US Patent No: 6,677,743
Number of patents in Portfolio can not be more than 2000
High voltage powerline sensor with a plurality of voltage sensing devices
Stats
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Jan 13, 2004
Issued date -
Mar 5, 1999
filing date -
09/264,231
serial no -
In Force
status
Importance
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Abstract
A powerline sensor including a housing physically and electrically connectable to a powerline; a number of voltage sensing devices spaced peripherally about the housing, each voltage sensing device having an outer plate, an inner plate, and a dielectric material between the inner and out plates, the inner plates electrically connectable to the powerline, the outer plates electrically isolated form the powerline; and circuitry for sensing the voltage potential between the inner and outer plates to determine the voltage on the powerline.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,611,207 Apparatus for monitoring voltage on a high voltage overhead transmission line | 22 | 1983 | |
| 4,808,917 Transmission line sensor apparatus operable with near zero current line conditions | 19 | 1985 | |
| 4,724,381 RF antenna for transmission line sensor | 67 | 1986 | |
| 4,714,893 Apparatus for measuring the potential of a transmission line conductor | 18 | 1986 | |
| 4,794,328 Tool for mounting a sensor module on a live power transmission line | 11 | 1986 | |
| 4,758,962 Electrical power line and substation monitoring apparatus and systems | 55 | 1986 | |
| 4,786,862 Watchdog circuit for transmission line sensor module | 16 | 1986 | |
| 4,808,916 Power supply magnetic shunt for transmission line sensor module | 10 | 1986 | |
| 4,777,381 Electrical power line and substation monitoring apparatus and systems | 23 | 1987 | |
| 4,794,327 Electrical parameter sensing module for mounting on and removal from an energized high voltage power conductor | 39 | 1987 | |
| 4,855,671 Electrical power line and substation monitoring apparatus | 85 | 1988 | |
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| 4,210,901 Signal repeater for a distribution network communication system | 30 | 1978 | |
| 4,578,639 Metering system for measuring parameters of high AC electric energy flowing in an electric conductor | 22 | 1984 | |
| 4,668,934 Receiver apparatus for three-phase power line carrier communications | 86 | 1984 | |
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| 5,550,476 Fault sensor device with radio transceiver | 20 | 1994 | |
| 5,656,931 Fault current sensor device with radio transceiver | 20 | 1995 | |
| 5,565,783 Fault sensor device with radio transceiver | 66 | 1995 | |
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| 4,629,979 Apparatus for sensing and measuring a current on power transmission line | 10 | 1983 | |
| 4,831,327 Self-powered electrical measuring system isolated from electrical perturbances | 32 | 1987 | |
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| 5,303,112 Fault detection method and apparatus | 33 | 1990 | |
| 5,220,495 Arrangement and method for accurately sensing voltage of a high-impedance source and supplying power to a variable burden | 8 | 1991 | |
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| 4,823,022 Apparatus and method for sensing power line conditions | 13 | 1988 | |
| 5,729,888 Method of making an integrated electrical system | 15 | 1995 | |
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| 4,384,289 Transponder unit for measuring temperature and current on live transmission lines | 81 | 1981 | |
| 5,426,360 Secondary electrical power line parameter monitoring apparatus and system | 105 | 1994 | |
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| 4,961,049 Magnetically-coupled apparatus for measuring electrical current | 13 | 1988 | |
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| 5,684,450 Electricity distribution and/or power transmission network and filter for telecommunication over power lines | 109 | 1994 | |
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| 5,210,519 Digital data transmission | 94 | 1991 | |
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| 4,210,744 Adducts containing epoxide groups, from hydantoin trisepoxides and binuclear hydantoins | 7 | 1978 | |
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| 5,065,124 DC-40 GHz module interface | 8 | 1990 | |
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| 4,348,638 Power measuring apparatus | 7 | 1980 | |
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| 5,397,982 Releasable sensor for conductor fault detection including a rigid trigger arm | 11 | 1992 | |
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| 4,420,752 Real-time parameter sensor-transmitter | 34 | 1981 | |
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| 4,791,361 Current sensor for universal application | 17 | 1987 | |
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| 5,892,430 Self-powered powerline sensor | 74 | 1996 | |
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| 4,204,194 Meter terminal unit for use in automatic remote meter reading and control system | 17 | 1978 | |
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| 4,535,447 Remote monitoring system transmitter | 18 | 1983 | |
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| 6,177,884 Integrated power line metering and communication method and apparatus | 50 | 1998 | |
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| 4,999,571 Current and/or voltage detector for a distribution system | 11 | 1989 | |
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| 5,477,091 High quality electrical power distribution system | 149 | 1992 | |
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| 4,268,818 Real-time parameter sensor-transmitter | 68 | 1978 | |
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| 4,862,088 Remote locating of a structure and remote measurement of conditions therein | 21 | 1985 | |
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| 5,758,962 Continuous kneading machine for doughs | 9 | 1996 | |
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| 5,856,776 Method and apparatus for signal coupling at medium voltage in a power line carrier communications system | 80 | 1996 | |
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| 4,794,329 Cable mounted capacitively-coupled circuit condition indicating device | 26 | 1986 | |
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| 5,051,733 High voltage indicator device | 13 | 1990 | |
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| 4,622,535 Receiving circuit for a data transmission system | 11 | 1983 | |
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| 4,383,243 Powerline carrier control installation | 49 | 1979 | |
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| 5,729,145 Method and apparatus for detecting arcing in AC power systems by monitoring high frequency noise | 109 | 1995 | |
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| 4,935,693 Line secured current and voltage sensing apparatus | 10 | 1987 | |
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| 4,847,780 Current measuring apparatus | 55 | 1987 | |
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| 4,759,973 Semi-foamed polyethylene molding tape | 4 | 1986 | |
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| 5,124,642 Power line post insulator with dual inductor current sensor | 22 | 1989 | |
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| 4,350,980 Electric meter consumption and demand communicator | 31 | 1980 | |
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| 5,017,859 Integral capacitive divider bus bar voltage measuring apparatus and combined current sensor | 16 | 1989 | |
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| 5,559,377 Transformer coupler for communication over various lines | 119 | 1994 | |
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| 4,709,339 Electrical power line parameter measurement apparatus and systems, including compact, line-mounted modules | 129 | 1986 | |
| 4,801,937 Line mounted apparatus for remote measurement of power system or environmental parameters beyond line-of-site distanc | 32 | 1986 | |
| 4,827,272 Overhead power line clamp and antenna | 23 | 1986 | |
| 4,799,005 Electrical power line parameter measurement apparatus and systems, including compact, line-mounted modules | 51 | 1987 | |
| 4,829,298 Electrical power line monitoring systems, including harmonic value measurements and relaying communications | 69 | 1987 | |
| 4,904,996 Line-mounted, movable, power line monitoring system | 66 | 1988 | |
| 5,015,944 Current indicating device | 15 | 1989 | |
| 5,006,846 Power transmission line monitoring system | 109 | 1990 | |
| 5,140,257 System for rating electric power transmission lines and equipment | 30 | 1991 | |
| 5,473,244 Apparatus for measuring voltages and currents using non-contacting sensors | 72 | 1994 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 13, 2015 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |