Patents by Inventor Graeme N. McClure
Graeme N. McClure has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6867958Abstract: A system and methods that enable a restoration scheme for power distribution systems that is independent of power distribution system component configuration, the number of power distribution system components, and component settings are provided. In a power distribution system, a number of intelligent reclosers having restoration control modules are deployed that execute a restoration scheme. The intelligent reclosers constantly poll cooperating power distribution lines to determine changes in current or voltage provided by the power distribution lines. In the event of a power distribution system fault, the reclosers act in accordance to a predefined restoration scheme to reanimate the unaffected portions of the failing power distribution system.Type: GrantFiled: December 27, 2000Date of Patent: March 15, 2005Assignee: ABB Technology AGInventors: Graeme N. McClure, Jeffrey L. McElray, Sr., Robert A. Smith, Carl LaPlace, David G. Hart, William M. Egolf
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Publication number: 20040105204Abstract: A recloser is adaptively controlled so that it will operate in a manner responsive to prevailing conditions such as time of day, day of week, and/or load current. A protection setting group is stored in a memory accessible by the recloser controller, and contains a set of instructions for controlling the recloser based on the prevailing conditions. The prevailing conditions are continuously monitored, and the control of the recloser is based on the prevailing conditions and the protection setting group.Type: ApplicationFiled: November 10, 2003Publication date: June 3, 2004Applicant: ABB Technology AGInventors: Jeffrey L. McElray, Carl J. LaPlace, David G. Hart, William M. Egolf, Graeme N. McClure
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Patent number: 6735534Abstract: A recloser trips on one phase for single-phase only fault conditions, or all phases for multi-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, and C). If a fault is detected on one phase, then a timer is started and subsequently decremented. If the timer finishes counting down while the fault is still present, then it is determined if any of the other two phases are timing a fault. If so, then all three phases are tripped; otherwise, only the faulted phase is tripped.Type: GrantFiled: March 16, 2001Date of Patent: May 11, 2004Assignee: ABB Technology AGInventors: Graeme N. McClure, Carl J. LaPlace, David G. Hart, William M. Egolf
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Patent number: 6735533Abstract: A recloser trips on one phase for single-phase only fault conditions, two phases for two-phase fault conditions, or all three phases for three-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, and C). If a fault is detected on one phase, then a timer is started and subsequently decremented. If the timer finishes counting down while the fault is still present, then it is determined if any of the other two phases are timing a fault. If so, then those phases having a fault are tripped. Thus, only the faulted phase(s) is (are) tripped.Type: GrantFiled: March 16, 2001Date of Patent: May 11, 2004Assignee: ABB Technology AGInventors: Graeme N. McClure, Carl J. LaPlace, David G. Hart, William M. Egolf
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Patent number: 6707655Abstract: A recloser is adaptively controlled so that it will operate in a manner responsive to prevailing conditions such as time of day, day of week, and/or load current. A protection setting group is stored in a memory accessible by the recloser controller, and contains a set of instructions for controlling the recloser based on the prevailing conditions. The prevailing conditions are continuously monitored, and the control of the recloser is based on the prevailing conditions and the protection setting group.Type: GrantFiled: December 27, 2000Date of Patent: March 16, 2004Assignee: ABB Technology AGInventors: Jeffrey L. McElray, Sr., Carl J. LaPlace, David G. Hart, William M. Egolf, Graeme N. McClure
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Patent number: 6687573Abstract: An automatic power restoration device has a modifiable end point. The end point is indicative of the operational parameters of the automatic power restoration device. A user can modify the end point and thus the operational parameters of the automatic power restoration device. The end point can be modified according to the protection characteristics of other fault protection devices within a power system.Type: GrantFiled: March 12, 2001Date of Patent: February 3, 2004Assignee: ABB Technology AGInventors: William M. Egolf, David G. Hart, Carl J. LaPlace, Graeme N. McClure
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Patent number: 6667866Abstract: A three phase trip of a power line is prevented in a power distribution network delivering electrical power through multiple current carrying conductors and a neutral/ground line. The three phase trip is prevented after a change in the current in the neutral/ground line caused by a partial trip of a recloser. A partial trip is detected in the power distribution network, and then a threshold current is automatically adjusted from a first level to a second level for the neutral/ground line.Type: GrantFiled: December 28, 2000Date of Patent: December 23, 2003Assignee: ABB Technology AGInventors: Carl J. LaPlace, David G. Hart, William M. Egolf, Graeme N. McClure
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Publication number: 20020131222Abstract: A recloser trips on one phase for single-phase only fault conditions, two phases for two-phase fault conditions, or all three phases for three-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, and C). If a fault is detected on one phase, then a timer is started and subsequently decremented. If the timer finishes counting down while the fault is still present, then it is determined if any of the other two phases are timing a fault. If so, then those phases having a fault are tripped. Thus, only the faulted phase(s) is (are) tripped.Type: ApplicationFiled: March 16, 2001Publication date: September 19, 2002Inventors: Graeme N. McClure, Carl J. LaPlace, David G. Hart, William M. Egolf
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Publication number: 20020133304Abstract: A recloser trips on one phase for single-phase only fault conditions, or all phases for multi-phase fault conditions. During power delivery, the recloser monitors the three phases of a power line (e.g., phases A, B, and C). If a fault is detected on one phase, then a timer is started and subsequently decremented. If the timer finishes counting down while the fault is still present, then it is determined if any of the other two phases are timing a fault. If so, then all three phases are tripped; otherwise, only the faulted phase is tripped.Type: ApplicationFiled: March 16, 2001Publication date: September 19, 2002Inventors: Graeme N. McClure, Carl J. LaPlace, David G. Hart, William M. Egolf
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Publication number: 20020080539Abstract: A system and methods that enable a restoration scheme for power distribution systems that is independent of power distribution system component configuration, the number of power distribution system components, and component settings are provided. In a power distribution system, a number of intelligent reclosers having restoration control modules are deployed that execute a restoration scheme. The intelligent reclosers constantly poll cooperating power distribution lines to determine changes in current or voltage provided by the power distribution lines. In the event of a power distribution system fault, the reclosers act in accordance to a predefined restoration scheme to reanimate the unaffected portions of the failing power distribution system.Type: ApplicationFiled: December 27, 2000Publication date: June 27, 2002Inventors: Graeme N. McClure, Jeffrey L. McElray, Robert A. Smith, Carl LaPlace, David G. Hart, William M. Egolf
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Publication number: 20020080540Abstract: A recloser is adaptively controlled so that it will operate in a manner responsive to prevailing conditions such as time of day, day of week, and/or load current. A protection setting group is stored in a memory accessible by the recloser controller, and contains a set of instructions for controlling the recloser based on the prevailing conditions. The prevailing conditions are continuously monitored, and the control of the recloser is based on the prevailing conditions and the protection setting group.Type: ApplicationFiled: December 27, 2000Publication date: June 27, 2002Inventors: Jeffrey L. McElray, Carl J. LaPlace, David G. Hart, William M. Egolf, Graeme N. McClure
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Publication number: 20010034568Abstract: An automatic power restoration device has a modifiable end point. The end point is indicative of the operational parameters of the automatic power restoration device. A user can modify the end point and thus the operational parameters of the automatic power restoration device. The end point can be modified according to the protection characteristics of other fault protection devices within a power system.Type: ApplicationFiled: March 12, 2001Publication date: October 25, 2001Inventors: William M. Egolf, David G. Hart, Carl J. LaPlace, Graeme N. McClure