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MI 3152(H) EurotestXC (2,5 kV) Prüfungen und Messungen
131
7.14 Spannungsabfall
Der Spannungsabfall wird auf der Grundlage der Differenz zwischen der Leitungsimpedanz an
den Anschlusspunkten (Steckdosen) und der Leitungsimpedanz am Referenzpunkt
(üblicherweise die Impedanz an der Schalttafel) berechnet.
Abbildung 7.48: Menü Spannungsabfallmessung
Prüfparameter / Grenzwerte
Sicherungstyp
Auswahl des Sicherungstyps [Aus, gG, NV, B, C, D, K, Eigener]
Sicherung I
Nennstrom der gewählten Sicherung
Sicherung t
Maximale Auslösezeit der gewählten Sicherung
I (U) 1)
Nennstrom für U Messung (Eigener Wert)
Ik-Faktor
Ik-Faktor [0,20 ... 3,00]
Prüfung 2)
Prüfung [Off, L-N, L/L, L1-N, L2-N, L3-N, L1-L2, L1-L3, L2-L3]
Erdungssystem
Für weitere Informationen siehe Kapitel 4.6.5 Einstellungen.
Grenzwert (ΔU)
Maximaler Spannungsabfall [3.0 % - 9.0 %]
1) Anwendbar, wenn der Sicherungstyp auf Aus oder Eigener eingestellt ist.
2) Mit Prüfkabel oder Commander-Prüfstecker wird der Spannungsabfall ungeachtet der
Einstellung gleichermaßen gemessen. Der Parameter ist für die Dokumentation gedacht.
Detaillierte Informationen zu den Sicherungsdaten finden Sie in der Übersicht der
Sicherungstabellen.
Anschlussplan
Abbildung 7.49: Spannungsabfallmessung Anschluss des Commander-Prüfstecker und
des 3-Leiter Prüfadapters
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