SE441138B - Digitalt impedansrele - Google Patents

Digitalt impedansrele

Info

Publication number: SE441138B
Authority: SE; Sweden
Prior art keywords: voltage; pulse train; circuit; impedance; digital
Prior art date: 1984-02-01

Application number

SE8400499A

Other languages

English (en)

Swedish (sv)

Other versions

SE8400499L (sv

SE8400499D0 (sv

Inventor

N Brandt

Original Assignee

Asea Ab

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.)

1984-02-01

Filing date

1984-02-01

Publication date

1985-09-09

1984-02-01 Application filed by Asea Ab filed Critical Asea Ab

1984-02-01 Priority to SE8400499A priority Critical patent/SE441138B/sv

1984-02-01 Publication of SE8400499D0 publication Critical patent/SE8400499D0/xx

1985-01-24 Priority to DE8585100711T priority patent/DE3566756D1/de

1985-01-24 Priority to EP85100711A priority patent/EP0150814B1/fr

1985-01-30 Priority to US06/696,634 priority patent/US4636909A/en

1985-01-31 Priority to CA000473313A priority patent/CA1238107A/fr

1985-01-31 Priority to FI850417A priority patent/FI86782C/fi

1985-08-02 Publication of SE8400499L publication Critical patent/SE8400499L/

1985-09-09 Publication of SE441138B publication Critical patent/SE441138B/sv

Links

230000006870 function Effects 0.000 claims description 28
230000004224 protection Effects 0.000 claims description 21
238000005259 measurement Methods 0.000 claims description 6
230000015572 biosynthetic process Effects 0.000 claims description 5
238000001514 detection method Methods 0.000 claims description 4
238000001914 filtration Methods 0.000 claims description 3
238000006243 chemical reaction Methods 0.000 claims description 2
230000010354 integration Effects 0.000 claims 1
239000003990 capacitor Substances 0.000 description 3
238000000034 method Methods 0.000 description 3
230000009471 action Effects 0.000 description 2
230000008878 coupling Effects 0.000 description 2
238000010168 coupling process Methods 0.000 description 2
238000005859 coupling reaction Methods 0.000 description 2
230000001419 dependent effect Effects 0.000 description 2
238000012545 processing Methods 0.000 description 2
230000003068 static effect Effects 0.000 description 2
238000012935 Averaging Methods 0.000 description 1
230000000903 blocking effect Effects 0.000 description 1
238000010276 construction Methods 0.000 description 1
230000003111 delayed effect Effects 0.000 description 1
238000013461 design Methods 0.000 description 1
238000010586 diagram Methods 0.000 description 1
238000005516 engineering process Methods 0.000 description 1
230000010363 phase shift Effects 0.000 description 1
230000009993 protective function Effects 0.000 description 1
230000009467 reduction Effects 0.000 description 1
235000002020 sage Nutrition 0.000 description 1
238000005070 sampling Methods 0.000 description 1
230000006641 stabilisation Effects 0.000 description 1
238000011105 stabilization Methods 0.000 description 1
239000013589 supplement Substances 0.000 description 1
230000009469 supplementation Effects 0.000 description 1
230000001360 synchronised effect Effects 0.000 description 1
238000012360 testing method Methods 0.000 description 1
230000009466 transformation Effects 0.000 description 1

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
- H02H3/40—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 ratio of voltage and current

Landscapes

Measurement Of Current Or Voltage (AREA)
Emergency Protection Circuit Devices (AREA)
Measurement Of Resistance Or Impedance (AREA)

SE8400499A 1984-02-01 1984-02-01 Digitalt impedansrele SE441138B (sv)

Priority Applications (6)

Application Number	Priority Date	Filing Date	Title
SE8400499A SE441138B (sv)	1984-02-01	1984-02-01	Digitalt impedansrele
DE8585100711T DE3566756D1 (en)	1984-02-01	1985-01-24	Digital impedance relay
EP85100711A EP0150814B1 (fr)	1984-02-01	1985-01-24	Relais à impédance digital
US06/696,634 US4636909A (en)	1984-02-01	1985-01-30	Digital impedance relay
CA000473313A CA1238107A (fr)	1984-02-01	1985-01-31	Relais numerique sensible a l'impedance
FI850417A FI86782C (fi)	1984-02-01	1985-01-31	Digitalt impedansrelae

