Method and apparatus for a remote electric power line conductor faulted circuit current, conductor temperature, conductor potential and conductor strain monitoring and alarm system
First Claim
1. A method for determining a nominal and maximum current flow in an electric power line conductor under faulted circuit conditions, conductor temperature, conductor strain, and conductor line potential, the method comprising:
- (a) in a field environment, applying a specific frequency activation signal and code key from an exciter positioned proximate to the a faulted circuit monitoring apparatus located on the power line conductor;
(b) activating said faulted circuit monitoring apparatus by way of said specific frequency activation signal and code key;
(c) at the exciter, detecting a data signal from the faulted circuit monitoring apparatus, the data produced by modulating a specific frequency faulted circuit monitor in response to measured current, temperature, line potential and strain parameters;
(d) at the exciter, receiving the parametric data from the data signal;
(e) associating the faulted circuit current magnitude, temperature, strain and potential with the conductor phase information for the faulted circuit monitor apparatus;
(f) repeating steps (a), (b), (c), (d) and (e) for all power line phase conductors on an electric power line;
(g) and storing the parametric data and phase conductor information in the memory of the exciter for downloading to a host pc.
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Accused Products
Abstract
An electric power line characteristic monitoring method that allows automatic conductor circuit fault data logging of average nominal and maximum magnitudes of conductor current, voltage, temperature and strain. Additionally, an alarm is implemented to enunciate a faulted condition on the power line. Parametric data storage is provided for later retrieval by a remote exciter. The parametric data is retrieved from the exciter through the transmission of a specific frequency and code key that activates the exciter.
48 Citations
15 Claims
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1. A method for determining a nominal and maximum current flow in an electric power line conductor under faulted circuit conditions, conductor temperature, conductor strain, and conductor line potential, the method comprising:
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(a) in a field environment, applying a specific frequency activation signal and code key from an exciter positioned proximate to the a faulted circuit monitoring apparatus located on the power line conductor; (b) activating said faulted circuit monitoring apparatus by way of said specific frequency activation signal and code key; (c) at the exciter, detecting a data signal from the faulted circuit monitoring apparatus, the data produced by modulating a specific frequency faulted circuit monitor in response to measured current, temperature, line potential and strain parameters; (d) at the exciter, receiving the parametric data from the data signal; (e) associating the faulted circuit current magnitude, temperature, strain and potential with the conductor phase information for the faulted circuit monitor apparatus; (f) repeating steps (a), (b), (c), (d) and (e) for all power line phase conductors on an electric power line; (g) and storing the parametric data and phase conductor information in the memory of the exciter for downloading to a host pc. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification