JPS5726768A - Device for monitoring lc filter circuit - Google Patents

Device for monitoring lc filter circuit

Info

Publication number
JPS5726768A
JPS5726768A JP8068881A JP8068881A JPS5726768A JP S5726768 A JPS5726768 A JP S5726768A JP 8068881 A JP8068881 A JP 8068881A JP 8068881 A JP8068881 A JP 8068881A JP S5726768 A JPS5726768 A JP S5726768A
Authority
JP
Japan
Prior art keywords
monitoring
filter circuit
filter
circuit
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP8068881A
Other languages
English (en)
Inventor
Betsukaa Mihiaeru
Fuento Arufuonsu
Bofu Douuzan
Rentsu Kurausu
Shiyuufu Geruharuto
Warutoman Heruman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Publication of JPS5726768A publication Critical patent/JPS5726768A/ja
Pending legal-status Critical Current

Links

Classifications

    • 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
    • H02H3/44—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 the rate of change of electrical quantities
    • 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
    • H02H3/36—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 corresponding points of different systems, e.g. of parallel feeder systems
    • H02H3/365—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 corresponding points of different systems, e.g. of parallel feeder systems one of the systems simulating the other system
    • 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
    • H02H7/16—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 capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
  • Filters And Equalizers (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Tests Of Electric Status Of Batteries (AREA)
JP8068881A 1980-05-27 1981-05-27 Device for monitoring lc filter circuit Pending JPS5726768A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3020107A DE3020107A1 (de) 1980-05-27 1980-05-27 Ueberwachungseinrichtung fuer einen lc-filterkreis an einem wechselspannungsnetz

Publications (1)

Publication Number Publication Date
JPS5726768A true JPS5726768A (en) 1982-02-12

Family

ID=6103358

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8068881A Pending JPS5726768A (en) 1980-05-27 1981-05-27 Device for monitoring lc filter circuit

Country Status (5)

Country Link
US (1) US4409542A (ja)
EP (1) EP0040768B1 (ja)
JP (1) JPS5726768A (ja)
CA (1) CA1189146A (ja)
DE (2) DE3020107A1 (ja)

Families Citing this family (34)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0166813B1 (de) * 1984-06-29 1990-08-29 Siemens Aktiengesellschaft Überwachungseinrichtung
US5121066A (en) * 1990-12-03 1992-06-09 Chrysler Corporation Variable load dump simulator system
US6144292A (en) * 1992-10-22 2000-11-07 Norweb Plc Powerline communications network employing TDMA, FDMA and/or CDMA
GB9222205D0 (en) * 1992-10-22 1992-12-02 Norweb Plc Low voltage filter
US6282405B1 (en) 1992-10-22 2001-08-28 Norweb Plc Hybrid electricity and telecommunications distribution network
GB9417359D0 (en) * 1994-08-26 1994-10-19 Norweb Plc A power transmission network and filter therefor
DE19533559A1 (de) * 1995-09-11 1997-03-13 Siemens Matsushita Components Verfahren zur Begrenzung von Wirkleistung und Strom im Störungsfall bei der Prüfung von Leistungskondensatoren
NZ520621A (en) 2000-01-20 2005-05-27 Current Tech Llc Method of isolating data in a power line communication network by means of a low pass filter and/or a communication repeater or router
US7103240B2 (en) 2001-02-14 2006-09-05 Current Technologies, Llc Method and apparatus for providing inductive coupling and decoupling of high-frequency, high-bandwidth data signals directly on and off of a high voltage power line
US6965302B2 (en) 2000-04-14 2005-11-15 Current Technologies, Llc Power line communication system and method of using the same
US6998962B2 (en) 2000-04-14 2006-02-14 Current Technologies, Llc Power line communication apparatus and method of using the same
US20020110311A1 (en) * 2001-02-14 2002-08-15 Kline Paul A. Apparatus and method for providing a power line communication device for safe transmission of high-frequency, high-bandwidth signals over existing power distribution lines
US6980089B1 (en) 2000-08-09 2005-12-27 Current Technologies, Llc Non-intrusive coupling to shielded power cable
EP1371219A4 (en) 2001-02-14 2006-06-21 Current Tech Llc DATA COMMUNICATION VIA A POWER SUPPLY LINE
US7053756B2 (en) 2001-12-21 2006-05-30 Current Technologies, Llc Facilitating communication of data signals on electric power systems
US7102478B2 (en) 2002-06-21 2006-09-05 Current Technologies, Llc Power line coupling device and method of using the same
US6982611B2 (en) 2002-06-24 2006-01-03 Current Technologies, Llc Power line coupling device and method of using the same
US7132819B1 (en) 2002-11-12 2006-11-07 Current Technologies, Llc Floating power supply and method of using the same
US7064654B2 (en) 2002-12-10 2006-06-20 Current Technologies, Llc Power line communication system and method of operating the same
US6980090B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Device and method for coupling with electrical distribution network infrastructure to provide communications
US6965303B2 (en) 2002-12-10 2005-11-15 Current Technologies, Llc Power line communication system and method
US7075414B2 (en) 2003-05-13 2006-07-11 Current Technologies, Llc Device and method for communicating data signals through multiple power line conductors
US6980091B2 (en) 2002-12-10 2005-12-27 Current Technologies, Llc Power line communication system and method of operating the same
US7046124B2 (en) 2003-01-21 2006-05-16 Current Technologies, Llc Power line coupling device and method of using the same
US7308103B2 (en) 2003-05-08 2007-12-11 Current Technologies, Llc Power line communication device and method of using the same
US7460467B1 (en) 2003-07-23 2008-12-02 Current Technologies, Llc Voice-over-IP network test device and method
US7113134B1 (en) 2004-03-12 2006-09-26 Current Technologies, Llc Transformer antenna device and method of using the same
CN101814723B (zh) * 2010-04-20 2012-05-23 江苏省电力公司常州供电公司 电容器谐波及超温保护装置
WO2012010353A1 (en) 2010-07-23 2012-01-26 Abb Technology Ag Method and arrangement for capacitor bank protection
EP2568587A1 (de) * 2011-09-06 2013-03-13 Siemens Aktiengesellschaft Netzfilter für einen Umrichter und Umrichter mit einem solchen Netzfilter
AT515834B1 (de) 2014-06-04 2018-09-15 Magister Hoeveler & Co Ges M B H Haftmittel für Zahnprothesen und sein Verfahren zur Herstellung
CN104007321B (zh) * 2014-06-17 2016-06-08 华北电力大学（保定） 一种无功补偿电容器组的参数在线辨识方法
US9954351B2 (en) * 2015-10-26 2018-04-24 Leach International Corporation System for implementation of I2t trip characteristic
DE102017205003B4 (de) * 2017-03-24 2023-02-02 Siemens Aktiengesellschaft Leistungsschalter

