JPS5117516A - - Google Patents

Info

Publication number
JPS5117516A
JPS5117516A JP7642375A JP7642375A JPS5117516A JP S5117516 A JPS5117516 A JP S5117516A JP 7642375 A JP7642375 A JP 7642375A JP 7642375 A JP7642375 A JP 7642375A JP S5117516 A JPS5117516 A JP S5117516A
Authority
JP
Japan
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
JP7642375A
Inventor
Rotaaru Nyutsuseru
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 JPS5117516A publication Critical patent/JPS5117516A/ja
Pending legal-status Critical Current

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
JP7642375A 1974-06-24 1975-06-20 Pending JPS5117516A (ja)

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 (1)

Publication Number Publication Date
JPS5117516A true JPS5117516A (ja) 1976-02-12

Family

ID=5919055

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7642375A Pending JPS5117516A (ja) 1974-06-24 1975-06-20

Country Status (11)

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104925A (en) * 1979-02-02 1980-08-11 Onahama Sakai Kagaku Kk Manufacture of basic ferric sulfate
JPS62247809A (ja) * 1986-04-22 1987-10-28 Nittetsu Mining Co Ltd 溶液状の鉄系処理剤
CN108530936A (zh) * 2018-05-22 2018-09-14 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
KR20220069092A (ko) 2019-09-30 2022-05-26 닛데츠 고교 가부시키가이샤 고농도 철계 응집제와 그 제조 방법
KR20220086592A (ko) 2019-10-29 2022-06-23 닛데츠 고교 가부시키가이샤 고농도 철계 응집제와 그 제조 방법

Families Citing this family (17)

* 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
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
WO2004017083A1 (en) * 2002-08-14 2004-02-26 Koninklijke Philips Electronics N.V. Module, electronic device and evaluation tool
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
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
US10819261B1 (en) 2019-10-25 2020-10-27 Schweitzer Engineering Laboratories, Inc. Security improvements for electric power generator protection
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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55104925A (en) * 1979-02-02 1980-08-11 Onahama Sakai Kagaku Kk Manufacture of basic ferric sulfate
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
JPS62247809A (ja) * 1986-04-22 1987-10-28 Nittetsu Mining Co Ltd 溶液状の鉄系処理剤
CN108530936A (zh) * 2018-05-22 2018-09-14 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
KR20220069092A (ko) 2019-09-30 2022-05-26 닛데츠 고교 가부시키가이샤 고농도 철계 응집제와 그 제조 방법
KR20220086592A (ko) 2019-10-29 2022-06-23 닛데츠 고교 가부시키가이샤 고농도 철계 응집제와 그 제조 방법

Also Published As

Publication number Publication date
SE398692B (sv) 1978-01-09
SE7506946L (sv) 1975-12-29
NO137249B (no) 1977-10-17
FR2276595A1 (fr) 1976-01-23
DE2430798B2 (de) 1978-07-27
GB1509931A (en) 1978-05-04
DE2430798A1 (de) 1976-01-15
BE830527A (fr) 1975-10-16
DE2430798C3 (de) 1979-03-29
NO137249C (no) 1978-01-25
CH585476A5 (ja) 1977-02-28
US4000464A (en) 1976-12-28
CA1044322A (en) 1978-12-12
FR2276595B1 (ja) 1978-03-17
NO751393L (ja) 1975-12-30
ATA298175A (de) 1976-05-15
AT334458B (de) 1976-01-25

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