WO2000048284B1 - A distributed monitoring and protection system for a distributed power network - Google Patents

A distributed monitoring and protection system for a distributed power network

Info

Publication number
WO2000048284B1
WO2000048284B1 PCT/US2000/000888 US0000888W WO0048284B1 WO 2000048284 B1 WO2000048284 B1 WO 2000048284B1 US 0000888 W US0000888 W US 0000888W WO 0048284 B1 WO0048284 B1 WO 0048284B1
Authority
WO
WIPO (PCT)
Prior art keywords
monitoring
electrical parameters
protection system
control unit
amended
Prior art date
Application number
PCT/US2000/000888
Other languages
French (fr)
Other versions
WO2000048284A1 (en
Inventor
Vincent Victor Horvath
James Allen Butt
Original Assignee
Bitronics Inc
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
Application filed by Bitronics Inc filed Critical Bitronics Inc
Priority to AU27262/00A priority Critical patent/AU2726200A/en
Priority to EP00905609A priority patent/EP1151516A1/en
Publication of WO2000048284A1 publication Critical patent/WO2000048284A1/en
Publication of WO2000048284B1 publication Critical patent/WO2000048284B1/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
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/261—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured involving signal transmission between at least two stations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00002—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by monitoring
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00016—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus
    • H02J13/00017—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment using a wired telecommunication network or a data transmission bus using optical fiber
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00006—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment
    • H02J13/00028—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by information or instructions transport means between the monitoring, controlling or managing units and monitored, controlled or operated power network element or electrical equipment involving the use of Internet protocols
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00034—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving an electric power substation
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
    • H02J13/00032—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for
    • H02J13/00036—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers
    • H02J13/0004—Systems characterised by the controlled or operated power network elements or equipment, the power network elements or equipment not otherwise provided for the elements or equipment being or involving switches, relays or circuit breakers involved in a protection system
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/20—Systems supporting electrical power generation, transmission or distribution using protection elements, arrangements or systems
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
    • Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
    • Y04S10/00—Systems supporting electrical power generation, transmission or distribution
    • Y04S10/30—State monitoring, e.g. fault, temperature monitoring, insulator monitoring, corona discharge

Abstract

A distributed monitoring and protection system for a distributed power network. The system includes a plurality of high-speed measuring units (MUs), wherein each MU is coupled to a power line to measure values of electrical parameters of the power line. Electrical parameters, such as current, voltage, power and frequency are measured by the MUs. The MUs communicate with a control unit (CU) over a high-speed communications network. The CU includes a processor executing algorithms for evaluating the measured parameters to determine the status of the power network and the MUs. The processor also executes fault detection and isolation by comparing the measured values against predetermined threshold values. When a fault is detected by the CU, protective action, such as tripping of a circuit breaker, may be initiated by the CU directly or by transmitting the tripping command over the high speed data network to a local MU. The local MU may then trip the circuit breaker. The availability at the CU of concurrent measurements from the plurality of MUs enables improved coordination and sequencing of protective actions.

