CH612774A5 - - Google Patents
Info
- Publication number
- CH612774A5 CH612774A5 CH874976A CH874976A CH612774A5 CH 612774 A5 CH612774 A5 CH 612774A5 CH 874976 A CH874976 A CH 874976A CH 874976 A CH874976 A CH 874976A CH 612774 A5 CH612774 A5 CH 612774A5
- Authority
- CH
- Switzerland
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
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
- F01D21/00—Shutting-down of machines or engines, e.g. in emergency; Regulating, controlling, or safety means not otherwise provided for
- F01D21/20—Checking operation of shut-down devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
- F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
- F16P3/18—Control arrangements requiring the use of both hands
- F16P3/20—Control arrangements requiring the use of both hands for electric control systems
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Safety Devices In Control Systems (AREA)
- Alarm Systems (AREA)
- Control Of Turbines (AREA)
- Monitoring And Testing Of Nuclear Reactors (AREA)
- Emergency Protection Circuit Devices (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US05/600,835 US4001654A (en) | 1975-07-31 | 1975-07-31 | Testable protective system |
Publications (1)
Publication Number | Publication Date |
---|---|
CH612774A5 true CH612774A5 (ja) | 1979-08-15 |
Family
ID=24405228
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH874976A CH612774A5 (ja) | 1975-07-31 | 1976-07-08 |
Country Status (7)
Country | Link |
---|---|
US (1) | US4001654A (ja) |
JP (1) | JPS5221505A (ja) |
CA (1) | CA1095147A (ja) |
CH (1) | CH612774A5 (ja) |
DE (1) | DE2630234C2 (ja) |
FR (1) | FR2319945A1 (ja) |
GB (1) | GB1547277A (ja) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3710204A1 (de) * | 1987-03-27 | 1988-10-06 | Siemens Ag | Elektrisches schutzgeraet |
CH675642A5 (ja) * | 1988-01-08 | 1990-10-15 | Landis & Gyr Betriebs Ag | |
ES2054201T3 (es) * | 1989-12-21 | 1994-08-01 | Asea Brown Boveri | Accionamiento para una valvula de alimentacion. |
DE4330038A1 (de) * | 1993-09-06 | 1995-03-09 | Abb Management Ag | Hydraulische Sicherheitsschaltung |
US5742513A (en) * | 1996-05-15 | 1998-04-21 | Abb Power T&D Company Inc. | Methods and systems for automatic testing of a relay |
GB2326779B (en) * | 1997-06-27 | 2001-06-06 | Solartron Group Ltd | Fail-safe system |
DE102004058540A1 (de) * | 2004-12-04 | 2006-06-08 | Bosch Rexroth Ag | Verfahren und Vorrichtung zur Überwachung einer Spannung |
US7409965B2 (en) * | 2006-10-16 | 2008-08-12 | Elliott Company | Direct acting hydraulic trip block |
FR2992485B1 (fr) * | 2012-06-21 | 2014-09-12 | Sagem Defense Securite | Circuit electrique de coupure d'une alimentation electrique a relais et fusibles |
FR2992486B1 (fr) * | 2012-06-21 | 2015-07-17 | Sagem Defense Securite | Circuit electrique de coupure d'une alimentation electrique a transistors et fusibles a logique redondee |
CN106501713A (zh) * | 2016-11-24 | 2017-03-15 | 国网福建省电力有限公司 | 一种便携式多接点继电器校验仪及其校验方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1176288B (de) * | 1962-06-01 | 1964-08-20 | Siemens Ag | Reaktorsicherheitsschaltung nach dem 2-von-3-System |
GB1128573A (en) * | 1966-07-14 | 1968-09-25 | Stal Laval Turbin Ab | Hydraulic system for testing the operation of overspeed monitors |
US3748540A (en) * | 1971-09-02 | 1973-07-24 | Gen Electric | Testing and monitoring system for redundant trip devices |
US3928976A (en) * | 1974-06-06 | 1975-12-30 | Westinghouse Electric Corp | Electrohydraulic emergency trip system for a turbine power plant |
-
1975
- 1975-07-31 US US05/600,835 patent/US4001654A/en not_active Expired - Lifetime
-
1976
- 1976-07-06 DE DE2630234A patent/DE2630234C2/de not_active Expired
- 1976-07-08 CH CH874976A patent/CH612774A5/xx not_active IP Right Cessation
- 1976-07-21 GB GB3033576A patent/GB1547277A/en not_active Expired
- 1976-07-23 FR FR7622481A patent/FR2319945A1/fr active Granted
- 1976-07-30 JP JP9039576A patent/JPS5221505A/ja active Granted
- 1976-07-30 CA CA258,136A patent/CA1095147A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5221505A (en) | 1977-02-18 |
GB1547277A (en) | 1979-06-06 |
DE2630234A1 (de) | 1977-02-17 |
FR2319945A1 (fr) | 1977-02-25 |
JPS5638762B2 (ja) | 1981-09-09 |
FR2319945B1 (ja) | 1981-09-25 |
CA1095147A (en) | 1981-02-03 |
DE2630234C2 (de) | 1981-11-12 |
US4001654A (en) | 1977-01-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |