US Patent No: 5,426,360

Number of patents in Portfolio can not be more than 2000

Secondary electrical power line parameter monitoring apparatus and system

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Abstract

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A system for unintrusively determining parameters such as current, voltage and power delivered through a service line to a customer for verifying accuracy of the customer's entrance meter. The system includes a sensor apparatus for monitoring voltage and current on the power line. A voltage clamp mechanism is disposed within a sensor housing such that an insulation piercing voltage sensor can be manually actuated to pierce the electrical insulation of the power line and contact the conductor. The sensor apparatus also includes a split-core current transformer fabricated to minimize the air gap between the split-core sections when the apparatus is closed about the power line. A pole unit is electrically connected to each sensor apparatus for monitoring the voltage and current, calculating the power consumed in kilowatt-hours and storing calculated kilowatt-hours in memory with an appropriate date/time stamp, for subsequent retrieval and comparison with the customer's entrance meter readings. Data retrieval is accomplished via a hand-held ground unit, such as a palm top computer, which communicates via infrared signals with the pole mounted unit.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
NIAGARA MOHAWK POWER CORPORATIONSYRACUSE, NY31

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Crimmins, James W Ridgefield, CT 12 489
Maraio, Robert A Camillus, NY 2 115
Sieron, Richard L Milford, CT 8 304

Cited Art Landscape

Patent Info (Count) # Cites Year
 
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TRANSDATA, INC. (1)
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Other [Check patent profile for assignment information] (2)
4,801,937 Line mounted apparatus for remote measurement of power system or environmental parameters beyond line-of-site distanc 41 1986
4,799,005 Electrical power line parameter measurement apparatus and systems, including compact, line-mounted modules 60 1987

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
CURRENT TECHNOLOGIES, LLC (33)
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Other [Check patent profile for assignment information] (4)
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8,890,538 Sensing system and method for manufacturing the same 0 2011
8,896,291 Power line takeoff clamp assembly 0 2013