JPS5323525U - - Google Patents
Info
- Publication number
- JPS5323525U JPS5323525U JP8345977U JP8345977U JPS5323525U JP S5323525 U JPS5323525 U JP S5323525U JP 8345977 U JP8345977 U JP 8345977U JP 8345977 U JP8345977 U JP 8345977U JP S5323525 U JPS5323525 U JP S5323525U
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/26—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents
- H02H3/36—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to difference between voltages or between currents; responsive to phase angle between voltages or between currents involving comparison of the voltage or current values at corresponding points of different systems, e.g. of parallel feeder systems
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R21/00—Arrangements for measuring electric power or power factor
- G01R21/127—Arrangements for measuring electric power or power factor by using pulse modulation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/34—Testing dynamo-electric machines
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/42—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to product of voltage and current
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Measurement Of Current Or Voltage (AREA)
- Emergency Protection Circuit Devices (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
- Supply And Distribution Of Alternating Current (AREA)
- Control Of Multiple Motors (AREA)
- Control Of Electric Motors In General (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2662276A GB1561845A (en) | 1976-06-25 | 1976-06-25 | Energy monitoring systems for electrical devices |
GB26622 | 1977-06-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5323525U true JPS5323525U (xx) | 1978-02-28 |
JPS6037005Y2 JPS6037005Y2 (ja) | 1985-11-02 |
Family
ID=10246532
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP8345977U Expired JPS6037005Y2 (ja) | 1976-06-25 | 1977-06-24 | 電気装置のための監視装置 |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS6037005Y2 (xx) |
AU (1) | AU511012B2 (xx) |
DE (1) | DE2728355A1 (xx) |
FR (1) | FR2356151A1 (xx) |
GB (1) | GB1561845A (xx) |
NL (1) | NL7706847A (xx) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63117254U (xx) * | 1987-01-23 | 1988-07-28 |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4360879A (en) * | 1980-08-28 | 1982-11-23 | The Valeron Corporation | Power measuring device |
DE3810157A1 (de) * | 1988-03-25 | 1989-10-12 | Bosch Gmbh Robert | Ueberwachung von elektrischen geraeten |
DE3816439A1 (de) * | 1988-05-13 | 1989-11-16 | Reich Maschf Gmbh Karl | Anzeigeeinrichtung fuer elektrowerkzeuge |
DE4242177A1 (de) * | 1992-12-15 | 1994-06-16 | Teves Gmbh Alfred | Schaltungsanordnung zur Überwachung einer Vielzahl von Spulen |
DE59502186D1 (de) * | 1994-10-27 | 1998-06-18 | Siemens Ag | Schaltgerät mit überwachung des abbrandes wenigstens eines kontaktstückes |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB789557A (en) * | 1954-12-24 | 1958-01-22 | Francois Jacques Denis Dayonne | Apparatus for simultaneously reading a plurality of curves |
US3955138A (en) * | 1974-11-06 | 1976-05-04 | General Electric Company | Electronic energy consumption meter with input transformer having single resistance terminated secondary winding coupled to C-MOS switches driven by pulse width modulated control signals |
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1976
- 1976-06-25 GB GB2662276A patent/GB1561845A/en not_active Expired
-
1977
- 1977-06-09 AU AU25995/77A patent/AU511012B2/en not_active Expired
- 1977-06-21 NL NL7706847A patent/NL7706847A/xx not_active Application Discontinuation
- 1977-06-23 DE DE19772728355 patent/DE2728355A1/de active Granted
- 1977-06-24 FR FR7719474A patent/FR2356151A1/fr active Granted
- 1977-06-24 JP JP8345977U patent/JPS6037005Y2/ja not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63117254U (xx) * | 1987-01-23 | 1988-07-28 | ||
JPH0534206Y2 (xx) * | 1987-01-23 | 1993-08-30 |
Also Published As
Publication number | Publication date |
---|---|
FR2356151B1 (xx) | 1983-09-30 |
DE2728355A1 (de) | 1977-12-29 |
FR2356151A1 (fr) | 1978-01-20 |
AU511012B2 (en) | 1980-07-24 |
AU2599577A (en) | 1978-12-14 |
NL7706847A (nl) | 1977-12-28 |
DE2728355C2 (xx) | 1988-12-15 |
JPS6037005Y2 (ja) | 1985-11-02 |
GB1561845A (en) | 1980-03-05 |