Claims

28AMENDED CLAIMS[received by the International Bureau on 2 August 2000 (02 08 00). onginal claims 1-30 replaced by amended claims 1-32 (5 pages)]
1. (Amended) A distributed monitoring and protection system for a distributed power network comprising: a plurality of lines for distributing electric power, the lines including protective devices, and at least two of the lines connected to different current nodes, an individual monitoring unit for measuring electrical parameters coupled to each of at least two of the lines, at least two of the monitoring units measuring electrical parameters from different current nodes, at least one control unit communicating remotely over a high-speed data network with each monitoring unit, and the at least one control unit including a processor for analyzing the measured electrical parameters from each monitoring unit, including the measured electrical parameters from the different current nodes, and upon analyzing the measured electrical parameters activating at least one of the protective devices if a fault in the power network is determined.
2. (Amended) The monitoring and protection system of claim 1 wherein the measured electrical parameters include at least one of current, voltage, power, frequency, power factor, harmonic components of the current and harmonic components of the voltage in the at least two lines.
3. The monitoring and protection system of claim 1 wherein the processor analyzes the received measured electrical parameters and activates the at least one protective device in a duration that is less than a predetermined duration required to limit effect of the fault in the power network.
4. (Amended) The monitoring and protection system of claim 3 wherein the predetermined duration is a function of the measured electrical parameters received from a monitoring unit.
5. The monitoring and protection system of claim 4 wherein the predetermined duration is dynamically changed. 29
6. The monitoring and protection system of claim 1 wherein the measured electrical parameters are communicated to the control unit in one cycle duration or less of an AC cycle of the electric power. 7. (Amended) The monitoring and protection system of claim 1 wherein each monitoring unit is coupled to at least one power line by at least one current transformer (CT). 8. The monitoring and protection system of claim 1 wherein the control unit is coupled to at least one protective device and the at least one protective device includes at least one circuit breaker for opening a line when a fault in the power network is determined. 9. The monitoring and protection system of claim 8 wherein the coupling is by the data network. 10. (Amended) The monitoring and protection system of claim 1 wherein a monitoring unit includes a connection to the at least one protective device for activating the protective device if the fault in the power network is determined by the control unit and communicated to the monitoring unit. 11. (Amended) The monitoring and protection system of claim 1 wherein the data network is a high-speed communications network transferring data at a rate of at least one megabit per second. 12. The monitoring and protection system of claim 1 wherein the data network is a high-speed communications network using Ethernet hardware. 13. The monitoring and protection system of claim 1 wherein the data network is a high-speed communications network using one of Modbus, DNP, UCA2.0 and Modbus Plus protocols. 14. The monitoring and protection system of claim 1 wherein the control unit includes a calculation of at least one value for at least one measured electrical parameter, and when the at least one value exceeds a threshold value, the control unit activates the at least one of the protective devices. 30
1 15. The monitoring and protection system of claim 1 wherein the
2 control unit includes at least one Over Current (OC) setting and at least one Time Over
3 Current (TOC) setting and one of the measured electrical parameters includes current
4 varying in time, and
5 when a value calculated from the current exceeds one of the OC setting and
6 the TOC setting, the control unit activates the at least one of the protective devices.
1 16. The monitoring and protection system of claim 1 wherein the
2 measuring unit includes a clock for tagging a time of measurement of each of the
3 measured electrical parameters. i 17. The monitoring and protection system of claim 1 wherein the
2 control unit includes a clock for determining a time of arrival of each of the measured
3 electrical parameters. l
18. Cancelled l
19. Cancelled
1 20. (Amended) The monitoring and protection system of claim 1
2 wherein the control unit provides a sequence of activation for each protective device.
1 21. (Amended) In a distributed power network having a plurality of
2 power lines wherein at least two of the power lines are connected to different current
3 nodes and each power line includes a protective device, a method for activating a
4 protective device comprising the steps of: s (a) measuring electrical parameters in at least two of the power lines
6 connected to different current nodes;
7 (b) transmitting at high speed the measured electrical parameters to a
8 remotely located control unit;
9 (c) analyzing in the control unit the measured electrical parameters io from the at least two power lines connected to different current nodes for determining a a fault in the power network; and
12 (d) activating the protective device based on results of step (c). 31
22. (Amended) The method of claim 21 wherein step (b) includes transmitting the measured electrical parameters over a high speed data network at a data rate of at least one megabit per second.
23. (Amended) The method of claim 21 wherein step (a) includes measuring the electrical parameters by using a plurality of monitoring units, each monitoring unit measuring the electrical parameters of at least one power line; and step (d) includes transmitting an activation command to one of the monitoring units and the one monitoring unit sending the activation command to the protection device.
24. The method of claim 21 wherein step (a) includes measuring a current value and step (c) includes calculating values from the measurement and analyzing the values with respect to threshold values, the threshold values being one of predetermined values and calculated values from a TOC curve.
25. (Amended) The method of claim 21 further including: (e) generating a second activation command to a second protection device; and (f) determining a sequence for activating the protective device and the second protective device.
26. (Amended) The method of claim 21 wherein step (a) includes measuring the electrical parameters by using a plurality of monitoring units, each monitoring unit measuring the electrical parameters of at least one power line; and step (c) includes comparing the measured electrical parameters from one of the plurality of monitoring units with the measured electrical parameters from at least one other of the plurality of monitoring units, when the one monitoring unit and the at least one other monitoring unit are measuring electrical parameters from respective power lines connected at the different current nodes.
27. (Amended) The method of claim 21 wherein step (c) includes analyzing the measured electrical parameters from the at least two monitoring units, and 32
step (d) includes activating the protective device based on a combination of the measured parameters. l
28. Cancelled
1 29. The method of claim 26 further including determining health of the
2 one monitoring unit based on the comparing step in step (c).
30. Cancelled
1 31. (Newly Added) The system of claim 1 wherein each line in the
2 plurality of lines includes three-phase lines.
1 32. (Newly Added) The system of claim 1 wherein the control unit
2 continuously receives the measured electrical parameters from each monitoring unit and
3 the control unit is physically separated from each monitoring unit.
PCT/US2000/000888 1999-02-12 2000-01-13 A distributed monitoring and protection system for a distributed power network WO2000048284A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU27262/00A AU2726200A (en) 1999-02-12 2000-01-13 A distributed monitoring and protection system for a distributed power network
EP00905609A EP1151516A1 (en) 1999-02-12 2000-01-13 A distributed monitoring and protection system for a distributed power network

