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Current detector and current measuring apparatus including such detector with temperature compensation

  • US 6,791,315 B2
  • Filed: 07/03/2002
  • Issued: 09/14/2004
  • Est. Priority Date: 01/06/2000
  • Status: Expired due to Fees
First Claim
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1. A residual current detection device comprising a plurality of resistive shunts for connection in respective ones of a plurality of lines through which current can flow to and from a load, and detector means sensitive to the voltage developed across each of the shunts to detect any imbalance between the currents flowing through the shunts, the detector means comprising a converter in the form of an integrated circuit mounted on and electrically connected to each of the resistive shunts and temperature compensation means, including a temperature sensor provided on or within a corresponding one of said resistive shunts or in said integrated circuit, for facilitating compensation for fluctuations in shunt resistance with variations in temperature.

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