NO127131B - - Google Patents
Download PDFInfo
- Publication number
- NO127131B NO127131B NO174569A NO174569A NO127131B NO 127131 B NO127131 B NO 127131B NO 174569 A NO174569 A NO 174569A NO 174569 A NO174569 A NO 174569A NO 127131 B NO127131 B NO 127131B
- Authority
- NO
- Norway
- Prior art keywords
- amplifier
- voltage
- conductors
- cable
- influence
- Prior art date
Links
- 239000004020 conductor Substances 0.000 claims description 16
- 239000004065 semiconductor Substances 0.000 claims description 5
- 238000004891 communication Methods 0.000 claims description 2
- 238000009434 installation Methods 0.000 claims description 2
- 230000006978 adaptation 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
- 238000004804 winding Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 230000002123 temporal effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/28—Reducing interference caused by currents induced in cable sheathing or armouring
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Amplifiers (AREA)
- Semiconductor Integrated Circuits (AREA)
- Emergency Protection Circuit Devices (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19681765281 DE1765281C3 (de) | 1968-04-26 | 1968-04-26 | Anordnung zum Schutz eines Fernmeldekabels gegen Fremdstrombeeinflussung durch Starkstromanlagen |
Publications (1)
Publication Number | Publication Date |
---|---|
NO127131B true NO127131B (enrdf_load_stackoverflow) | 1973-05-07 |
Family
ID=5698365
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO174569A NO127131B (enrdf_load_stackoverflow) | 1968-04-26 | 1969-04-25 |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT293482B (enrdf_load_stackoverflow) |
CH (1) | CH508313A (enrdf_load_stackoverflow) |
DE (1) | DE1765281C3 (enrdf_load_stackoverflow) |
NO (1) | NO127131B (enrdf_load_stackoverflow) |
SE (1) | SE343711B (enrdf_load_stackoverflow) |
-
1968
- 1968-04-26 DE DE19681765281 patent/DE1765281C3/de not_active Expired
-
1969
- 1969-04-25 NO NO174569A patent/NO127131B/no unknown
- 1969-04-25 CH CH637069A patent/CH508313A/de not_active IP Right Cessation
- 1969-04-25 SE SE591869A patent/SE343711B/xx unknown
- 1969-04-25 AT AT406069A patent/AT293482B/de active
Also Published As
Publication number | Publication date |
---|---|
DE1765281A1 (de) | 1971-07-22 |
CH508313A (de) | 1971-05-31 |
AT293482B (de) | 1971-10-11 |
DE1765281B2 (de) | 1980-06-19 |
SE343711B (enrdf_load_stackoverflow) | 1972-03-13 |
DE1765281C3 (de) | 1981-06-11 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3956671A (en) | Protection device for objects included in electrical power supply networks | |
US4296452A (en) | Multiphase fault protection circuitry with variable functional level detection | |
US4377834A (en) | Multiphase blocking circuitry for electrical power supply networks | |
US4254444A (en) | Multiphase undervoltage tripping circuitry for electrical power supply networks | |
SE8009142L (sv) | Spenningsstyrt transientskydd | |
ITMI950409A1 (it) | Unita' di derivazione per sistemi di telecomunicazioni subacquei | |
GB1451564A (en) | Electrical network protection device | |
US4099217A (en) | Protection circuits | |
SE469615B (sv) | Foerfarande och anordning foer att detektera ett oeverslag mellan ledare i kraftoeverfoeringslinjer med olika spaenningsnivaaer | |
GB1096413A (en) | Electrical protective relays | |
GB1107879A (en) | Improvements in or relating to earth leakage protection devices | |
NO127131B (enrdf_load_stackoverflow) | ||
US4449157A (en) | Surge protection for signal transmission systems | |
DE3172540D1 (en) | Protection circuit for a power distribution system | |
US2287164A (en) | Electric signaling system | |
US1779724A (en) | Electric protective arrangement for a. c. power circuits | |
NO126053B (enrdf_load_stackoverflow) | ||
US2356296A (en) | Protective system | |
US1230615A (en) | Protective device. | |
GB1255795A (en) | Earth leakage protection devices | |
US2585796A (en) | Protection of static current converter installations | |
SU1721690A1 (ru) | Устройство дл защиты от однофазного замыкани на землю в сети с изолированной нейтралью | |
SE443042B (sv) | Vinkeldata-repetersystem, innefattande en skyddskoppling mot overbelastning i varje overforingskanal | |
US2529169A (en) | Electric protective system | |
SU123598A1 (ru) | Устройство дл защиты линий электропередачи |