Patents by Inventor Joseph W. Ruta
Joseph W. Ruta 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: 6963475Abstract: A control method and arrangement that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities to optimize operation of the power electronic system. The arrangement increases reliability of operation and optimizes the continuous supply of power to a load. The arrangement also includes the capability for diagnosing the parameters of the power electronic switches including drive current, drive voltage and operating temperature and for communicating the status information in a coordinated fashion.Type: GrantFiled: October 22, 2004Date of Patent: November 8, 2005Assignee: S & C Electric Co.Inventors: Todd W. Klippel, Richard P. Mikosz, Ronald D. Atanus, Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta, Gregory C. Mears
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Patent number: 6950764Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: GrantFiled: August 26, 2003Date of Patent: September 27, 2005Assignee: S & C Electric Co.Inventors: Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta
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Patent number: 6944004Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: GrantFiled: August 15, 2003Date of Patent: September 13, 2005Assignee: S&C Electric Co.Inventors: Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta
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Patent number: 6941233Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: GrantFiled: August 18, 2003Date of Patent: September 6, 2005Assignee: S&C Electric Co.Inventors: Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta
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Patent number: 6917186Abstract: A control method and arrangement that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities to optimize operation of the power electronic system. The arrangement increases reliability of operation and optimizes the continuous supply of power to a load. The arrangement also includes the capability for diagnosing the parameters of the power electronic switches including drive current, drive voltage and operating temperature and for communicating the status information in a coordinated fashion.Type: GrantFiled: March 19, 2003Date of Patent: July 12, 2005Assignee: S & C Electric Co.Inventors: Todd W. Klippel, Richard P. Mikosz, Ronald D. Atanus, Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta, Gregory C. Mears
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Publication number: 20040066201Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: ApplicationFiled: August 15, 2003Publication date: April 8, 2004Inventors: Michael G. Ennis, Raymond P. O' Leary, Joseph W. Ruta
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Publication number: 20040064272Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: ApplicationFiled: August 18, 2003Publication date: April 1, 2004Inventors: Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta
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Publication number: 20040039537Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: ApplicationFiled: August 26, 2003Publication date: February 26, 2004Inventors: Michael G. Ennis, Raymond P. O'leary, Joseph W. Ruta
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Patent number: 6668232Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: GrantFiled: March 12, 2003Date of Patent: December 23, 2003Assignee: S&C Electric Co.Inventors: Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta
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Patent number: 6667601Abstract: A control arrangement and method is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities via appropriate action to optimize operation of the power electronic system. The arrangement increases reliability of operation and optimizes the continuous supply of power to a load. For example, the arrangement responds to an overheated power electronic switch by switching to an alternate power electronic switch, the overheated power electronic switch being made available as a temporary alternate path. The arrangement also includes the capability for diagnosing the power electronic switches by measuring the temperature of the power electronics switches and communicating the temperature information in a coordinated fashion with information regarding the operating status of the power electronics switches. Additionally, shorted power electronic switches are detected and appropriate action taken.Type: GrantFiled: July 11, 2002Date of Patent: December 23, 2003Assignee: S&C Electric Co.Inventors: Richard P. Mikosz, Ronald D. Atanus, Michael G. Ennis, Gregory C. Mears, Raymond P. O'Leary, Joseph W. Ruta
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Publication number: 20030218848Abstract: A control method and arrangement that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities to optimize operation of the power electronic system. The arrangement increases reliability of operation and optimizes the continuous supply of power to a load. The arrangement also includes the capability for diagnosing the parameters of the power electronic switches including drive current, drive voltage and operating temperature and for communicating the status information in a coordinated fashion.Type: ApplicationFiled: March 19, 2003Publication date: November 27, 2003Inventors: Todd W. Klippel, Richard P. Mikosz, Ronald D. Atanus, Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta, Gregory C. Mears
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Patent number: 6636101Abstract: A control arrangement and method is provided for electronic devices in which an electronic switch is maintained in a conducting state at all times other than when it is desired to render the electronic switch nonconducting. In a specific embodiment, a latched control signal is utilized which is changed by the receipt of a momentary signal to change the conducting state of the electronic switch. For example, according to one specific arrangement, the momentary signal is a secure, complex signal such that appropriate decoding and detection of the proper signal is required to change the conducting state of the electronic switch.Type: GrantFiled: December 21, 2001Date of Patent: October 21, 2003Assignee: S&C Electric Co.Inventors: Ronald D. Atanus, Gregory C. Mears, Richard P. Mikosz, Raymond P. O'Leary, Michael G. Ennis, Joseph W. Ruta
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Publication number: 20030171884Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: ApplicationFiled: March 12, 2003Publication date: September 11, 2003Inventors: Michael G. Ennis, Raymond P. O'Leary, Joseph W. Ruta
