CURRENT TRANSFORMER

WIPO Patent Application WO/2012/101421

A3

A current transformer is described which comprises a housing having one or more apertures, each for receiving a primary cable or busbar, one or more magnetic cores enclosed within the housing and being positioned proximate to respective ones of the apertures so that a magnetic field is produced in a magnetic core when a primary current flows through a primary cable or busbar received through the respective aperture, and one or more secondary windings enclosed within the housing, each secondary winding being wrapped around at least a portion of a respective magnetic core so that a secondary current is induced in a secondary winding when a magnetic field is produced in the respective magnetic core. Shunt circuitry is enclosed within the housing and is connected across the secondary windings to generate a respective voltage signal for each secondary winding. A connector socket is integrally mounted to the housing for outputting the voltage signals. In this way, the labour costs incurred during installation of the current transformer can be reduced, a risk of wiring errors can be avoided, and a risk of electrocution from secondary terminals being left open-circuit is removed.

BROOKES MATTHEW (GB)

PCT/GB2012/050073

November 29, 2012

January 13, 2012

Click for automatic bibliography generation  

RAYLEIGH INSTR LTD (GB)
BROOKES MATTHEW (GB)

G01R19/15; H01F38/30; H01F38/32; H01F38/38; H02M1/00

GB658297A	1951-10-03
CN201319314Y	2009-09-30
GB2183049A	1987-05-28
CN2771996Y	2006-04-12
GB1321806A	1973-07-04
JP2006344620A	2006-12-21

SCADDAN, GARETH (London EC1N 2DY, GB)

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