SYSTEM FOR MONITORING AND ASSESSING ELECTRICAL CIRCUITS AND METHOD OF OPERATION
First Claim
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1. A method of identifying a relay, said method operable via a processor, said method comprising:
- coupling a first plurality of sensors to a relay trip ladder, wherein each of said first plurality of sensors is associated with one of a plurality of relays;
collecting a first electrical data from said first plurality of sensors;
identifying a trip signal on said trip ladder;
determining a first relay of said plurality of relays from said first electrical data, wherein said first relay generated said trip signal.
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Abstract
A system for collecting data and monitoring the operation of electrical circuits, such as branch circuits at a substation is provided. The system collects data from a plurality of sensors coupled to a plurality of electrical equipment associated with a circuit. The data from the sensors is collected and used to determine the activation of the electrical equipment, such as a protective relay for example. The data is further transformed to allow assessment of the circuit'"'"'s performance against desired parameters.
44 Citations
31 Claims
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1. A method of identifying a relay, said method operable via a processor, said method comprising:
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coupling a first plurality of sensors to a relay trip ladder, wherein each of said first plurality of sensors is associated with one of a plurality of relays; collecting a first electrical data from said first plurality of sensors; identifying a trip signal on said trip ladder; determining a first relay of said plurality of relays from said first electrical data, wherein said first relay generated said trip signal. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of identifying an activated relay in a protective relay cabinet, where said protective relay cabinet includes a first relay, a second relay and a third relay, each of said first relay, said second relay and said third relay being operably coupled to a circuit breaker by a trip ladder, said method operable via a processor, said method comprising:
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coupling a first sensor to said trip ladder adjacent said first relay; coupling a second sensor to said trip ladder adjacent said second relay; coupling a third sensor to said trip ladder adjacent said third relay; detecting a trip signal on said trip ladder; determining which of said first sensor, said second sensor and said third sensor measured said trip signal; and
,determining said second relay generated said trip signal. - View Dependent Claims (9, 10, 11)
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12. A method of assessing an electrical circuit, said method operable via a processor, said method comprising:
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collecting a first data set representing a first electrical parameter; collecting a second data set representing a second electrical parameter; creating a graphical plot of said first data set and said second data set; comparing a characteristic of said graphical plot to a threshold parameter; determining that said threshold parameter has been violated by said characteristic. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21)
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22. A method of assessing an electrical circuit, said method operable via a processor, said method comprising:
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collecting a first data set representing a first electrical parameter; collecting a second data set representing a second electrical parameter; collecting a third data set representing a third electrical parameter; storing said first data set, said second data set and said third data set; generating a polar plot of said stored first data set, said stored second data set, and said stored third data set; comparing a characteristic of said polar plot to a threshold parameter; initiating an action if said threshold parameter has been violated by said characteristic. - View Dependent Claims (23, 24, 25, 26, 27, 28)
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29. A system for assessing an electrical circuit comprising:
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a first sensor measuring a first electrical parameter of said electrical circuit; a second sensor measuring a second electrical parameter of said electrical circuit; a data storage device operably coupled to store data received from said first sensor and said second sensor; and
,a controller responsive to executable computer instructions when executed on the controller for generating a polar plot of said stored data, said controller further responsive to executable instructions to compare a characteristic of said polar plot to a threshold parameter and determining if said threshold parameter has been exceeded. - View Dependent Claims (30, 31)
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Specification