SE404109B - RELAY DEVICE FOR PROTECTING A PIPE SECTION OF A THREE-PHASE POWER POWER NETWORK - Google Patents

RELAY DEVICE FOR PROTECTING A PIPE SECTION OF A THREE-PHASE POWER POWER NETWORK

Info

Publication number
SE404109B
SE404109B SE7601298A SE7601298A SE404109B SE 404109 B SE404109 B SE 404109B SE 7601298 A SE7601298 A SE 7601298A SE 7601298 A SE7601298 A SE 7601298A SE 404109 B SE404109 B SE 404109B
Authority
SE
Sweden
Prior art keywords
protecting
relay device
pipe section
power
power network
Prior art date
Application number
SE7601298A
Other languages
Swedish (sv)
Other versions
SE7601298L (en
Inventor
J C Gambale
R E Ray
Original Assignee
Westinghouse Electric Corp
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 Westinghouse Electric Corp filed Critical Westinghouse Electric Corp
Publication of SE7601298L publication Critical patent/SE7601298L/en
Publication of SE404109B publication Critical patent/SE404109B/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
    • H02H7/262—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 involving transmissions of switching or blocking orders
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
    • H02H3/28—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus
    • H02H3/30—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at two spaced portions of a single system, e.g. at opposite ends of one line, at input and output of apparatus using pilot wires or other signalling channel

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Compounds Of Unknown Constitution (AREA)
  • Time-Division Multiplex Systems (AREA)
SE7601298A 1975-02-07 1976-02-06 RELAY DEVICE FOR PROTECTING A PIPE SECTION OF A THREE-PHASE POWER POWER NETWORK SE404109B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US54813275A 1975-02-07 1975-02-07

Publications (2)

Publication Number Publication Date
SE7601298L SE7601298L (en) 1976-08-09
SE404109B true SE404109B (en) 1978-09-18

Family

ID=24187555

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7601298A SE404109B (en) 1975-02-07 1976-02-06 RELAY DEVICE FOR PROTECTING A PIPE SECTION OF A THREE-PHASE POWER POWER NETWORK

Country Status (11)

Country Link
JP (1) JPS51103242A (en)
AR (1) AR212018A1 (en)
AU (1) AU503606B2 (en)
BR (1) BR7600683A (en)
DE (1) DE2604313A1 (en)
ES (1) ES444972A1 (en)
FR (1) FR2300449A1 (en)
GB (1) GB1501351A (en)
IN (1) IN145194B (en)
IT (1) IT1056690B (en)
SE (1) SE404109B (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2135486A (en) * 1983-02-18 1984-08-30 Png Prod Ltd Methods of remote-control using T.D.M. systems and apparatus utilising said methods
JPH02223228A (en) * 1988-12-06 1990-09-05 General Electric Co <Ge> Apparatus and method for communication
US7714735B2 (en) 2005-09-13 2010-05-11 Daniel Rockwell Monitoring electrical assets for fault and efficiency correction
US9647454B2 (en) 2011-08-31 2017-05-09 Aclara Technologies Llc Methods and apparatus for determining conditions of power lines
WO2013123055A1 (en) 2012-02-14 2013-08-22 Tollgrade Communications, Inc. Power line management system
EP4212885A3 (en) 2014-03-31 2023-11-01 Aclara Technologies LLC Optical voltage sensing for underground medium voltage wires
US10203355B2 (en) 2014-08-29 2019-02-12 Aclara Technologies Llc Power extraction for a medium voltage sensor using a capacitive voltage divider

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3390233A (en) * 1965-01-08 1968-06-25 Sangamo Electric Co Digital unambiguous control of circuit interrupter means
US3696210A (en) * 1970-08-06 1972-10-03 Motorola Inc Data transferring system utilizing a monitor channel and logic circuitry to assure secure data communication
US3893008A (en) * 1972-10-04 1975-07-01 Westinghouse Electric Corp Segregated phase comparison relaying apparatus
US3832601A (en) * 1973-08-09 1974-08-27 Westinghouse Electric Corp Phase comparison relaying apparatus with two-count by-pass circuit

Also Published As

Publication number Publication date
JPS51103242A (en) 1976-09-11
AU1053276A (en) 1977-07-28
FR2300449A1 (en) 1976-09-03
AR212018A1 (en) 1978-04-28
SE7601298L (en) 1976-08-09
AU503606B2 (en) 1979-09-13
BR7600683A (en) 1976-08-31
DE2604313A1 (en) 1976-08-19
GB1501351A (en) 1978-02-15
ES444972A1 (en) 1977-05-01
FR2300449B1 (en) 1982-04-02
IN145194B (en) 1978-09-09
IT1056690B (en) 1982-02-20

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