RO116988B1 - Selective trip-release and signalling method and device for switch-disconnectors - Google Patents
Selective trip-release and signalling method and device for switch-disconnectorsInfo
- Publication number
- RO116988B1 RO116988B1 RO95-01211A RO9501211A RO116988B1 RO 116988 B1 RO116988 B1 RO 116988B1 RO 9501211 A RO9501211 A RO 9501211A RO 116988 B1 RO116988 B1 RO 116988B1
- Authority
- RO
- Romania
- Prior art keywords
- disconnector
- disconnectors
- allow
- transformer substation
- moment
- Prior art date
Links
Landscapes
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention relates to a selective trip-free release and signalling method and device for switch-disconnectors of average voltage overhead systems which employ electric signals transmitted across the cables of said system, carrying information on open / closed status of each disconnector, both by the moment when they are emitted in relation to a reference moment, that is the moment when the line is disconnected, and by the polarity of the first alternation, the signals being transmitted between some trip-free release and signalling units (DAS) attached to the system disconnectors and the reception, remote control and testing unit (DRTT) of the transformer substation to allow the triggering only of the disconnector located in the close vicinity of the fault in case of line short-circuit on one hand, and, on the other hand, to allow the remote control of any disconnector from the transformer substation and also to allow the checking of the status of each system disconnector from the transformer substation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO95-01211A RO116988B1 (en) | 1995-06-26 | 1995-06-26 | Selective trip-release and signalling method and device for switch-disconnectors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RO95-01211A RO116988B1 (en) | 1995-06-26 | 1995-06-26 | Selective trip-release and signalling method and device for switch-disconnectors |
Publications (1)
Publication Number | Publication Date |
---|---|
RO116988B1 true RO116988B1 (en) | 2001-08-30 |
Family
ID=64360928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RO95-01211A RO116988B1 (en) | 1995-06-26 | 1995-06-26 | Selective trip-release and signalling method and device for switch-disconnectors |
Country Status (1)
Country | Link |
---|---|
RO (1) | RO116988B1 (en) |
-
1995
- 1995-06-26 RO RO95-01211A patent/RO116988B1/en unknown
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