THREE-WIRE TYPE SENSE METER

PURPOSE:To improve the efficiency of cable confirmation work by inserting a diode to a lead wire at the ground side and to another lead wire in forward direction respectively. CONSTITUTION:Three lead wires 2, 3 and 4 are connected to star connection and the lead wire 4 is at the ground side. And a d...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HOSODA TATSUHIRO, HORIMIZU ATSUSHI
Format:	Patent
Sprache:	eng
Schlagworte:	CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY GENERATION INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINEDOPTICAL AND ELECTRIC CABLES OR LINES MEASURING MEASURING ELECTRIC VARIABLES MEASURING MAGNETIC VARIABLES PHYSICS TESTING
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	PURPOSE:To improve the efficiency of cable confirmation work by inserting a diode to a lead wire at the ground side and to another lead wire in forward direction respectively. CONSTITUTION:Three lead wires 2, 3 and 4 are connected to star connection and the lead wire 4 is at the ground side. And a diode D1 is inserted to the lead wire 4 in forward direction with respect to other two lead wires 2 and 3. Also, a diode Dz is inserted to the lead wire 3 in forward direction with respect to other lead wires 2 and 4, and a resistor R is inserted in parallel to this diode D2. The resistor R is desired to be several MOMEGA to tens of MOMEGA. Because of this, a situation the same as a removed sense meter can be created at the time of measuring insulation resistance. Also, it can achieve the function as a short-circuit lead wire when judging whether a cable is of hot-line or not.