AMMETER FOR BUS

AMMETER FOR BUS

PURPOSE:To downsize ammeter for bus by detecting current flowing through a bus by means of a plurality of current detectors located at same position of bus. CONSTITUTION:A plurality of coils 3a, 3b are wound around an annular insulator core 2 disposed around a bus 1 and an external impedance ZL conn...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: OGURA SHINZO
Format: Patent
Sprache:eng
Schlagworte:
BASIC ELECTRIC ELEMENTS
ELECTRICITY
INDUCTANCES
MAGNETS
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
TESTING
TRANSFORMERS
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:PURPOSE:To downsize ammeter for bus by detecting current flowing through a bus by means of a plurality of current detectors located at same position of bus. CONSTITUTION:A plurality of coils 3a, 3b are wound around an annular insulator core 2 disposed around a bus 1 and an external impedance ZL connected with the coils 3a, 3b is set as follows; ZL>N.E.(M-1)/(5X10.I) where, M: number of coils, N: number of turns of each coil, E: voltage induced in the coil (V), I: current to be measured (A). Since a plurality of coils 3a, 3b are wound around a common core 2 disposed around the bus 1, ammeter can be downsized and since the external impedance ZL connected with the coils 3a, 3b is set higher than a predetermined value, accuracy does not deteriorate in the measurement of current.