ZA747916B - Method and apparatus for the detection of short circuits - Google Patents
Method and apparatus for the detection of short circuitsInfo
- Publication number
- ZA747916B ZA747916B ZA00747916A ZA747916A ZA747916B ZA 747916 B ZA747916 B ZA 747916B ZA 00747916 A ZA00747916 A ZA 00747916A ZA 747916 A ZA747916 A ZA 747916A ZA 747916 B ZA747916 B ZA 747916B
- Authority
- ZA
- South Africa
- Prior art keywords
- detection
- short circuits
- circuits
- short
- Prior art date
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
- H02H3/445—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 of DC quantities
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/04—Arrangements for preventing response to transient abnormal conditions, e.g. to lightning or to short duration over voltage or oscillations; Damping the influence of dc component by short circuits in ac networks
-
- 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
- H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
- H02H7/268—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured for dc systems
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Train Traffic Observation, Control, And Security (AREA)
- Electric Propulsion And Braking For Vehicles (AREA)
- Measurement Of Current Or Voltage (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1752473A CH566008A5 (xx) | 1973-12-14 | 1973-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA747916B true ZA747916B (en) | 1976-01-28 |
Family
ID=4426098
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA00747916A ZA747916B (en) | 1973-12-14 | 1974-12-12 | Method and apparatus for the detection of short circuits |
Country Status (15)
| Country | Link |
|---|---|
| US (1) | US3978374A (xx) |
| JP (1) | JPS5644663B2 (xx) |
| AT (1) | AT338910B (xx) |
| BE (1) | BE823262A (xx) |
| BR (1) | BR7410403D0 (xx) |
| CA (1) | CA999645A (xx) |
| CH (1) | CH566008A5 (xx) |
| ES (1) | ES432870A1 (xx) |
| FR (1) | FR2254899B1 (xx) |
| GB (1) | GB1495402A (xx) |
| IT (1) | IT1030904B (xx) |
| NL (1) | NL7416159A (xx) |
| SE (1) | SE394034B (xx) |
| SU (1) | SU638292A3 (xx) |
| ZA (1) | ZA747916B (xx) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4032766A (en) * | 1976-05-17 | 1977-06-28 | Tally Corporation | Wide range current flow fault detector |
| CH619569A5 (xx) * | 1976-12-02 | 1980-09-30 | Bbc Brown Boveri & Cie | |
| US4203142A (en) * | 1978-07-31 | 1980-05-13 | Lee Donald E | Ground fault system and method of detection |
| DE3519262A1 (de) * | 1985-05-24 | 1986-11-27 | Siemens AG, 1000 Berlin und 8000 München | Verfahren zum erzeugen eines ausloesesignals in abhaengigkeit von der groesse und der dauer eines ueberstromes |
| US4775833A (en) * | 1986-10-03 | 1988-10-04 | Coulter Electronics, Inc. | Lodged debris detector for a particle analyzer |
| FR2646538B1 (fr) * | 1989-04-26 | 1991-08-23 | Valeo Vision | Dispositif d'eclairage de vehicule automobile comportant des moyens de protection contre les courts-circuits |
| US5126659A (en) * | 1990-07-13 | 1992-06-30 | Motorola, Inc. | Enablement of a test mode in an electronic module with limited pin-outs |
| CN102520300B (zh) * | 2011-11-21 | 2015-12-09 | 航天科工深圳（集团）有限公司 | 一种线路短路故障检测方法及系统 |
| DE102017212730A1 (de) * | 2017-07-25 | 2019-01-31 | Siemens Aktiengesellschaft | Verfahren und Einrichtung zur Fehlerortung entlang einer Energieversorgungsstrecke bei Gleichstromsystemen |
| CN111352010B (zh) * | 2020-04-23 | 2022-06-14 | 烟台海珐电气科技有限公司 | 一种配电柜绝缘故障预警装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3419757A (en) * | 1966-04-08 | 1968-12-31 | Gen Electric | Overcurrent protective means |
| US3657605A (en) * | 1969-07-02 | 1972-04-18 | Ass Elect Ind | Overcurrent transient non-responsive trip device |
| DE2143971C3 (de) * | 1971-09-02 | 1981-12-03 | Hewlett-Packard GmbH, 7030 Böblingen | Spitzenwert-Detektorschaltung |
