CIRCUIT ARRANGEMENT FOR MONITORING AN ELECTRICAL INSULATION

A circuit configuration monitors the electrical insulation of an electrically conductive part in relation to a first pole and a second pole of an electrical power network for example, an electrical drive network in a hybrid vehicle. The circuit configuration is characterized in that between the electrically conductive part and the two poles, a voltage divider having at least two resistors is arranged in each case. A measuring unit is associated with each of the two voltage dividers and provided for measuring a partial voltage, which drops via at least one of the resistors. A switch unit is associated each with the two voltage dividers and is provided for alternately bypassing at least one of the resistors.