (Rf) between the power supply system and ground is determined using time profiles of transient processes of the measurement voltage (Vm) prior to transient recovery of the power supply system to the respective pulsed voltage value (U0) of two polarity-inverted pulsed voltage value application processes.
摘要翻译：示例性方法涉及在电源系统和地之间具有电阻（Rf）和电容（Cf）绝缘阻抗的非接地电力直流电源系统和交流电源系统的绝缘监测。该方法包括通过电源系统和地之间的电阻系统接口（Ri）将具有交替不同的脉冲电压值的脉冲AC电压（U0）施加到待监控的电源系统。电源系统与接地之间的绝缘阻抗（Rf）使用电源系统瞬态恢复之前的测量电压（Vm）的瞬态过程的时间曲线确定为两个极性电压系统的相应脉冲电压值（U0）反向脉冲电压值应用过程。

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