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US11994799P 1999-02-12 1999-02-12
US60/119,947 1999-02-12
US09/457,495 US6496342B1 (en) 1999-02-12 1999-12-09 Distributed monitoring and protection system for a distributed power network
US09/457,495 1999-12-09

Publications (2)

Publication Number Publication Date
WO2000048284A1 WO2000048284A1 (en) 2000-08-17
WO2000048284B1 true WO2000048284B1 (en) 2000-10-12

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Family Applications (1)

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PCT/US2000/000888 WO2000048284A1 (en) 1999-02-12 2000-01-13 A distributed monitoring and protection system for a distributed power network

Country Status (4)

Country Link
US (2) US6496342B1 (en)
EP (1) EP1151516A1 (en)
AU (1) AU2726200A (en)
WO (1) WO2000048284A1 (en)

Families Citing this family (180)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7188003B2 (en) * 1994-12-30 2007-03-06 Power Measurement Ltd. System and method for securing energy management systems
JP3184459B2 (en) * 1996-08-01 2001-07-09 株式会社日立製作所 Power receiving protection device
DE19822127A1 (en) * 1998-05-07 1999-11-11 Siemens Ag Method and circuit arrangement for current detection
US6496342B1 (en) * 1999-02-12 2002-12-17 Bitronics Inc. Distributed monitoring and protection system for a distributed power network
US6636977B1 (en) * 1999-03-10 2003-10-21 Shin Jiuh Corp. Control device for use in a power supplying apparatus including multiple processors adapted to perform separate functions associated with status monitoring and load balancing
US6998962B2 (en) * 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
US20040010350A1 (en) * 2000-05-31 2004-01-15 Per-Anders Lof Distributed power generation system protection scheme
DE10047927B4 (en) * 2000-09-27 2006-08-03 Siemens Ag Method for networking a control unit with one or more power units
AUPR187800A0 (en) * 2000-12-04 2001-01-04 Electrical & Instrumentation Services Australia Pty Ltd Circuit monitoring device
DE10062762A1 (en) * 2000-12-13 2002-08-22 Siemens Ag Arrangement and method for data transmission of digital transmission data
US7249265B2 (en) * 2001-02-23 2007-07-24 Power Measurement, Ltd. Multi-featured power meter with feature key
US6871150B2 (en) * 2001-02-23 2005-03-22 Power Measurement Ltd. Expandable intelligent electronic device
US6813571B2 (en) * 2001-02-23 2004-11-02 Power Measurement, Ltd. Apparatus and method for seamlessly upgrading the firmware of an intelligent electronic device
US6745138B2 (en) 2001-02-23 2004-06-01 Power Measurement, Ltd. Intelligent electronic device with assured data storage on powerdown
US7085824B2 (en) * 2001-02-23 2006-08-01 Power Measurement Ltd. Systems for in the field configuration of intelligent electronic devices
US6879059B2 (en) * 2001-07-05 2005-04-12 Sleva Associates, Inc. Interruptible power supply module
DE10133881A1 (en) * 2001-07-12 2003-01-30 Siemens Ag Protection arrangement and protection method for a current path
US6728601B2 (en) * 2001-07-19 2004-04-27 International Business Machines Corporation Multiple host power control system and method
GB0120748D0 (en) 2001-08-25 2001-10-17 Lucas Aerospace Power Equip Generator
US7154722B1 (en) * 2001-09-05 2006-12-26 Abb Technology Ag Loop control for distribution systems
JP3822475B2 (en) * 2001-09-14 2006-09-20 三菱電機株式会社 Power system management method and power system management system
PL199777B1 (en) * 2001-12-24 2008-10-31 B Spo & Lstrok Ka Z Ograniczon Method of identifying weak and/or strong branches of a power distribution system
CN100468907C (en) * 2001-12-31 2009-03-11 Abb技术股份公司 High speed transfer system
US6892145B2 (en) 2002-02-25 2005-05-10 General Electric Company Method and system for conditionally triggered system data capture
US7747356B2 (en) 2002-02-25 2010-06-29 General Electric Company Integrated protection, monitoring, and control system
US20030218549A1 (en) * 2002-04-26 2003-11-27 Oleg Logvinov Powerline communications system for providing multiple services to isolated power generating plants
US6836395B2 (en) * 2002-08-05 2004-12-28 Schweitzer Engineering Laboratories, Inc. Protective relay system having settings provided therein for all protective relay locations in a power system
US20040037311A1 (en) * 2002-08-07 2004-02-26 Phonex Broadband Corporation Digital narrow band power line communication system
US7110231B1 (en) * 2002-08-30 2006-09-19 Abb Inc. Adaptive protection system for a power-distribution network
US6839210B2 (en) * 2002-10-25 2005-01-04 Schweitzer Engineering Laboratories, Inc. Bus total overcurrent system for a protective relay
KR101047728B1 (en) * 2002-10-25 2011-07-08 에스 앤드 시이 일렉트릭 캄파니 Method for controlling electric power system in response to circuit abnormality and system
WO2004042885A1 (en) * 2002-11-04 2004-05-21 Raytheon Company Intelligent power system
US7747354B2 (en) * 2003-01-06 2010-06-29 General Electric Company Circuit protection system