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Patent number: 6601002Abstract: A control arrangement and method is provided for detecting and responding to disturbances in electrical power systems. In a preferred arrangement, an integration is initiated that is based on a comparison of actual voltage of a source and a reference voltage. When the integration exceeds a predetermined value, the source is considered unreliable. Also in a preferred arrangement, a determination is made as to whether or not the disturbance is a downstream fault condition. For example, this is useful for applications where a transfer is made from a first source to a second source when predetermined disturbances are detected. In this manner, the transfer of the load to a second source is avoided which would continue the supply of the downstream fault. Additionally, the arrangement distinguishes between various degrees of disturbances to permit appropriate response based on the severity and type of disturbance. For example, a first immediate response, i.e.Type: GrantFiled: April 24, 2000Date of Patent: July 29, 2003Assignee: S&C Electric Co.Inventors: Michael G Ennis, Raymond P. O'Leary, Joseph W. Ruta
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Publication number: 20030043520Abstract: A control arrangement and method is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities via appropriate action to optimize operation of the power electronic system. The arrangement increases reliability of operation and optimizes the continuous supply of power to a load For example, the arrangement responds to an overheated power electronic switch by switching to an alternate power electronic switch, the overheated power electronic switch being made available as a temporary alternate path. The arrangement also includes the capability for diagnosing the power electronic switches by measuring the temperature of the power electronics switches and communicating the temperature information in a coordinated fashion with information regarding the operating status of the power electronics switches. Additionally, shorted power electronic switches are detected and appropriate action taken.Type: ApplicationFiled: July 11, 2002Publication date: March 6, 2003Inventors: Richard P. Mikosz, Ronald D. Atanus, Michael G. Ennis, Gregory C. Mears, Raymond P. O'Leary, Joseph W. Ruta
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Patent number: 6504696Abstract: A control arrangement and method is provided that monitors the condition and operating parameters of a power electronic system having power electronic devices and responds to various detected abnormalities via appropriate action to optimize operation of the power electronic system. The arrangement increases reliability of operation and optimizes the continuous supply of power to a load. For example, the arrangement responds to an overheated power electronic switch by switching to an alternate power electronic switch, the overheated power electronic switch being made available as a temporary alternate path. The arrangement also includes the capability for diagnosing the power electronic switches by measuring the temperature of the power electronics switches and communicating the temperature information in a coordinated fashion with information regarding the operating status of the power electronics switches. Additionally, shorted power electronic switches are detected and appropriate action taken.Type: GrantFiled: April 24, 2000Date of Patent: January 7, 2003Assignee: S+C Electric Co.Inventors: Richard P. Mikosz, Ronald D. Atanus, Michael G. Ennis, Gregory C. Mears, Raymond P. O'Leary, Joseph W. Ruta
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Publication number: 20020060599Abstract: A control arrangement and method is provided for electronic devices in which an electronic switch is maintained in a conducting state at all times other than when it is desired to render the electronic switch nonconducting. In a specific embodiment, a latched control signal is utilized which is changed by the receipt of a momentary signal to change the conducting state of the electronic switch. For example, according to one specific arrangement, the momentary signal is a secure, complex signal such that appropriate decoding and detection of the proper signal is required to change the conducting state of the electronic switch.Type: ApplicationFiled: December 21, 2001Publication date: May 23, 2002Inventors: Ronald D. Atanus, Gregory C. Mears, Richard P. Mikosz, Raymond P. O'Leary, Michael g. Ennis, Joseph W. Ruta
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Patent number: 6331798Abstract: A control arrangement and method is provided for a power electronic system configured as a high-speed source-transfer switching systems (HSSTSS). The HSSTSS supplies an electrical load with alternating current from either a first source or a second source via respective first and second solid-state switches. The HSSTSS also includes a controller that samples the voltage waveforms of each of the first and second sources to detect when transfer between the sources is desirable, e.g. outages or voltage that is either too low or too high. The controller provides appropriate control signals to control operation of the solid-state switches and transfer supply of the load therebetween. The control arrangement avoids undesirable current flow between sources via a comparison of the voltages of the sources and current in the outgoing source, i.e.Type: GrantFiled: April 24, 2000Date of Patent: December 18, 2001Assignee: S&C Electric CompanyInventors: Raymond P. O'Leary, Michael G. Ennis, Joseph W. Ruta, Anthony F. Segredo
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Patent number: 4916573Abstract: A control circuit is provided for a circuit interrupter that achieves an inverse-time characteristic for overcurrents that include instantaneous current levels higher than the interrupting capability of the circuit interrupter by synchronizing the operation of the circuit interrupter to ensure that circuit interruption takes place when the instantaneous current is within the interrupting capability of the circuit interrupter. This interrupting capability is similar to let-through current and is defined by the instantaneous magnitude of the current at the time of interruption or at a particular stage thereof. The control circuit is responsive to a time-current characteristic signal generator that provides a time-current signal in response to overcurrent after the passage of a time delay that is inversely related to the overcurrent.Type: GrantFiled: July 15, 1988Date of Patent: April 10, 1990Assignee: S & C Electric CompanyInventor: Joseph W. Ruta
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Patent number: 4839770Abstract: An arrangement is provided for checking the validity of a sensed-current signal from a current-sensing device. The sensed-current signal represents the current in a line. An associated control circuit utilizes the sensed-current signal to indicate or predict the presence of undesired overcurrent conditions. When such conditions may be present, the sensed-current signal is checked to determine if the sensed-current signal is valid; i.e., whether the sensed-current signal accurately represents the current in the line. If the sensed-current signal is invalid, no trip signal is generated to interrupt the current. If the sensed-current signal is valid, the control circuit generates a trip signal to control operation of a circuit-interrupting device. In a particular arrangement, the load on the current-sensing device is changed to determine if the sensed-current signal is valid.Type: GrantFiled: January 25, 1988Date of Patent: June 13, 1989Assignee: S&C Electric CompanyInventor: Joseph W. Ruta