| DE2207315A1 (de) * | 1972-02-17 | 1973-08-23 | Bodenseewerk Perkin Elmer Co | Peakdetektor |
| US3796918A (en) * | 1973-03-26 | 1974-03-12 | Robertshaw Controls Co | Current overload protection system |
| US3836790A (en) * | 1973-08-22 | 1974-09-17 | Lorain Prod Corp | A-c voltage detector |
-
1973
- 1973-12-14 CH CH1752473A patent/CH566008A5/xx not_active IP Right Cessation
-
1974
- 1974-03-18 FR FR7409111A patent/FR2254899B1/fr not_active Expired
- 1974-12-06 US US05/530,147 patent/US3978374A/en not_active Expired - Lifetime
- 1974-12-10 SE SE7415476A patent/SE394034B/xx not_active IP Right Cessation
- 1974-12-11 SU SU742081886A patent/SU638292A3/ru active
- 1974-12-12 BE BE151426A patent/BE823262A/xx unknown
- 1974-12-12 AT AT992574A patent/AT338910B/de not_active IP Right Cessation
- 1974-12-12 GB GB53763/74A patent/GB1495402A/en not_active Expired
- 1974-12-12 ZA ZA00747916A patent/ZA747916B/xx unknown
- 1974-12-12 BR BR10403/74A patent/BR7410403D0/pt unknown
- 1974-12-12 IT IT30460/74A patent/IT1030904B/it active
- 1974-12-12 CA CA215,894A patent/CA999645A/en not_active Expired
- 1974-12-12 NL NL7416159A patent/NL7416159A/xx not_active Application Discontinuation
- 1974-12-12 JP JP14298874A patent/JPS5644663B2/ja not_active Expired
- 1974-12-12 ES ES432870A patent/ES432870A1/es not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| SU638292A3 (ru) | 1978-12-15 |
| BE823262A (fr) | 1975-04-01 |
| AT338910B (de) | 1977-09-26 |
| CH566008A5 (xx) | 1975-08-29 |
| DE2406196A1 (de) | 1975-06-19 |
| NL7416159A (nl) | 1975-06-17 |
| SE7415476L (xx) | 1975-06-16 |
| ES432870A1 (es) | 1976-11-01 |
| SE394034B (sv) | 1977-05-31 |
| FR2254899B1 (xx) | 1978-07-28 |
| JPS5644663B2 (xx) | 1981-10-21 |
| AU7637474A (en) | 1976-06-17 |
| DE2406196B2 (de) | 1976-03-11 |
| US3978374A (en) | 1976-08-31 |
| ATA992574A (de) | 1977-01-15 |
| FR2254899A1 (xx) | 1975-07-11 |
| JPS5091737A (xx) | 1975-07-22 |
| GB1495402A (en) | 1977-12-21 |
| CA999645A (en) | 1976-11-09 |
| IT1030904B (it) | 1979-04-10 |
| BR7410403D0 (pt) | 1975-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1026658A (en) | Method and apparatus for the detection of microfilariae | |
| IL39129A0 (en) | Method and apparatus for range finding | |
| HU173940B (hu) | Sposob i ustrojstvo dlja ochistki ploskoobraznykh izdelij | |
| ZA747917B (en) | Method and apparatus for the detection of short circuits | |
| IL44179A0 (en) | Method and device for testing for the presence of microorganisms | |
| ZA747916B (en) | Method and apparatus for the detection of short circuits | |
| GB1544926A (en) | Method and apparatus for extrusion | |
| CA935565A (en) | Method and apparatus for detection of copper | |
| ZA735456B (en) | Scrubbing apparatus and method | |
| IL49430A (en) | Method and apparatus for the separation of isotpes | |
| GB1444255A (en) | Apparatus for and methods of the electrical discharge analysis of metalarticles | |
| IL34602A0 (en) | Method and apparatus for separating fluid mixtures | |
| ZA703536B (en) | Method and apparatus for filtering | |
| IL43511A0 (en) | Method and apparatus for the separation of isotopes | |
| IL35506A (en) | Method and apparatus for processing electrical signals | |
| GB1415402A (en) | Electrophotographic method and apparatus | |
| ZA732594B (en) | Method and apparatus for the winning of slate | |
| AU495449B2 (en) | Method and apparatus forthe detection of short circuits | |
| ZA726475B (en) | Process and apparatus for isolating the same | |
| ZA742796B (en) | Freeze-branding process and apparatus | |
| GB1418140A (en) | Electrophotographic method and apparatus | |
| ZA743352B (en) | Refrigeration apparatus and method for making same | |
| GB1447262A (en) | Method of and apparatus for the determination of inter | |
| ZA73710B (en) | Method and apparatus for the reduction of fe-vehicles | |
| IL36636A0 (en) | Method and apparatus for the separation of fluid mixtures |