Patents by Inventor Robert Lopez, JR.
Robert Lopez, JR. 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: 11762447Abstract: A power supply includes a Primary or “high voltage” side and a Secondary or “low voltage” side. The primary side has boost stage circuitry that includes a boost stage controller that causes the boost stage circuitry to provide electrical energy, at least at a minimum boost voltage, to an energy storage capacitor. The energy storage capacitor may be charged by electrical energy at the minimum boost voltage and discharge electrical energy during a ride through event to power the electronic device.Type: GrantFiled: December 22, 2021Date of Patent: September 19, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Josh Carver, Robert Lopez, Jr., Arkanatha Sastry, Veselin Skendzic
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Publication number: 20230195194Abstract: A power supply includes a Primary or “high voltage” side and a Secondary or “low voltage” side. The primary side has boost stage circuitry that includes a boost stage controller that causes the boost stage circuitry to provide electrical energy, at least at a minimum boost voltage, to an energy storage capacitor. The energy storage capacitor may be charged by electrical energy at the minimum boost voltage and discharge electrical energy during a ride through event to power the electronic device.Type: ApplicationFiled: December 22, 2021Publication date: June 22, 2023Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Josh Carver, Robert Lopez, Jr., Arkanatha Sastry, Veselin Skendzic
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Patent number: 11650264Abstract: The present disclosure pertains to systems and methods for monitoring a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. A first current transformer is disposed between the stack of capacitors and the first ground connection. The current transformer provides an electrical signal corresponding to a current associated with the CCVT. A second transformer is disposed to provide a second electrical signal related to the CCVT. The second signal may be a voltage signal or a current signal. An intelligent electronic device (IED) in electrical communication with the current measurement devices monitors a health factor comprising a ratio of magnitudes or a difference between phases from the transformers at a single frequency. The health factor is compared against an acceptable range and an alarm is generated when the range is exceeded.Type: GrantFiled: October 26, 2021Date of Patent: May 16, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Travis C. Mallett, Robert Lopez, Jr.
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Patent number: 11617269Abstract: Current measurement devices for printed circuit board mounting are disclosed herein. The current measurement devices include a hollow and flexible core to improve response to a primary signal and decrease weight. The current measurement device includes a housing with guides to maintain alignment of the core. An electromagnetic shield may be placed between the circumference of the core and the housing. The housing may include apertures to facilitate washing. The current measurement device may include a primary conductor external to the housing.Type: GrantFiled: July 20, 2021Date of Patent: March 28, 2023Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Brent R. Lee, Veselin Skendzic, Arkanatha Sastry, Robert Lopez, Jr., Jeevan Jalli
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Publication number: 20230024511Abstract: Current measurement devices for printed circuit board mounting are disclosed herein. The current measurement devices include a hollow and flexible core to improve response to a primary signal and decrease weight. The current measurement device includes a housing with guides to maintain alignment of the core. An electromagnetic shield may be placed between the circumference of the core and the housing. The housing may include apertures to facilitate washing. The current measurement device may include a primary conductor external to the housing.Type: ApplicationFiled: July 20, 2021Publication date: January 26, 2023Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Brent R. Lee, Veselin Skendzic, Arkanatha Sastry, Robert Lopez, JR., Jeevan Jalli
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Publication number: 20220043070Abstract: The present disclosure pertains to systems and methods for monitoring a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. A first current transformer is disposed between the stack of capacitors and the first ground connection. The current transformer provides an electrical signal corresponding to a current associated with the CCVT. A second transformer is disposed to provide a second electrical signal related to the CCVT. The second signal may be a voltage signal or a current signal. An intelligent electronic device (IED) in electrical communication with the current measurement devices monitors a health factor comprising a ratio of magnitudes or a difference between phases from the transformers at a single frequency. The health factor is compared against an acceptable range and an alarm is generated when the range is exceeded.Type: ApplicationFiled: October 26, 2021Publication date: February 10, 2022Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Travis C. Mallett, Robert Lopez, JR.
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Patent number: 11187727Abstract: The present disclosure pertains to systems and methods for monitoring a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. A first current transformer is disposed between the stack of capacitors and the first ground connection. The current transformer provides an electrical signal corresponding to a current associated with the CCVT. A second current transformer is disposed between a primary winding of a step-down transformer associated with the CCVT and a second ground connection. An intelligent electronic device (IED) in electrical communication with the current measurement devices monitors a ratio of magnitudes from the current transformers at a single frequency. The ratio is compared against an acceptable range. When the ratio exceeds the acceptable range, an alarm is generated.Type: GrantFiled: April 29, 2019Date of Patent: November 30, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Travis C Mallett, Robert Lopez, Jr.
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Patent number: 11105832Abstract: The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. Electrical signals from accessible portions of the CCVT are used to detect traveling waves. Current and/or voltage signals may be used. In various embodiments, a single current may be used. The traveling waves may be used to detect a fault on the electric power delivery system.Type: GrantFiled: October 6, 2020Date of Patent: August 31, 2021Assignee: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Bogdan Z. Kasztenny, Veselin Skendzic, Travis C. Mallett, Robert Lopez, Jr.
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Publication number: 20210018538Abstract: The present disclosure pertains to systems and methods for detecting traveling waves in electric power delivery systems. In one embodiment, a system comprises a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. Electrical signals from accessible portions of the CCVT are used to detect traveling waves. Current and/or voltage signals may be used. In various embodiments, a single current may be used. The traveling waves may be used to detect a fault on the electric power delivery system.Type: ApplicationFiled: October 6, 2020Publication date: January 21, 2021Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Edmund O. Schweitzer, III, Bogdan Z. Kasztenny, Veselin Skendzic, Travis C. Mallett, Robert Lopez, JR.
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Publication number: 20200341035Abstract: The present disclosure pertains to systems and methods for monitoring a capacitance-coupled voltage transformer (CCVT) in electrical communication with the electric power delivery system, the CCVT comprising a stack of capacitors and an electrical contact to a first ground connection. A first current transformer is disposed between the stack of capacitors and the first ground connection. The current transformer provides an electrical signal corresponding to a current associated with the CCVT. A second current transformer is disposed between a primary winding of a step-down transformer associated with the CCVT and a second ground connection. An intelligent electronic device (IED) in electrical communication with the current measurement devices monitors a ratio of magnitudes from the current transformers at a single frequency. The ratio is compared against an acceptable range. When the ratio exceeds the acceptable range, an alarm is generated.Type: ApplicationFiled: April 29, 2019Publication date: October 29, 2020Applicant: Schweitzer Engineering Laboratories, Inc.Inventors: Travis C. Mallett, Robert Lopez, JR.