US6847297B2 (en) * 2003-01-06 2005-01-25 General Electric Company Locator devices and methods for centrally controlled power distribution systems
EP1450459A1 (en) * 2003-02-20 2004-08-25 Abb Research Ltd. Fault tolerant busbarstation with circuit-breakers and method for controlling a such station
JP4025216B2 (en) * 2003-02-21 2007-12-19 株式会社日立製作所 Uninterruptible power system
US7355301B2 (en) * 2003-02-26 2008-04-08 Cannon Technologies, Inc. Load control receiver with line under voltage and line under frequency detection and load shedding
US7174261B2 (en) * 2003-03-19 2007-02-06 Power Measurement Ltd. Power line sensors and systems incorporating same
US7089089B2 (en) * 2003-03-31 2006-08-08 Power Measurement Ltd. Methods and apparatus for retrieving energy readings from an energy monitoring device
US7417558B2 (en) * 2003-05-12 2008-08-26 Power Measurement Ltd. Wireless communications system incorporating intelligent electronic devices
US8587452B2 (en) 2003-05-12 2013-11-19 Power Measurement Ltd. Time coordinated energy monitoring system utilizing communications links
US7242114B1 (en) 2003-07-08 2007-07-10 Cannon Technologies, Inc. Thermostat device with line under frequency detection and load shedding capability
EP1646880A4 (en) * 2003-07-18 2013-06-19 Power Measurement Ltd Methods and apparatus for monitoring power flow in a conductor
US20060241880A1 (en) * 2003-07-18 2006-10-26 Forth J B Methods and apparatus for monitoring power flow in a conductor
US7412338B2 (en) * 2004-03-18 2008-08-12 Power Measurement Ltd. Radio frequency device within an energy sensor system
DE10334694B3 (en) * 2003-07-25 2005-04-28 Siemens Ag Method for determining a capacity utilization parameter indicating a utilization of primary electrical components
US7702424B2 (en) 2003-08-20 2010-04-20 Cannon Technologies, Inc. Utility load control management communications protocol
WO2005019846A1 (en) * 2003-08-22 2005-03-03 Uber Iii Arthur E Power line property measurement devices and power line fault location methods,devices and systems
US7193338B2 (en) * 2003-09-05 2007-03-20 Ghali Gamal A Method for tapping a high voltage transmission line and substation using the same
US7492562B2 (en) 2003-09-10 2009-02-17 Siemens Energy & Automation, Inc. AFCI temperature compensated current sensor
JP2007510394A (en) * 2003-10-24 2007-04-19 スクエア・ディー・カンパニー Intelligent power management control system
JP4406346B2 (en) * 2004-09-30 2010-01-27 株式会社東芝 Server and system, method, and program for providing wide area measurement service for electric power system
US7808128B1 (en) * 2004-11-12 2010-10-05 Dgi Creations, Llc Remote monitoring of control decisions for network protectors
US7271996B2 (en) 2004-12-03 2007-09-18 Electro Industries/Gauge Tech Current inputs interface for an electrical device
US7408274B2 (en) * 2004-12-30 2008-08-05 Inpower Llc Control and operating condition monitoring of dual series switch contactors for electric motor or other electrical load
US20060212176A1 (en) * 2005-02-18 2006-09-21 Corum James F Use of electrical power multiplication for power smoothing in power distribution
US20060190511A1 (en) * 2005-02-18 2006-08-24 Corum James F Electrical power multiplication
WO2006091383A2 (en) * 2005-02-18 2006-08-31 Cpg Technologies, Llc Use of electrical power multiplication for power smoothing in power distribution
US9118216B2 (en) 2005-02-18 2015-08-25 Cpg Technologies, Llc Parametric power multiplication
GB2423424B (en) * 2005-02-22 2009-10-28 Areva T & D Uk Ltd A method and an apparatus for supervising the operation of current transformers
US7571028B2 (en) * 2005-04-19 2009-08-04 Genscape Intangible Holding, Inc. Method and system for AC power grid monitoring
US7627453B2 (en) * 2005-04-26 2009-12-01 Current Communications Services, Llc Power distribution network performance data presentation system and method
US7626497B2 (en) 2005-05-25 2009-12-01 Current Technologies, Llc Power line communication vegetation management system and method
US7528503B2 (en) * 2005-07-22 2009-05-05 Cannon Technologies, Inc. Load shedding control for cycled or variable load appliances
US7398168B2 (en) * 2005-09-08 2008-07-08 Genscape Intangible Holding, Inc. Method and system for monitoring power flow through an electric power transmission line
US7301739B2 (en) * 2005-10-12 2007-11-27 Chevron U.S.A. Inc. Ground-fault circuit-interrupter system for three-phase electrical power systems
US7397228B2 (en) * 2006-01-12 2008-07-08 International Business Machines Corporation Programmable on-chip sense line
US7468657B2 (en) * 2006-01-30 2008-12-23 Current Technologies, Llc System and method for detecting noise source in a power line communications system
US8959006B2 (en) * 2006-03-10 2015-02-17 Power Analytics Corporation Systems and methods for automatic real-time capacity assessment for use in real-time power analytics of an electrical power distribution system
US20170046458A1 (en) 2006-02-14 2017-02-16 Power Analytics Corporation Systems and methods for real-time dc microgrid power analytics for mission-critical power systems
