WO2008057809A3 - System and method for detecting distribution transformer overload - Google Patents

System and method for detecting distribution transformer overload Download PDF

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Publication number
WO2008057809A3
WO2008057809A3 PCT/US2007/082762 US2007082762W WO2008057809A3 WO 2008057809 A3 WO2008057809 A3 WO 2008057809A3 US 2007082762 W US2007082762 W US 2007082762W WO 2008057809 A3 WO2008057809 A3 WO 2008057809A3
Authority
WO
WIPO (PCT)
Prior art keywords
power
low voltage
transformers
output
notification
Prior art date
Application number
PCT/US2007/082762
Other languages
French (fr)
Other versions
WO2008057809A2 (en
Inventor
Brian J Deaver
William O Radtke
Original Assignee
Current Tech Llc
Brian J Deaver
William O Radtke
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from US11/555,740 external-priority patent/US7795877B2/en
Application filed by Current Tech Llc, Brian J Deaver, William O Radtke filed Critical Current Tech Llc
Publication of WO2008057809A2 publication Critical patent/WO2008057809A2/en
Publication of WO2008057809A3 publication Critical patent/WO2008057809A3/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/04—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for transformers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R21/00—Arrangements for measuring electric power or power factor
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H1/00—Details of emergency protective circuit arrangements
    • H02H1/0061—Details of emergency protective circuit arrangements concerning transmission of signals
    • H02H1/0076—Details of emergency protective circuit arrangements concerning transmission of signals by superposition on the watched current

Abstract

A system, device, and method of detecting an overload condition of a distribution transformer that supplies power to one or more customer premises via a low voltage subnet is provided. In one embodiment, the method comprises determining the power output of the transformer; storing in a memory a threshold power value for the transformer; determining whether the power output exceeds the threshold power value; and, if the output power exceeds the threshold power value, providing a notification. Providing the notification may include wirelessly transmitting the notification and/or transmitting the notification over a medium voltage power line. The low voltage subnet may comprise a low voltage feeder that supplies power to a plurality of low voltage supply lines that extend to the customer premises in which case determining the output power may comprise measuring a voltage of the low voltage feeder and measuring a current traversing the low voltage feeder. The method may also comprise storing in the memory a plurality of threshold power values associated with a plurality of transformers, such as different models of transformers; receiving data of the power output of a multitude of transformers; and determining whether the power output of each of the multitude of transformers exceeds the threshold value associated with the transformer, which steps may be performed at a central computer system such as a power line server.
PCT/US2007/082762 2006-11-02 2007-10-28 System and method for detecting distribution transformer overload WO2008057809A2 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11/555,740 2006-11-02
US11/555,740 US7795877B2 (en) 2006-11-02 2006-11-02 Power line communication and power distribution parameter measurement system and method
US11/756,858 US7701357B2 (en) 2006-11-02 2007-06-01 System and method for detecting distribution transformer overload
US11/756,858 2007-06-01

Publications (2)

Publication Number Publication Date
WO2008057809A2 WO2008057809A2 (en) 2008-05-15
WO2008057809A3 true WO2008057809A3 (en) 2008-07-10

Family

ID=39365203

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2007/082762 WO2008057809A2 (en) 2006-11-02 2007-10-28 System and method for detecting distribution transformer overload

Country Status (1)

Country Link
WO (1) WO2008057809A2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012107346B4 (en) * 2012-08-09 2014-05-28 Deutsche Telekom Ag Method and device for spatiotemporal control of the electrical energy consumption of a telecommunications network as a function of states of the power supply system
CN105684497B (en) 2013-10-25 2019-03-15 德国电信股份公司 For enhancing the method, user equipment, mobile communications network and the system that use with the related resource of transmission of network environment relevant information
EP3170083A4 (en) * 2014-07-17 2018-03-07 3M Innovative Properties Company Systems and methods for maximizing expected utility of signal injection test patterns in utility grids

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654806A (en) * 1984-03-30 1987-03-31 Westinghouse Electric Corp. Method and apparatus for monitoring transformers
US6064191A (en) * 1996-08-01 2000-05-16 Switched Reluctance Drives Limited Current transducer and current-monitoring method
US20020113599A1 (en) * 2001-02-20 2002-08-22 Gary Hoffman Apparatus and method for cooling power transformers
US6711512B2 (en) * 2001-08-07 2004-03-23 Korea Electric Power Data Network Co. Ltd. Pole transformer load monitoring system using wireless internet network
US20050083206A1 (en) * 2003-09-05 2005-04-21 Couch Philip R. Remote electrical power monitoring systems and methods
US20060036795A1 (en) * 2000-06-09 2006-02-16 Mark Leach Method and system for monitoring and transmitting utility status via universal communications interface

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4654806A (en) * 1984-03-30 1987-03-31 Westinghouse Electric Corp. Method and apparatus for monitoring transformers
US6064191A (en) * 1996-08-01 2000-05-16 Switched Reluctance Drives Limited Current transducer and current-monitoring method
US20060036795A1 (en) * 2000-06-09 2006-02-16 Mark Leach Method and system for monitoring and transmitting utility status via universal communications interface
US20020113599A1 (en) * 2001-02-20 2002-08-22 Gary Hoffman Apparatus and method for cooling power transformers
US6711512B2 (en) * 2001-08-07 2004-03-23 Korea Electric Power Data Network Co. Ltd. Pole transformer load monitoring system using wireless internet network
US20050083206A1 (en) * 2003-09-05 2005-04-21 Couch Philip R. Remote electrical power monitoring systems and methods

Also Published As

Publication number Publication date
WO2008057809A2 (en) 2008-05-15

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