Power line sag monitor
First Claim
Patent Images
1. A sag monitor system for use on a span of a power conductor, the span being a section of the power conductor suspended between a pair of transmission towers, the sag monitor system for monitoring sag therein during power transmission, the sag monitor system comprising:
- an accelerometer positionable adjacent and parallel to the power conductor approximate one of its suspension points, the accelerometer outputting a voltage correlated to an angle of inclination of the conductor;
a transmitter electrically connected to the accelerometer for reading the voltage output by the accelerometer and transmitting signals indicative of the voltage output by the accelerometer;
a remote processor including a receiver for receiving signals indicative of the voltage output of the accelerometer, and calculating the sag in the power conductor based upon these signals, wherein multiple accelerometers are each positionable adjacent to the power conductor on different spans thereof whereby each accelerometer has an associated transmitter electrically connected thereto for reading the voltage output by that accelerometer and transmitting signals indicative of the voltage output by that accelerometer, and where the remote processor receives signals indicative of the voltage output by all of the multiple accelerometers whereby such signals each is identifiable to its respective accelerometer, and further comprising a transceiver for use with one or more accelerometers, the multiple accelerometers being aligned in series whereby voltage output signals from each accelerometer is communicated via other accelerometers until such output signals are received by the transceiver and transmitted as a long distance signal indicative of the voltage outputs to the remote processor, and the remote processor calculates the sag from the output signals received and the angle of inclination is used to calculate the sag based upon the equation that the sag equals about 0.24492 multiplied by the span which is multiplied by the tangent of the inclination angle when the towers are at approximately the same elevation and the land between the towers is relatively flat, and there is a housing and multiple accelerometers are affixed within the housing and all of the accelerometers are approximately within the same radial plane of the power conductor.
1 Assignment
0 Petitions
Accused Products
Abstract
An accelerometer properly positioned in conjunction with an energized electrical conductor produces an output that is dependent on conductor'"'"'s inclination angle in real time where the inclination angle is then used to calculate the sag of the conductor. A transmitter is used to communicate this information in real time to a central location such that up to optimal or maximum power transmission is feasible through the conductor while maintaining safe clearance from the ground. This allows for close monitoring of thermal expansion resulting from increased load as well as varying environmental conditions.
68 Citations
1 Claim
-
1. A sag monitor system for use on a span of a power conductor, the span being a section of the power conductor suspended between a pair of transmission towers, the sag monitor system for monitoring sag therein during power transmission, the sag monitor system comprising:
-
an accelerometer positionable adjacent and parallel to the power conductor approximate one of its suspension points, the accelerometer outputting a voltage correlated to an angle of inclination of the conductor;
a transmitter electrically connected to the accelerometer for reading the voltage output by the accelerometer and transmitting signals indicative of the voltage output by the accelerometer;
a remote processor including a receiver for receiving signals indicative of the voltage output of the accelerometer, and calculating the sag in the power conductor based upon these signals, wherein multiple accelerometers are each positionable adjacent to the power conductor on different spans thereof whereby each accelerometer has an associated transmitter electrically connected thereto for reading the voltage output by that accelerometer and transmitting signals indicative of the voltage output by that accelerometer, and where the remote processor receives signals indicative of the voltage output by all of the multiple accelerometers whereby such signals each is identifiable to its respective accelerometer, and further comprising a transceiver for use with one or more accelerometers, the multiple accelerometers being aligned in series whereby voltage output signals from each accelerometer is communicated via other accelerometers until such output signals are received by the transceiver and transmitted as a long distance signal indicative of the voltage outputs to the remote processor, and the remote processor calculates the sag from the output signals received and the angle of inclination is used to calculate the sag based upon the equation that the sag equals about 0.24492 multiplied by the span which is multiplied by the tangent of the inclination angle when the towers are at approximately the same elevation and the land between the towers is relatively flat, and there is a housing and multiple accelerometers are affixed within the housing and all of the accelerometers are approximately within the same radial plane of the power conductor.
-
Specification
-
- Resources
Litigation Campaign Assessment
Thank you for your request. You will receive a custom alert email when the Litigation Campaign Assessment is available.
×
-
Current AssigneeAmerican Electric Power Company Incorporated
-
Original AssigneeAmerican Electric Power Company Incorporated
-
InventorsHayes, Ray M., Nourai, Ali
-
Primary Examiner(s)CHAPMAN JR, JOHN E
-
Application NumberUS09/167,606Time in Patent Office902 DaysField of Search738/623.91, 734/93, 324/127, 340/870.16US Class Current73/862.391CPC Class CodesG01C 9/00 Measuring inclination, e.g....H02G 1/04 for mounting or stretchingH02G 7/02 Devices for adjusting or ma...