US8036872B2 (en) * 2006-03-10 2011-10-11 Edsa Micro Corporation Systems and methods for performing automatic real-time harmonics analyses for use in real-time power analytics of an electrical power distribution system
US9557723B2 (en) 2006-07-19 2017-01-31 Power Analytics Corporation Real-time predictive systems for intelligent energy monitoring and management of electrical power networks
US20160246905A1 (en) 2006-02-14 2016-08-25 Power Analytics Corporation Method For Predicting Arc Flash Energy And PPE Category Within A Real-Time Monitoring System
US9092593B2 (en) 2007-09-25 2015-07-28 Power Analytics Corporation Systems and methods for intuitive modeling of complex networks in a digital environment
US7441173B2 (en) 2006-02-16 2008-10-21 Siemens Energy & Automation, Inc. Systems, devices, and methods for arc fault detection
US20070208520A1 (en) * 2006-03-01 2007-09-06 Siemens Energy & Automation, Inc. Systems, devices, and methods for arc fault management
WO2007103924A2 (en) * 2006-03-08 2007-09-13 Distribution Control Systems Intelligent fault detector system and method
US7813842B2 (en) * 2006-03-09 2010-10-12 Sony Corporation Systems and methods for use in providing local power line communication
US7253634B1 (en) * 2006-03-31 2007-08-07 General Electric Company Generator protection methods and systems self-tuning to a plurality of characteristics of a machine
US8126685B2 (en) * 2006-04-12 2012-02-28 Edsa Micro Corporation Automatic real-time optimization and intelligent control of electrical power distribution and transmission systems
US7755872B2 (en) * 2006-09-14 2010-07-13 Schweitzer Engineering Laboratories, Inc. System, method and device to preserve protection communication active during a bypass operation
US7795877B2 (en) * 2006-11-02 2010-09-14 Current Technologies, Llc Power line communication and power distribution parameter measurement system and method
US7489138B2 (en) 2006-11-30 2009-02-10 Honeywell International Inc. Differential arc fault detection
US7599161B2 (en) * 2006-12-29 2009-10-06 General Electric Company Relay device and corresponding method
US7969042B2 (en) 2007-02-02 2011-06-28 Cpg Technologies, Llc Application of power multiplication to electric power distribution
US7808124B2 (en) * 2007-02-02 2010-10-05 Cpg Technologies, Llc Electric power storage
DE102007010568A1 (en) * 2007-02-23 2008-08-28 Siemens Ag Energy distribution device, in particular low-voltage power distribution device
US9501803B2 (en) * 2007-04-12 2016-11-22 Siemens Industry, Inc. Devices, systems, and methods for monitoring energy systems
DE112007003587A5 (en) * 2007-05-03 2010-04-15 Siemens Aktiengesellschaft Protection arrangement for a power supply system with busbar, feed branch and branch
US7990668B2 (en) * 2007-05-25 2011-08-02 Cooper Technologies Company Device protection using temperature compensation
GB2449677A (en) * 2007-06-01 2008-12-03 Kevin Jones A system for identifying a risk of fire in a power network
EP2101387A1 (en) 2008-03-10 2009-09-16 ABB Research Ltd Controlling distribution of electrical power
EP2101394A1 (en) * 2008-03-10 2009-09-16 ABB Research Ltd. Distribution controller
US7728275B2 (en) * 2007-08-03 2010-06-01 Flir Systems, Inc. Wireless remote detector systems and methods
CN101779358B (en) * 2007-08-20 2014-12-31 西门子公司 Method and arrangement for monitoring a power transmission system
US9136711B2 (en) 2007-08-21 2015-09-15 Electro Industries/Gauge Tech System and method for synchronizing multiple generators with an electrical power distribution system
US7877169B2 (en) * 2007-08-21 2011-01-25 Electro Industries/ Gauge Tech System and method for synchronizing an auxiliary electrical generator to an electrical system
US8239422B2 (en) 2007-10-18 2012-08-07 At&T Intellectual Property I, Lp Methods and apparatus to provision network resource records
US20090289637A1 (en) * 2007-11-07 2009-11-26 Radtke William O System and Method for Determining the Impedance of a Medium Voltage Power Line
US7714592B2 (en) * 2007-11-07 2010-05-11 Current Technologies, Llc System and method for determining the impedance of a medium voltage power line
US7965195B2 (en) * 2008-01-20 2011-06-21 Current Technologies, Llc System, device and method for providing power outage and restoration notification
US8566046B2 (en) * 2008-01-21 2013-10-22 Current Technologies, Llc System, device and method for determining power line equipment degradation
US8035944B2 (en) * 2008-02-22 2011-10-11 Liebert Corporation Power supply system with adaptive blown fuse detection using negative sequence component
US8520352B2 (en) * 2008-02-25 2013-08-27 Xylem Ip Holdings Llc Multiple-channel active sensing and switching device
US8000910B2 (en) 2008-04-30 2011-08-16 Schneider Electric USA , Inc. Automated voltage analysis in an electrical system using contextual data
US8310093B1 (en) 2008-05-08 2012-11-13 Corum James F Multiply-connected power processing
