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Body capacitance electric field powered device for high voltage lines

A technology of power lines and AC lines, applied in the field of devices coupled to high-voltage power lines, which can solve problems such as ineffectiveness, insufficient magnetic field to support sufficient power generation, etc.

Inactive Publication Date: 2006-10-04
POWER MEASUREMENT LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This technique does not work when the transmission line current is below a lower limit that results in an insufficient magnetic field to support adequate power generation

Method used

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  • Body capacitance electric field powered device for high voltage lines
  • Body capacitance electric field powered device for high voltage lines
  • Body capacitance electric field powered device for high voltage lines

Examples

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Embodiment Construction

[0030]The invention relates to a device connectable to a high voltage transmission line, energizing itself by generating a relatively low voltage from the current flowing between the high voltage line and the bulk capacitance of the components of the device. One type of device is a sensor. Parameters sensed may include current, line temperature, vibration (caused by arcing, corona, or other effects), strain / tension (caused by ice, wind loads, conductor cracks, power tower collapse, etc.), electric field (which indicates Steady-state and instantaneous voltage), lightning detection (instantaneous or optical), etc. Another type of device is an indicator. Indicators may include aircraft warning lights, information plates, and the like. Other devices include RF transmit / receive or repeater devices (such as used with cordless phones), radar devices, mesh network nodes, video / audio surveillance (surveillance), sound emitting devices for scaring animals, traversing power lines The ...

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Abstract

Devices that couple to high voltage transmission lines obtain power themselves using the body capacitance of an element of the devices. The devices generate a comparatively lower voltage from the current flowing between the high voltage line and the element of the device that generates the body capacitance. The devices can be used to operate sensors that monitor the transmission lines or parameters of the power distribution system, such as current, line temperature, vibration, and the like. The devices can also be used as indicators, such as aircraft warning lights, information signs, etc. In addition, the devices can operate as RF transmission / reception or repeater devices, radar devices, mesh networking nodes, video / audio surveillance, sound emitting devices for scaring animals, drones that traverse the power line, etc. Because the devices operate in response to line voltage rather than current, the devices are reliable even in low current conditions.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of 35 U.S.C. 119(e) to U.S. Provisional Application No. 60 / 490,318, "AC Line Sensing System Powered by Bulk Capacitive Electric Field," filed July 25, 2003, and Continuation of U.S. Patent Application No. 10 / 774,088, "Apparatus for High Voltage Lines Excited by Bulk Capacitive Electric Field," filed February 6, 2004, in part 35 U.S.C.120, both of which are incorporated by reference here. technical field [0003] The present invention relates to a device operable to be coupled to a high voltage power line. Background technique [0004] Generally, when a power company needs to transmit power over great distances, the power is transmitted at a relatively high voltage. These high voltages are usually much higher than those used by electricity consumers. When a power line uses a voltage greater than 1 kilovolt (kv) and less than 40kv, this power line is generally called a distribution ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/02
Inventor 科林·N.·冈恩西蒙·H.·莱特博迪布拉德福德·J.·福思马丁·A.·汉考克杰弗里·T.·海厄特
Owner POWER MEASUREMENT LTD
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