GB1137911A - Improvements in or relating to phase-sequence-responsive devices - Google Patents
Improvements in or relating to phase-sequence-responsive devicesInfo
- Publication number
- GB1137911A GB1137911A GB3995564A GB3995564A GB1137911A GB 1137911 A GB1137911 A GB 1137911A GB 3995564 A GB3995564 A GB 3995564A GB 3995564 A GB3995564 A GB 3995564A GB 1137911 A GB1137911 A GB 1137911A
- Authority
- GB
- United Kingdom
- Prior art keywords
- contactor
- neutral
- phase
- sequence
- load
- 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
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H11/00—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
- H02H11/004—Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result in case of incorrect phase sequence; with switching for obtaining correct phase sequence
Landscapes
- Control Of Eletrric Generators (AREA)
Abstract
1,137,911. Protective arrangements. MINISTER OF TECHNOLOGY. 31 Dec., 1965 [1 Oct. 1964], No. 39955/64. Heading H2K. [Also in Division G1] In a circuit for switching a load L, M, N to phase terminals of a supply A, B, D and neutral C in which the connections must be in the correct phase sequence, closure of switch 7 causes thyristor 1 to fire early in the positive half cycle applied to B to cause contactor 8 to close, or so late as to be ineffective. Where the neutral is not available, an artificial neutral may be supplied, In a modification, the supply and load are interchanged, switch 7 is omitted and the contactor is closed manually,re maining closed if the phase sequence is correct but releasing if incorrect, due to energization of the trip coil 8a which causes the contactor to open.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3995564A GB1137911A (en) | 1964-10-01 | 1964-10-01 | Improvements in or relating to phase-sequence-responsive devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3995564A GB1137911A (en) | 1964-10-01 | 1964-10-01 | Improvements in or relating to phase-sequence-responsive devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1137911A true GB1137911A (en) | 1968-12-27 |
Family
ID=10412411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3995564A Expired GB1137911A (en) | 1964-10-01 | 1964-10-01 | Improvements in or relating to phase-sequence-responsive devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1137911A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3211815A1 (en) * | 1982-03-31 | 1983-10-20 | Frako Kondensatoren- Und Apparatebau Gmbh, 7835 Teningen | Three-phase monitoring circuit |
-
1964
- 1964-10-01 GB GB3995564A patent/GB1137911A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3211815A1 (en) * | 1982-03-31 | 1983-10-20 | Frako Kondensatoren- Und Apparatebau Gmbh, 7835 Teningen | Three-phase monitoring circuit |
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