US8121741B2 (en) * 2008-05-09 2012-02-21 International Business Machines Corporation Intelligent monitoring of an electrical utility grid
US20100007354A1 (en) * 2008-07-08 2010-01-14 Deaver Sr Brian J System and Method for Predicting a Fault in a Power Line
EP2321885A2 (en) * 2008-08-14 2011-05-18 Simplure, Llc. Systems and methods for conditioning and controlling power usage
CN102246374B (en) * 2008-12-10 2015-05-27 西门子公司 Method and safety device for monitoring a bus bar of an electrical energy supply grid
US8103467B2 (en) 2009-01-14 2012-01-24 Accenture Global Services Limited Determination of distribution transformer voltages based on metered loads
AU2013203562B2 (en) * 2009-01-14 2015-07-09 Accenture Global Services Limited Distribution system analysis using meter data
EP3410554B1 (en) * 2009-01-14 2019-12-11 Accenture Global Services Limited Distribution system analysis using meter data
US8103466B2 (en) 2009-01-14 2012-01-24 Accenture Global Services Limited Distribution system analysis using meter data
AU2014203625B2 (en) * 2009-01-14 2014-10-30 Accenture Global Services Limited Distribution system analysis using meter data
WO2010103348A1 (en) 2009-03-09 2010-09-16 Abb Technology Ltd System and method for real-time feeder reconfiguration for load balancing in distribution system automation
US9678114B2 (en) 2009-04-16 2017-06-13 Panoramic Power Ltd. Apparatus and methods thereof for error correction in split core current transformers
US10581243B2 (en) * 2009-06-26 2020-03-03 Koninklijke Philips N.V. Power distribution apparatus
US20110082597A1 (en) 2009-10-01 2011-04-07 Edsa Micro Corporation Microgrid model based automated real time simulation for market based electric power system optimization
US8336352B2 (en) * 2010-01-25 2012-12-25 Aclara Power-Line Systems, Inc. Transient detector and fault classifier for a power distribution system
WO2011156394A2 (en) 2010-06-07 2011-12-15 Abb Research Ltd. Systems and methods for classifying power line events
US8508896B2 (en) * 2010-11-09 2013-08-13 Eaton Corporation DC feeder protection system
CN102005732A (en) * 2010-12-10 2011-04-06 江苏省电力公司常州供电公司 Harmonic protection method for capacitor banks
CN102074936B (en) * 2010-12-15 2013-09-18 国网电力科学研究院 Method for coordinating operating characteristics of differential relay based on fault transient process
CN102082423B (en) * 2011-01-21 2013-07-31 华北电力大学 Relay protection method for phase to phase fault of circuit
CN102074941B (en) * 2011-01-28 2013-06-05 国家电网公司 Distributed parameter model circuit-based interphase reactance relay
US8976494B2 (en) * 2011-03-09 2015-03-10 Shakira Limited Device for detecting a fault in an AC supply
CN102243484A (en) * 2011-04-01 2011-11-16 成都振中电气有限公司 Intelligent protective relaying device
US8860353B1 (en) 2011-04-22 2014-10-14 Dgi Creations, Llc Protection for a network protector close motor
CN102957203B (en) * 2011-08-31 2014-11-26 珠海优特电力科技股份有限公司 Electrical equipment anti-misoperation method, device and system
US8791704B2 (en) 2011-10-11 2014-07-29 Schweitzer Engineering Laboratories Inc. Fault-type identification for electric power delivery systems
US20130158734A1 (en) * 2011-12-16 2013-06-20 General Electric Company Apparatus And Method To Protect Distribution Networks Against Overcurrents Caused By Faults In Residential Circuits
US8526156B2 (en) * 2011-12-21 2013-09-03 Schweitzer Engineering Laboratories Inc High speed signaling of power system conditions
US9528717B2 (en) 2012-02-28 2016-12-27 Cooper Technologies Company Efficiency heating, ventilating, and air-conditioning through extended run-time control
US8885306B2 (en) * 2012-04-17 2014-11-11 Hamilton Sundstrand Corporation Power management and distribution system having a fault detection and isolation assembly and method
US20130286546A1 (en) * 2012-04-28 2013-10-31 Schneider Electric Industries Sas Subsea Electrical Distribution System Having a Modular Subsea Circuit Breaker and Method for Assembling Same
CN102684176B (en) * 2012-05-11 2015-01-14 许继电气股份有限公司 Networking differential protection method for power distribution network based on maintenance of terminal equipment
US9647495B2 (en) 2012-06-28 2017-05-09 Landis+Gyr Technologies, Llc Power load control with dynamic capability
US9413156B2 (en) 2012-07-27 2016-08-09 San Diego Gas & Electric Company System for detecting a falling electric power conductor and related methods
US20140175877A1 (en) * 2012-08-13 2014-06-26 William Baker Building Power Management System
DE102012214927A1 (en) * 2012-08-22 2014-02-27 E.On Netz Gmbh Method of transporting electricity over a meshed power grid
US8964906B1 (en) * 2012-10-05 2015-02-24 L-3 Communications Corp. Digital signal processing apparatus having parameter memory device and process of using such
FR2998061A1 (en) * 2012-11-12 2014-05-16 Schneider Electric Ind Sas DEVICE AND METHOD FOR DETERMINING THE VOLTAGE AND POWER OF EACH PHASE IN A MEDIUM VOLTAGE NETWORK
CN105144526B (en) 2012-12-04 2018-03-30 Abb研究有限公司 The confession protective relay of module with improving performance