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
SE8400499A SE441138B (sv)	1984-02-01	1984-02-01	Digitalt impedansrele

Publications (3)

Publication Number	Publication Date
SE8400499D0 SE8400499D0 (sv)	1984-02-01
SE8400499L SE8400499L (sv)	1985-08-02
SE441138B true SE441138B (sv)	1985-09-09

Family

ID=20354549

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
SE8400499A SE441138B (sv)	1984-02-01	1984-02-01	Digitalt impedansrele

Country Status (6)

Country	Link
US (1)	US4636909A (fr)
EP (1)	EP0150814B1 (fr)
CA (1)	CA1238107A (fr)
DE (1)	DE3566756D1 (fr)
FI (1)	FI86782C (fr)
SE (1)	SE441138B (fr)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE452534B (sv) *	1986-04-08	1987-11-30	Asea Ab	Forfarande och anordning for reckviddsbegrensning och direktutlosning i samband med skydd av en kraftledning
SE452533B (sv) *	1986-04-08	1987-11-30	Asea Ab	Forfarande for riktningsdetektering av fel pa en kraftledning samt anordning for genomforande av det nemnda forfarandet
US4878143A (en) *	1987-10-30	1989-10-31	Cooper Power Systems, Inc.	Line current to time interpolator
SE459946B (sv) *	1987-12-29	1989-08-21	Asea Ab	Relaeskydd med selektivt fasval foer dubbelledningar
FI82797C (fi) *	1989-05-02	1991-04-10	Kone Oy	Foerfarande och anordning foer att skydda ett dataoeverfoeringsnaet.
US6603298B2 (en) *	2001-07-06	2003-08-05	Schweitzer Engineering Laboratories, Inc.	System for estimating the frequency of the power signal on a power transmission line
US8108165B2 (en) *	2008-04-04	2012-01-31	Schweitzer Engineering Laboratories, Inc.	Acquiring phasors outside the frequency tracking range for power protective relays
US8140283B2 (en) *	2008-12-24	2012-03-20	Schweitzer Engineering Laboratories, Inc.	Independent frequency measurement and tracking
US8346402B2 (en) *	2009-05-11	2013-01-01	Schweitzer Engineering Laboratories Inc	Islanding detection in an electrical power delivery system
US8373309B2 (en) *	2009-08-19	2013-02-12	Schweitzer Engineering Laboratories Inc	Systems and methods for asynchronous sampling data conversion
US8476874B2 (en)	2009-10-13	2013-07-02	Schweitzer Engineering Laboratories, Inc	Systems and methods for synchronized control of electrical power system voltage profiles
US9478378B2 (en)	2013-01-04	2016-10-25	Schweitzer Engineering Laboratories, Inc.	Preventing out-of-synchronism reclosing between power systems
US10312041B2 (en)	2015-11-20	2019-06-04	Schweitzer Engineering Laboratories, Inc.	Frequency measurement for electric power delivery system
US10644493B2 (en)	2017-05-01	2020-05-05	Schweitzer Engineering Laboratories, Inc.	Power system disturbance detection using power and frequency
US10312694B2 (en)	2017-06-23	2019-06-04	Schweitzer Engineering Laboratories, Inc.	Mode-based output synchronization using relays and a common time source
US11231449B2 (en)	2018-09-21	2022-01-25	Schweitzer Engineering Laboratories, Inc.	Frequency sensing systems and methods
US11381084B1 (en)	2021-10-05	2022-07-05	Schweitzer Engineering Laboratories, Inc.	Frequency measurement for load shedding and accurate magnitude calculation

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
SE330930B (fr) *	1969-05-08	1970-12-07	Asea Ab
SE373239B (fr) *	1973-05-21	1975-01-27	Asea Ab
CH610112A5 (fr) *	1976-08-26	1979-03-30	Arn Fritz
JPS53141442A (en) *	1977-05-16	1978-12-09	Tokyo Electric Power Co Inc:The	Distance relay
JPS6046615B2 (ja) *	1977-06-13	1985-10-17	東京電力株式会社	保護制御装置
JPS55127829A (en) *	1979-03-27	1980-10-03	Tokyo Shibaura Electric Co	Digital distance relay unit
GB2055518B (en) *	1979-08-01	1982-11-10	Tokyo Shibaura Electric Co	Detecting faults in power systems
US4371908A (en) *	1979-09-17	1983-02-01	Tokyo Shibaura Denki Kabushiki Kaisha	Digital protective relaying systems
US4321681A (en) *	1979-09-21	1982-03-23	Westinghouse Electric Corp.	Protective relay apparatus
JPS5854825A (ja) *	1981-09-29	1983-03-31	株式会社東芝	保護継電装置
US4464698A (en) *	1982-09-20	1984-08-07	Hitachi, Ltd.	Protective relay

