GB1268546A - Method and apparatus for the determination of the short-circuit current that would flow upon occurence of a short circuit in three-phase electrical supply networks - Google Patents
Method and apparatus for the determination of the short-circuit current that would flow upon occurence of a short circuit in three-phase electrical supply networksInfo
- Publication number
- GB1268546A GB1268546A GB2780169A GB2780169A GB1268546A GB 1268546 A GB1268546 A GB 1268546A GB 2780169 A GB2780169 A GB 2780169A GB 2780169 A GB2780169 A GB 2780169A GB 1268546 A GB1268546 A GB 1268546A
- Authority
- GB
- United Kingdom
- Prior art keywords
- phase
- measurements
- short circuit
- load
- switch
- Prior art date
- 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.)
- Expired
Links
- 238000005259 measurement Methods 0.000 abstract 6
- 230000007935 neutral effect Effects 0.000 abstract 3
- 238000000819 phase cycle Methods 0.000 abstract 3
- 238000011156 evaluation Methods 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/16—Measuring impedance of element or network through which a current is passing from another source, e.g. cable, power line
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R29/00—Arrangements for measuring or indicating electric quantities not covered by groups G01R19/00 - G01R27/00
- G01R29/16—Measuring asymmetry of polyphase networks
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR69050532 | 1968-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1268546A true GB1268546A (en) | 1972-03-29 |
Family
ID=9695689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2780169A Expired GB1268546A (en) | 1968-10-24 | 1969-06-02 | Method and apparatus for the determination of the short-circuit current that would flow upon occurence of a short circuit in three-phase electrical supply networks |
Country Status (7)
| Country | Link |
|---|---|
| BE (1) | BE731745A (enrdf_load_stackoverflow) |
| CH (1) | CH489806A (enrdf_load_stackoverflow) |
| DE (1) | DE1922025C3 (enrdf_load_stackoverflow) |
| FR (1) | FR1594736A (enrdf_load_stackoverflow) |
| GB (1) | GB1268546A (enrdf_load_stackoverflow) |
| LU (1) | LU58431A1 (enrdf_load_stackoverflow) |
| NL (1) | NL166792C (enrdf_load_stackoverflow) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH619543A5 (enrdf_load_stackoverflow) * | 1978-01-25 | 1980-09-30 | Electricite Neuchateloise Sa | |
| DE3228200C2 (de) * | 1982-07-28 | 1986-01-30 | Institut elektrodinamiki Akademii Nauk Ukrainskoj SSR, Kiev | Verfahren zum Messen symmetrischer Spannungskomponenten in einem Mehrphasennetz und Vorrichtungen zur Durchführung des Verfahrens |
| FR2557391B1 (fr) * | 1983-12-21 | 1987-10-23 | Denier Paul | Identificateur et equilibreur de phases basse tension |
-
1968
- 1968-10-24 FR FR1594736D patent/FR1594736A/fr not_active Expired
-
1969
- 1969-04-14 CH CH561769A patent/CH489806A/fr not_active IP Right Cessation
- 1969-04-15 LU LU58431D patent/LU58431A1/xx unknown
- 1969-04-18 BE BE731745D patent/BE731745A/xx not_active IP Right Cessation
- 1969-04-30 DE DE19691922025 patent/DE1922025C3/de not_active Expired
- 1969-06-02 GB GB2780169A patent/GB1268546A/en not_active Expired
- 1969-06-03 NL NL6908386A patent/NL166792C/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL6908386A (enrdf_load_stackoverflow) | 1970-04-28 |
| NL166792B (nl) | 1981-04-15 |
| FR1594736A (enrdf_load_stackoverflow) | 1970-06-08 |
| BE731745A (enrdf_load_stackoverflow) | 1969-10-01 |
| DE1922025C3 (de) | 1978-05-11 |
| DE1922025B2 (de) | 1977-09-22 |
| DE1922025A1 (de) | 1970-07-16 |
| NL166792C (nl) | 1981-09-15 |
| CH489806A (fr) | 1970-04-30 |
| LU58431A1 (enrdf_load_stackoverflow) | 1969-07-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1248476A (en) | Localising faults in a.c. lines | |
| GB1268546A (en) | Method and apparatus for the determination of the short-circuit current that would flow upon occurence of a short circuit in three-phase electrical supply networks | |
| US4322790A (en) | Calibration source for instruments to measure power and negative sequence current of dynamoelectric machines | |
| US3408564A (en) | Electrical apparatus including a pair of replica impedances for measuring distances along a loaded electrical line | |
| US5113140A (en) | Microprocessor-controlled high-voltage capacitance bridge | |
| US3293497A (en) | Ground fault detector | |
| US3562647A (en) | Power factor transducer having voltage and current responsive switching means biased by an intermittently generated voltage | |
| CA1276234C (en) | Electrical measuring instrument for high voltage power measurements | |
| JPS61155869A (ja) | 位相補償を施した絶縁抵抗測定方法 | |
| CA1085449A (en) | Filter excitation circuitry | |
| US3594637A (en) | Variable-phase power frequency generator-amplifier | |
| GB632652A (en) | Improvements in or relating to dynamic balancing machines | |
| GB1223648A (en) | Solution conductivity measuring apparatus | |
| SU834586A1 (ru) | Устройство дл измерени коэффициентафОРМы КРиВОй пЕРЕМЕННОгО НАпР жЕНи | |
| RU2035706C1 (ru) | Устройство для измерения превышения температуры обмоток электрической машины переменного тока под нагрузкой | |
| JPS598130B2 (ja) | 非接地直流回路の地絡監視用回路装置 | |
| SU888255A1 (ru) | Устройство дл определени поврежденного фидера при однофазном замыкании | |
| GB821227A (en) | Improvements in or relating to substitution bridge circuits | |
| SU913517A1 (ru) | Способ измерения настройки дугогасящего реактора в резонанс с сетью и устройство для его осуществления 1 | |
| SU143915A1 (ru) | Фазочувствительный измерительный прибор | |
| SU708257A1 (ru) | Устройство дл измерени сопротивлени изол ции и емкости фаз ответвлени трехфазной сети с изолированной нейтралью | |
| SU798880A1 (ru) | Четырехквадратное множительноеуСТРОйСТВО | |
| SU645431A1 (ru) | Устройство к балансировочному станку дл получени опорного напр жени | |
| SU101192A1 (ru) | Устройство дл измерени мощности в трехфазной цепи | |
| SU885944A1 (ru) | Устройство дл оценки погрешностей дифференциальных аппаратов |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE20 | Patent expired after termination of 20 years |