CN103904640A (en) * 2012-12-29 2014-07-02 鸿富锦精密工业（深圳）有限公司 Power supply control device for three-phase supply
WO2014110708A1 (en) * 2013-01-15 2014-07-24 Abb Technology Ltd. A coordinated control method for a distribution network with der and ev and control system thereof
US20140257580A1 (en) * 2013-03-08 2014-09-11 Chin Wen LIU Power line carrier control module
US9306391B2 (en) 2013-03-15 2016-04-05 General Electric Company Direct current transmission and distribution system and method of operating the same
EP2784892B1 (en) * 2013-03-29 2015-09-23 Alstom Technology Ltd Busbar protection with zone discrimination for faults between coupler circuit breaker and current transformer
EP2784893B1 (en) * 2013-03-29 2015-12-09 Alstom Technology Ltd Busbar protection against faults between circuit breaker and current transformer
US9166876B2 (en) 2013-04-25 2015-10-20 Powercomm Solutions, Llc Power communications monitor for power line carrier and audio tone communication systems
RU2653353C2 (en) * 2013-08-08 2018-05-08 ШНЕЙДЕР ЭЛЕКТРИК ЮЭсЭй, ИНК. Apparatus for transmission of diagnostic information about failure from circuit protective device
CN103560585B (en) * 2013-11-07 2015-06-10 南京国电南自轨道交通工程有限公司 Digitized line protection measurement and control system suitable for metro industry
US9692258B2 (en) * 2013-12-06 2017-06-27 Abb Research Ltd. Method and system for multi-IED event classification in an electrical grid
CN103926449B (en) * 2014-04-24 2016-11-02 江苏省电力公司常州供电公司 The self-adaptive monitoring method of power cable earth current
CN105319436B (en) * 2014-06-12 2017-07-18 国网山西省电力公司电力科学研究院 The wiring bus reactive power rate method of calibration of intelligent station 3/2 based on traditional transformer
CN105203984B (en) * 2014-06-12 2017-07-18 国网山西省电力公司电力科学研究院 The wiring bus reactive power rate tester of intelligent station 3/2 based on traditional transformer
US10317452B2 (en) * 2014-06-13 2019-06-11 Mitsubishi Electric Corporation Testing device, testing method, and program for power system protection control system
KR101552852B1 (en) * 2014-12-15 2015-09-14 와이피피 주식회사 Triple redundant digital protective relay and operating method thereof
US11171492B2 (en) * 2014-12-22 2021-11-09 Gip Ag Electrical power distributor and method for distributing electrical power
CN104749493B (en) * 2015-05-04 2017-05-10 江苏省电力公司苏州供电公司 Grid fault equipment analyzing and reasoning method based on rule tree
US10024885B2 (en) 2015-07-28 2018-07-17 Panoramic Power Ltd. Thermal management of self-powered power sensors
US9891252B2 (en) * 2015-07-28 2018-02-13 Panoramic Power Ltd. Thermal management of self-powered power sensors
CN105356428B (en) * 2015-11-23 2018-06-29 国家电网公司 A kind of Model in Time Domain suitable for wind power system identifies longitudinal protection method
US10141127B2 (en) 2015-12-16 2018-11-27 Abb Schweiz Ag High-speed communications coupling for use in a circuit breaker assembly
DE102016205196A1 (en) * 2016-03-30 2017-10-05 Siemens Aktiengesellschaft breakers
US10161986B2 (en) 2016-10-17 2018-12-25 Schweitzer Engineering Laboratories, Inc. Electric power system monitoring using distributed conductor-mounted devices
JP6332509B1 (en) * 2017-03-23 2018-05-30 日本電気株式会社 Power system
KR102087143B1 (en) * 2018-03-06 2020-03-10 엘에스산전 주식회사 Protecting and interlocking system for plurality of circuit breakers in low voltage grid
CN108736456B (en) * 2018-07-18 2019-10-08 杭州新融方科技有限公司 Power distribution network protective relaying device
US10859639B2 (en) 2018-10-02 2020-12-08 Schweitzer Engineering Laboratories, Inc. Fault-type identification in an electric power delivery system using composite signals
DE202019101744U1 (en) * 2019-03-27 2020-06-30 Wago Verwaltungsgesellschaft Mbh Electronic device and communication unit
US20220224101A1 (en) * 2019-05-28 2022-07-14 Tejas Kamlesh JHAVERI Device and method for detecting faulty electrical circuits with fault identification and alert system
EP4010954B1 (en) 2019-09-06 2024-02-14 S&C Electric Company Power distribution lateral protection system and method
CN110571771B (en) * 2019-10-17 2021-06-15 广西电网有限责任公司南宁供电局 Novel self-adaptive power distribution automation fault judgment isolation mode method
US11592498B2 (en) 2020-10-02 2023-02-28 Schweitzer Engineering Laboratories, Inc. Multi-phase fault identification in capacitor banks
US11646580B2 (en) * 2020-10-27 2023-05-09 Omnicron Electronics Gmbh Electrical power system with improved functional security
US11808824B2 (en) 2021-03-17 2023-11-07 Schweitzer Engineering Laboratories, Inc. Systems and methods to identify open phases of a capacitor bank
EP4067914A1 (en) * 2021-03-31 2022-10-05 DEPsys SA Method for identifying and localizing faults in a medium and low voltage electric power distribution grid using measurements from low voltage parts of the grid
EP4142087A1 (en) * 2021-08-31 2023-03-01 Fronius International GmbH Method and system for controlling power supply through a local electric power network