1984
- 1984-02-01 SE SE8400499A patent/SE441138B/sv not_active IP Right Cessation
1985
- 1985-01-24 EP EP85100711A patent/EP0150814B1/fr not_active Expired
- 1985-01-24 DE DE8585100711T patent/DE3566756D1/de not_active Expired
- 1985-01-30 US US06/696,634 patent/US4636909A/en not_active Expired - Lifetime
- 1985-01-31 FI FI850417A patent/FI86782C/fi not_active IP Right Cessation
- 1985-01-31 CA CA000473313A patent/CA1238107A/fr not_active Expired

Also Published As

Publication number	Publication date
EP0150814B1 (fr)	1988-12-07
EP0150814A3 (en)	1985-08-28
CA1238107A (fr)	1988-06-14
SE8400499L (sv)	1985-08-02
FI850417L (fi)	1985-08-02
DE3566756D1 (en)	1989-01-12
EP0150814A2 (fr)	1985-08-07
US4636909A (en)	1987-01-13
SE8400499D0 (sv)	1984-02-01
FI850417A0 (fi)	1985-01-31
FI86782C (fi)	1992-10-12
FI86782B (fi)	1992-06-30

Legal Events

Date

Code

Title

Description

1995-01-31

NUG

Patent has lapsed

Ref document number: 8400499-3

Effective date: 19930912

Format of ref document f/p: F

Publication	Publication Date	Title
SE441138B (sv)	1985-09-09	Digitalt impedansrele
US4731689A (en)	1988-03-15	Directional detection in connection with faults in a power supply network
JP3172166B2 (ja)	2001-06-04	瞬時トリップ機能を持つディジタル回路を使用した電子式遮断器
SE452534B (sv)	1987-11-30	Forfarande och anordning for reckviddsbegrensning och direktutlosning i samband med skydd av en kraftledning
SE459059B (sv)	1989-05-29	Skydd foer hoegresistiva jordfel
EP0026620B1 (fr)	1984-05-30	Procédé et appareil pour l'identification de défauts dans des systèmes électriques de transmission de puissance
KR102200554B1 (ko)	2021-01-08	계통 전압 위상 검출 장치
EP0059416A1 (fr)	1982-09-08	Dispositif pour détecter des fautes de terre pour utilisation avec un circuit à courant continu
SE511265C2 (sv)	1999-09-06	Förfarande och anordning för styrning av en sekundärspänning vid en transformatoranordning med lindningsomkopplare
SE452822B (sv)	1987-12-14	Forfarande for bestemning av atminstone en av plusfoljdstrommarna och/eller en av minusfoljdsstrommarna samt anordning for genomforande av det nemnda forfarandet
US5402071A (en)	1995-03-28	Ground fault monitoring device for an electrical power distribution system
US20040057175A1 (en)	2004-03-25	Electrical bus protection method & apparatus
SE436814B (sv)	1985-01-21	Forfarande och anordning for fel- och/eller felriktningsdetektering
JP3015575B2 (ja)	2000-03-06	電圧低下検出装置
SE442693B (sv)	1986-01-20	Statiskt momentant overstromsrele
JP3287121B2 (ja)	2002-05-27	電圧低下検出回路
JP2737357B2 (ja)	1998-04-08	三相電子的負荷装置
GB1535124A (en)	1978-12-06	Control apparatus for responding to a fault current in a power transmission line
JP2723286B2 (ja)	1998-03-09	地絡検出装置
JPS6124900B2 (fr)	1986-06-13
JP2630862B2 (ja)	1997-07-16	変化幅検出装置
JPH08196035A (ja)	1996-07-30	方向検出装置
JP2633637B2 (ja)	1997-07-23	対称分保護リレー
JPS5679223A (en)	1981-06-29	Detecting system for instantaneous torque of ac motor
JPS588224B2 (ja)	1983-02-15	ロウデンケンシユツソウチ