GB630999A - Improvements in switching and protective devices for electrical power systems - Google Patents
Improvements in switching and protective devices for electrical power systemsInfo
- Publication number
- GB630999A GB630999A GB813147A GB813147A GB630999A GB 630999 A GB630999 A GB 630999A GB 813147 A GB813147 A GB 813147A GB 813147 A GB813147 A GB 813147A GB 630999 A GB630999 A GB 630999A
- Authority
- GB
- United Kingdom
- Prior art keywords
- split
- conductor
- protective
- line
- switching
- 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
- 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
- H02H7/267—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 parallel lines and wires
Landscapes
- Regulation Of General Use Transformers (AREA)
Abstract
630,999. Protective cut-out arrangements. BRITISH THOMSON - HOUSTON CO., Ltd.. and WILCOX, T. W. March 25, 1947 No. 8131. [Class 38(v)] In a distribution system having split-conductor projection, the circuit interrupters each comprise a circuit-breaker 1 of the air-blast type or of the low oil-content, oilblast type, having a series air break switch 2 closing before, and opening after, the main circuit breaker contacts. The series switch 2 is constructed with a separate blade for connection to each line 5 of the split-conductor, the two blades of each phase being relatively lightly insulated from each other and having common insulation to earth. Hence when a split-conductor cable is being supplied from one end only, the primary windings of the protective transformer 6 at the other end are disconnected from each other, so that a fault in one line of the split-conductor can only be fed through one primary winding of the protective transformer at the supply end. The interrupter may be provided with isolators 3, 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB813147A GB630999A (en) | 1947-03-25 | 1947-03-25 | Improvements in switching and protective devices for electrical power systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB813147A GB630999A (en) | 1947-03-25 | 1947-03-25 | Improvements in switching and protective devices for electrical power systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB630999A true GB630999A (en) | 1949-10-25 |
Family
ID=9846349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB813147A Expired GB630999A (en) | 1947-03-25 | 1947-03-25 | Improvements in switching and protective devices for electrical power systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB630999A (en) |
-
1947
- 1947-03-25 GB GB813147A patent/GB630999A/en not_active Expired
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