MONITORING DEVICE AND METHOD OF MONITORING AN IMPEDANCE OF A PROTECTIVE CONDUCTOR, AND CHARGING CONTROL UNIT

A monitoring device for monitoring an impedance of a protective conductor. The monitoring device has a first voltage divider for connection to a voltage source including a series connection to a first resistor and a second resistor. The second resistor has a resistance value which corresponds to a t...

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Bibliographische Detailangaben
Hauptverfasser:	KARRASCH, Gregor, KIPP, Stefan, ENGERT, Stefan, STROSS, Stefan
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A monitoring device for monitoring an impedance of a protective conductor. The monitoring device has a first voltage divider for connection to a voltage source including a series connection to a first resistor and a second resistor. The second resistor has a resistance value which corresponds to a threshold value for the impedance of the protective conductor. A second voltage divider includes a series connection to a third resistor and a bridge diode and a connection to the first resistor at a first end of the third resistor and connectable to a second end of the third resistor and to the protective conductor. A measuring device is provided for the detection of a bridge voltage between a first node and a second node if the impedance of the protective conductor is greater than the value of the second resistor.