JPS5249437A - Differentaial protective relay and its inspection method - Google Patents
Differentaial protective relay and its inspection methodInfo
- Publication number
- JPS5249437A JPS5249437A JP50125030A JP12503075A JPS5249437A JP S5249437 A JPS5249437 A JP S5249437A JP 50125030 A JP50125030 A JP 50125030A JP 12503075 A JP12503075 A JP 12503075A JP S5249437 A JPS5249437 A JP S5249437A
- Authority
- JP
- Japan
- Prior art keywords
- differentaial
- inspection method
- protective relay
- inspection
- coils
- 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)
Abstract
PURPOSE: To perform inspection easily and quickly by installing inspection coils on each of a plurality of input transformers for taking out operational/restraining electrical amount of differential relay, and applying inspection input after connecting properly with said coils.
COPYRIGHT: (C)1977,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50125030A JPS5249437A (en) | 1975-10-17 | 1975-10-17 | Differentaial protective relay and its inspection method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP50125030A JPS5249437A (en) | 1975-10-17 | 1975-10-17 | Differentaial protective relay and its inspection method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5249437A true JPS5249437A (en) | 1977-04-20 |
Family
ID=14900100
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50125030A Pending JPS5249437A (en) | 1975-10-17 | 1975-10-17 | Differentaial protective relay and its inspection method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5249437A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5013940A (en) * | 1973-06-09 | 1975-02-13 |
-
1975
- 1975-10-17 JP JP50125030A patent/JPS5249437A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5013940A (en) * | 1973-06-09 | 1975-02-13 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS5263036A (en) | Full addition and subtraction circuit | |
JPS51117078A (en) | Magnetic field measuring method | |
JPS5249437A (en) | Differentaial protective relay and its inspection method | |
JPS5230170A (en) | Method of photoetching | |
JPS5216039A (en) | Combustion apparatus | |
JPS5228643A (en) | Digital protective relay | |
JPS51122723A (en) | Cylindrical winding for static inductor | |
JPS5222290A (en) | Method for transfer of drums | |
JPS5243268A (en) | Method and apparatus for separately taking out cases one by one from e gg containing cases laminated | |
JPS5253244A (en) | Inspection device protective relay | |
JPS51114033A (en) | Co-ordinate-based position detector | |
JPS51145841A (en) | Relay system for protecting transformers | |
JPS5228641A (en) | Digital protective relay | |
JPS52146674A (en) | Iron loss measuring apparatus | |
JPS5213044A (en) | Operation method of a hydraulic turbine | |
JPS53131256A (en) | Winding apparatus of metal sheet | |
JPS51111027A (en) | N+1 stand-by test method | |
JPS5227280A (en) | Method to form pinholes | |
JPS51116933A (en) | Transformer | |
JPS5237285A (en) | Method and apparatus for shearing strip materials | |
JPS5219294A (en) | Bushing device | |
JPS5315547A (en) | Inspection method for digital protective relays | |
JPS51116954A (en) | Detecting method of earth electric path | |
JPS5237293A (en) | Method and apparatus for correcting taper | |
JPS521384A (en) | Program relay device |