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Centralized power reducing device, particularly for lighting installations

  • US 6,078,146 A
  • Filed: 11/10/1997
  • Issued: 06/20/2000
  • Est. Priority Date: 05/21/1997
  • Status: Expired due to Term
First Claim
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1. A centralized power reducing device, particularly for lighting installations, comprising, on each phase of the installation power source:

  • a winding (16) in series with a load (10) for varying the voltage to said load (10), said winding wound on a magnetic core (18), said magnetic core having a magnetic field controlled by a current flowing therethrough,a second winding on said magnetic core (18) to control the current flowing through the magnetic core,a multiple-tap autotransformer (22) for controlling the current, said autotransformer being connected by means of relays (24) and being controlled by a logic unit (26).

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