NO137249C - Anordning til } konstatere jordslutninger i rotorkretsen hos en synkronmaskin som magnetiseres via roterende likeretter uten bruk av sleperinger - Google Patents

Anordning til } konstatere jordslutninger i rotorkretsen hos en synkronmaskin som magnetiseres via roterende likeretter uten bruk av sleperinger

Info

Publication number
NO137249C
NO137249C NO751393A NO751393A NO137249C NO 137249 C NO137249 C NO 137249C NO 751393 A NO751393 A NO 751393A NO 751393 A NO751393 A NO 751393A NO 137249 C NO137249 C NO 137249C
Authority
NO
Norway
Prior art keywords
sluts
trailers
magnetized
rights
rotary
Prior art date
Application number
NO751393A
Other languages
English (en)
Other versions
NO751393L (no
NO137249B (no
Inventor
Lothar Nuessel
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 NO751393L publication Critical patent/NO751393L/no
Publication of NO137249B publication Critical patent/NO137249B/no
Publication of NO137249C publication Critical patent/NO137249C/no

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/34—Testing dynamo-electric machines
NO751393A 1974-06-24 1975-04-18 Anordning til } konstatere jordslutninger i rotorkretsen hos en synkronmaskin som magnetiseres via roterende likeretter uten bruk av sleperinger NO137249C (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2430798A DE2430798C3 (de) 1974-06-24 1974-06-24 Anordnung zur Erfassung von Erdschlüssen im Läuferkreis einer schleifringlos über umlaufende Gleichrichter erregten Synchronmaschine

Publications (3)

Publication Number Publication Date
NO751393L NO751393L (no) 1975-12-30
NO137249B NO137249B (no) 1977-10-17
NO137249C true NO137249C (no) 1978-01-25

Family

ID=5919055

Family Applications (1)

Application Number Title Priority Date Filing Date
NO751393A NO137249C (no) 1974-06-24 1975-04-18 Anordning til } konstatere jordslutninger i rotorkretsen hos en synkronmaskin som magnetiseres via roterende likeretter uten bruk av sleperinger

Country Status (11)

Country Link
US (1) US4000464A (no)
JP (1) JPS5117516A (no)
AT (1) AT334458B (no)
BE (1) BE830527A (no)
CA (1) CA1044322A (no)
CH (1) CH585476A5 (no)
DE (1) DE2430798C3 (no)
FR (1) FR2276595A1 (no)
GB (1) GB1509931A (no)
NO (1) NO137249C (no)
SE (1) SE398692B (no)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5425446A (en) * 1977-07-26 1979-02-26 Mitsubishi Electric Corp Blushless exciter protective device
JPS5820892B2 (ja) * 1979-02-02 1983-04-26 小名浜堺化学株式会社 塩基性硫酸第二鉄の製造法
JPS5826524A (ja) * 1981-08-07 1983-02-17 三菱電機株式会社 交流発電機の接地検出装置
JPS5826522A (ja) * 1981-08-07 1983-02-17 三菱電機株式会社 交流発電機の接地検出装置
JPS5826523A (ja) * 1981-08-07 1983-02-17 三菱電機株式会社 交流発電機の接地検出装置
JPS62247809A (ja) * 1986-04-22 1987-10-28 Nittetsu Mining Co Ltd 溶液状の鉄系処理剤
JP2005535973A (ja) * 2002-08-14 2005-11-24 コーニンクレッカ　フィリップス　エレクトロニクス　エヌ　ヴィ モジュール、電子装置および評価ツール
US7498818B2 (en) * 2006-08-25 2009-03-03 Schweitzer Engineering Laboratories, Inc. Apparatus and method for detecting a brush liftoff in a synchronous generator rotor circuit
US8405940B2 (en) * 2009-10-13 2013-03-26 Schweitzer Engineering Laboratories Inc Systems and methods for generator ground fault protection
US10288688B2 (en) 2014-07-24 2019-05-14 Schweitzer Engineering Laboratories, Inc. Systems and methods for monitoring and protecting an electric power generator
US9496707B2 (en) 2014-12-22 2016-11-15 Schweitzer Engineering Laboratories, Inc. Generator protection element
US10498279B2 (en) * 2015-11-23 2019-12-03 Abb Schweiz Ag Electromagnetic machine system having current injection for inductive excitation of windings
US10333291B2 (en) 2017-09-25 2019-06-25 Schweitzer Engineering Laboratories, Inc. Multiple generator ground fault detection
US10931097B2 (en) 2017-09-25 2021-02-23 Schweitzer Engineering Laboratories, Inc. Generator stator ground protection using third harmonic
CN108530936B (zh) * 2018-05-22 2019-08-23 山东午阳化工股份有限公司 对氨基乙酰苯胺清洁化生产工艺
US10797632B2 (en) 2018-08-21 2020-10-06 Schweitzer Engineering Laboratories, Inc. Sensitive directional element for generator protection
US11316455B2 (en) 2019-08-28 2022-04-26 Schweitzer Engineering Laboratories, Inc. Generator rotor turn-to-turn fault detection using fractional harmonics
JP2021053580A (ja) 2019-09-30 2021-04-08 日鉄鉱業株式会社 高濃度鉄系凝集剤とその製造方法
US10819261B1 (en) 2019-10-25 2020-10-27 Schweitzer Engineering Laboratories, Inc. Security improvements for electric power generator protection
JP7333262B2 (ja) 2019-10-29 2023-08-24 日鉄鉱業株式会社 高濃度鉄系凝集剤とその製造方法
US11631972B2 (en) 2020-12-16 2023-04-18 Schweitzer Engineering Laboratories, Inc. Accurate modeling of equipment overexcitation damage curves
US11946966B1 (en) 2023-02-20 2024-04-02 Schweitzer Engineering Laboratories, Inc. Selective stator ground fault protection using positive-sequence voltage reference

Also Published As

Publication number Publication date
CA1044322A (en) 1978-12-12
BE830527A (fr) 1975-10-16
FR2276595A1 (fr) 1976-01-23
JPS5117516A (no) 1976-02-12
FR2276595B1 (no) 1978-03-17
SE398692B (sv) 1978-01-09
DE2430798B2 (de) 1978-07-27
NO751393L (no) 1975-12-30
CH585476A5 (no) 1977-02-28
NO137249B (no) 1977-10-17
US4000464A (en) 1976-12-28
DE2430798A1 (de) 1976-01-15
DE2430798C3 (de) 1979-03-29
GB1509931A (en) 1978-05-04
ATA298175A (de) 1976-05-15
SE7506946L (sv) 1975-12-29
AT334458B (de) 1976-01-25

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