JPS547143A - Protective device for electric instruments - Google Patents
Protective device for electric instrumentsInfo
- Publication number
- JPS547143A JPS547143A JP7105977A JP7105977A JPS547143A JP S547143 A JPS547143 A JP S547143A JP 7105977 A JP7105977 A JP 7105977A JP 7105977 A JP7105977 A JP 7105977A JP S547143 A JPS547143 A JP S547143A
- Authority
- JP
- Japan
- Prior art keywords
- protective device
- electric instruments
- main circuit
- fusible
- instruments
- 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.)
- Pending
Links
Landscapes
- Emergency Protection Circuit Devices (AREA)
- Protection Of Transformers (AREA)
Abstract
PURPOSE: To protect a main circuit from being put under the influence of the faults by connecting the conductors in the main circuit provided in the electric instruments of power station, through a fusible device to a protective device such as an arrester and by disconnecting the fusible device therefrom in the event the protective device may fall into the fault.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7105977A JPS547143A (en) | 1977-06-17 | 1977-06-17 | Protective device for electric instruments |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7105977A JPS547143A (en) | 1977-06-17 | 1977-06-17 | Protective device for electric instruments |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS547143A true JPS547143A (en) | 1979-01-19 |
Family
ID=13449561
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7105977A Pending JPS547143A (en) | 1977-06-17 | 1977-06-17 | Protective device for electric instruments |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS547143A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62154098U (en) * | 1986-03-17 | 1987-09-30 |
-
1977
- 1977-06-17 JP JP7105977A patent/JPS547143A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62154098U (en) * | 1986-03-17 | 1987-09-30 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS547143A (en) | Protective device for electric instruments | |
DE2862188D1 (en) | Selectively acting thermal circuit breaker, method for its release and its use for electrical protection | |
JPS51143850A (en) | Grounding current breaker | |
JPS52138648A (en) | Branch device for electrical equipment like switch | |
JPS5438541A (en) | Protective device for current transformer | |
JPS5425445A (en) | Apparatus protective device | |
JPS5226257A (en) | Electric power system supervisory equipment | |
JPS547122A (en) | Protective circuit for static power converter | |
JPS5321733A (en) | Protective device for inverter | |
SU838095A1 (en) | Apparatus for providing electric circuit spark suppression | |
JPS53117727A (en) | Power converter protector | |
JPS53107643A (en) | Protective relaying equipment | |
JPS5222739A (en) | Protection gap device | |
JPS51127341A (en) | Inverter protective device inverter | |
JPS5441440A (en) | Protection system for parallel two-ciruit distribution line | |
JPS5348407A (en) | Invasion protective circuit for abnormal voltage of wire communication equipment | |
JPS5279849A (en) | Process input/output system for essential safety protection | |
JPS5210541A (en) | Supervisory device of protective earthing for electric apparatus | |
JPS5292343A (en) | Checking device for protective relay | |
JPS51145841A (en) | Relay system for protecting transformers | |
JPS51144937A (en) | No phase protective device | |
JPS53117725A (en) | Fault point standarizing device | |
JPS52143468A (en) | Control circuit of switchgear device | |
IL50578A0 (en) | High speed breaker for protection from electrical faults | |
JPS548857A (en) | Reclosed circuit device of breaker |