(19)
(11) EP 2 555 004 A8

(12) CORRECTED EUROPEAN PATENT APPLICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 A1)

(48) Corrigendum issued on:
08.05.2013 Bulletin 2013/19

(88) Date of publication A3:
06.02.2013 Bulletin 2013/06

(43) Date of publication:
06.02.2013 Bulletin 2013/06

(21) Application number: 12004394.8

(22) Date of filing: 11.06.2012
(51) International Patent Classification (IPC): 
G01R 19/165(2006.01)
H01H 9/56(2006.01)
H02H 9/04(2006.01)
 H01H 9/54(2006.01)
H02H 3/28(2006.01)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA ME

(30) Priority: 30.03.2012 US 201213436103
04.08.2011 US 201113198137
15.09.2011 US 201161535170 P

(71) Applicant: Electronic Systems Protection, Inc.
Zebulon NC 27597 (US)

(72) Inventors:
  • Billingsley, Richard J.
    Rossland, British Columbia V0G 1Y0 (CA)
  • Dawley, Robert A.
    Creedmoor, North Carolina 27522 (US)
  • Benton, Andrew
    Blue Bell, Pennsylvania 19422 (US)

(74) Representative: Verscht, Thomas Kurt Albert 
Josephsburgstrasse 88 A
81673 München
81673 München (DE)

   


(54) Power monitoring and management with remote access


(57) A supply voltage monitor includes a switch circuit that enables coupling of an AC power supply to a load. A control circuit switches the switch circuit from a non-conductive state to a conductive state, and vice-versa, based upon a state of a state machine implemented by the control circuit. The control circuit further reports anomalies in process variables, such as voltage and current levels, temperature, etc., based on the state of the state machine. The transition criteria of the state machine, i.e., the criteria that is met to compel a transition in state, is selectable by a user by way of a user interface. The transition criteria may correspond to different power levels that define a range over which the power is considered nominal and a range over which the power is considered to be an anomaly. The transition criteria additionally define what type of anomalies are reported without a change in the conductivity of the switch circuit.