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3200392A (en) * 1960-12-02 1965-08-10 Ite Circuit Breaker Ltd Counting circuit for counting cell railures in a rectifier system
FR1402917A (fr) * 1963-04-02 1965-06-18 Asea Ab Moyens de protection à relais pour un banc de condensateurs
FR1403148A (fr) * 1963-06-05 1965-06-18 English Company Ltd Dispositif de circuits électriques pour déceler les variations de la capacité d'un circuit capacitif
US3466538A (en) * 1967-05-01 1969-09-09 Bell Telephone Labor Inc Automatic synthesis of distributed-constant,resistance-capacitance filter having arbitrary response characteristic
US3538381A (en) * 1967-09-25 1970-11-03 Westinghouse Electric Corp Overload protection replica relay device
US3735250A (en) * 1970-07-08 1973-05-22 Shibaura Electric Comp Fault detecting apparatus for a capacitor type potential divider having an amplifier
JPS5138594B2 (ja) * 1972-06-28 1976-10-22
DE2264064A1 (de) * 1972-12-29 1974-07-04 Siemens Ag Distanzschutzeinrichtung
JPS5275472A (en) * 1975-12-20 1977-06-24 Sanyo Electric Co Ltd Residual capacity meter
SE406996B (sv) * 1977-03-11 1979-03-05 Asea Ab Skyddsanordning for kondensatorbatteri
US4243933A (en) * 1978-09-20 1981-01-06 Analogic Corporation Capacitance measurement apparatus
JPS55147367A (en) * 1979-05-04 1980-11-17 Koito Mfg Co Ltd Device for warning reduction of capacity of battery

Also Published As

Publication number Publication date
DE3169945D1 (en) 1985-05-23
US4409542A (en) 1983-10-11
DE3020107A1 (de) 1981-12-03
EP0040768A1 (de) 1981-12-02
CA1189146A (en) 1985-06-18
EP0040768B1 (de) 1985-04-17

Similar Documents

Publication Publication Date Title
JPS5726768A (en) Device for monitoring lc filter circuit
GB2086752B (en) Filter device
JPS56158112A (en) Self-purifying type filter device
GB2067910B (en) Backwashable filtering device
DE3169342D1 (en) Monitoring device for capacitor banks of a three-phase filter circuit
GB8306696D0 (en) Filter device
GB2119273B (en) Filter device
JPS57117251A (en) Device for monitoring thickness change
GB2134376B (en) Filter device for making tea
DE3165737D1 (en) Filtration device
JPS5725093A (en) Monitoring device
JPS56139112A (en) Device for filtering pulp
JPS5753131A (en) Filter unit
JPS5720673A (en) Device for monitoring condenser bank
JPS5753207A (en) Filtering dehydrating device
DE3379446D1 (en) Filter device
DE3366749D1 (en) Optical filter device
GB8322667D0 (en) Filtering device
DE3465523D1 (en) Optical filter device
GB8327229D0 (en) Filtering device
GB8319408D0 (en) Filtering device
JPS56110438A (en) Filter unit
JPS56152715A (en) Automatic filter device
GB2071453B (en) Crystal band-pass filter
JPS5759555A (en) Liquid filter apparatus