×

INPUT CIRCUIT FOR CURRENT TRANSFORMER

  • US 20150219691A1
  • Filed: 01/22/2015
  • Published: 08/06/2015
  • Est. Priority Date: 01/23/2014
  • Status: Active Grant
First Claim
Patent Images

1. A transformer for monitoring current in a power cable comprising:

  • (a) said transformer magnetically linked with said power cable connected to an electrical device, said transformer producing a changing transformer signal in response to the presence of a changing current within said power cable;

    (b) an input circuit located proximate to said transformer and having an output terminal and being electrically connected to said transformer so as to receive said changing transformer signal, said input circuit producing, in response to receiving said changing transformer signal, one of a first signal representative of said changing current, and a first circuit condition at said output terminal of said input circuit representative of said changing current in said power cable;

    (c) wherein said input circuit includes a resistor set having an effective resistance that comprises a plurality of resistors, wherein at least one of said resistors is not electrically connected to the remaining said plurality of resistors.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×