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4672501A (en) * 1984-06-29 1987-06-09 General Electric Company Circuit breaker and protective relay unit
GB8509422D0 (en) * 1985-04-12 1985-05-15 Gen Electric Co Plc Relays
US4972290A (en) * 1989-09-29 1990-11-20 Abb Power T & D Company Inc. Electric power system with remote monitoring and control of protective relays
US5495384A (en) * 1990-04-02 1996-02-27 Square D Company Apparatus and method for detecting a fault in a distributed line network
US5237511A (en) 1990-10-29 1993-08-17 Westronic, Inc. Distribution automation smart remote terminal unit
US5170310A (en) 1990-11-29 1992-12-08 Square D Company Fail-resistant solid state interruption system
US5341268A (en) * 1991-12-16 1994-08-23 Kabushiki Kaisha Toshiba Method of and system for disconnecting faulty distribution line section from power distribution line
DE4420513A1 (en) 1994-06-13 1995-12-14 Abb Management Ag Protecting bus=bars using constant k with value greater than k equal to 2 outputs
US5600527A (en) 1994-12-22 1997-02-04 Eaton Corporation Circuit interrupter providing protection and waveform capture for harmonic analysis
FR2729513B1 (en) 1995-01-17 1997-04-11 Schneider Electric Sa DEVICE FOR CONTROLLING AN ELECTRICAL SYSTEM
US5793750A (en) * 1995-10-20 1998-08-11 Schweitzer Engineering Laboratories, Inc. System of communicating output function status indications between two or more power system protective relays
US6008971A (en) * 1998-03-23 1999-12-28 Electric Boat Corporation Fault protection arrangement for electric power distribution systems
US6496342B1 (en) * 1999-02-12 2002-12-17 Bitronics Inc. Distributed monitoring and protection system for a distributed power network

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