SE7903585L - Anordning ansluten till ett vexelstromsnet for att avkenna spenning i detta och att ge ett utgangsverde som er proprotionellt med forhallandet mellan netets linjespenning och frekvens - Google Patents
Anordning ansluten till ett vexelstromsnet for att avkenna spenning i detta och att ge ett utgangsverde som er proprotionellt med forhallandet mellan netets linjespenning och frekvensInfo
- Publication number
- SE7903585L SE7903585L SE7903585A SE7903585A SE7903585L SE 7903585 L SE7903585 L SE 7903585L SE 7903585 A SE7903585 A SE 7903585A SE 7903585 A SE7903585 A SE 7903585A SE 7903585 L SE7903585 L SE 7903585L
- Authority
- SE
- Sweden
- Prior art keywords
- voltage
- line
- detect
- relationship
- frequency
- Prior art date
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/10—Measuring sum, difference or ratio
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/04—Measuring peak values or amplitude or envelope of ac or of pulses
-
- 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
- G01R31/343—Testing dynamo-electric machines in operation
-
- 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
- H02H3/46—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 frequency deviations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Protection Of Static Devices (AREA)
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7903585A SE416757B (sv) | 1979-04-24 | 1979-04-24 | Anordning anslutning till ett vexelstromsnet for att avkenna spenning i detta och att ge ett utgangsverde som er proportionellt med forhallandet mellan netets linjespenning och frekvens |
CH254780A CH650079A5 (de) | 1979-04-24 | 1980-04-01 | Anordnung, die an einem wechselstromnetz eine spannung abtastet und einen ausgangswert abgibt, der dem verhaeltnis zwischen der linienspannung und der frequenz des netzes proportional ist. |
DE19803014096 DE3014096A1 (de) | 1979-04-24 | 1980-04-12 | Anordnung zur messung des verhaeltnisses zwischen der amplitude und der frequenz der wechselspannung eines wechselstromnetzes |
FR8008873A FR2455285A1 (fr) | 1979-04-24 | 1980-04-21 | Dispositif raccorde a un reseau a courant alternatif, permettant de detecter une tension dans ce reseau et de fournir une valeur initiale proportionnelle au rapport entre la tension de ligne et la frequence du reseau |
CA000350515A CA1175487A (en) | 1979-04-24 | 1980-04-23 | Means for sensing the ratio between the line voltage and the frequency of an a.c. network |
GB8013451A GB2049959B (en) | 1979-04-24 | 1980-04-23 | Means for sensing the ratio between the line voltage and the frequency of an ac network |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SE7903585A SE416757B (sv) | 1979-04-24 | 1979-04-24 | Anordning anslutning till ett vexelstromsnet for att avkenna spenning i detta och att ge ett utgangsverde som er proportionellt med forhallandet mellan netets linjespenning och frekvens |
Publications (2)
Publication Number | Publication Date |
---|---|
SE7903585L true SE7903585L (sv) | 1980-10-25 |
SE416757B SE416757B (sv) | 1981-02-02 |
Family
ID=20337884
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SE7903585A SE416757B (sv) | 1979-04-24 | 1979-04-24 | Anordning anslutning till ett vexelstromsnet for att avkenna spenning i detta och att ge ett utgangsverde som er proportionellt med forhallandet mellan netets linjespenning och frekvens |
Country Status (6)
Country | Link |
---|---|
CA (1) | CA1175487A (sv) |
CH (1) | CH650079A5 (sv) |
DE (1) | DE3014096A1 (sv) |
FR (1) | FR2455285A1 (sv) |
GB (1) | GB2049959B (sv) |
SE (1) | SE416757B (sv) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3044020A1 (de) * | 1980-11-22 | 1982-06-03 | Hermann Dr. 3171 Rötgesbüttel Lühr | Magnetometer mit digitaler messwertdarstellung nach dem impulsintegrationsverfahren |
KR850000683A (ko) * | 1983-06-30 | 1985-02-28 | 카다야마 히도하지로 | 가변주파수 전력계통의 전압검출 장치 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3546534A (en) * | 1968-01-31 | 1970-12-08 | Gen Electric | Overexcitation relay |
US3717818A (en) * | 1972-01-10 | 1973-02-20 | J Herbst | Instantaneous voltage detector |
-
1979
- 1979-04-24 SE SE7903585A patent/SE416757B/sv not_active IP Right Cessation
-
1980
- 1980-04-01 CH CH254780A patent/CH650079A5/de not_active IP Right Cessation
- 1980-04-12 DE DE19803014096 patent/DE3014096A1/de not_active Withdrawn
- 1980-04-21 FR FR8008873A patent/FR2455285A1/fr active Granted
- 1980-04-23 GB GB8013451A patent/GB2049959B/en not_active Expired
- 1980-04-23 CA CA000350515A patent/CA1175487A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
GB2049959B (en) | 1983-01-12 |
CA1175487A (en) | 1984-10-02 |
GB2049959A (en) | 1980-12-31 |
FR2455285B1 (sv) | 1985-04-19 |
CH650079A5 (de) | 1985-06-28 |
SE416757B (sv) | 1981-02-02 |
FR2455285A1 (fr) | 1980-11-21 |
DE3014096A1 (de) | 1980-11-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |
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