DE2728355C2 - - Google Patents

Info

Publication number
DE2728355C2
DE2728355C2 DE19772728355 DE2728355A DE2728355C2 DE 2728355 C2 DE2728355 C2 DE 2728355C2 DE 19772728355 DE19772728355 DE 19772728355 DE 2728355 A DE2728355 A DE 2728355A DE 2728355 C2 DE2728355 C2 DE 2728355C2
Authority
DE
Germany
Prior art keywords
output
voltage
current
monitoring
pulse
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
Application number
DE19772728355
Other languages
German (de)
English (en)
Other versions
DE2728355A1 (de
Inventor
Philip John Liverpool Gb Stokes
John Llewellyn Chester Gb Wiliams
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
British Nuclear Fuels Ltd
Original Assignee
British Nuclear Fuels Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by British Nuclear Fuels Ltd filed Critical British Nuclear Fuels Ltd
Publication of DE2728355A1 publication Critical patent/DE2728355A1/de
Application granted granted Critical
Publication of DE2728355C2 publication Critical patent/DE2728355C2/de
Granted legal-status Critical Current

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
    • 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
    • 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)
  • Remote Monitoring And Control Of Power-Distribution Networks (AREA)
  • Supply And Distribution Of Alternating Current (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Control Of Multiple Motors (AREA)
  • Control Of Electric Motors In General (AREA)
DE19772728355 1976-06-25 1977-06-23 Ueberwachungssystem Granted DE2728355A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2662276A GB1561845A (en) 1976-06-25 1976-06-25 Energy monitoring systems for electrical devices

Publications (2)

Publication Number Publication Date
DE2728355A1 DE2728355A1 (de) 1977-12-29
DE2728355C2 true DE2728355C2 (en, 2012) 1988-12-15

Family

ID=10246532

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772728355 Granted DE2728355A1 (de) 1976-06-25 1977-06-23 Ueberwachungssystem

Country Status (6)

Country Link
JP (1) JPS6037005Y2 (en, 2012)
AU (1) AU511012B2 (en, 2012)
DE (1) DE2728355A1 (en, 2012)
FR (1) FR2356151A1 (en, 2012)
GB (1) GB1561845A (en, 2012)
NL (1) NL7706847A (en, 2012)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242177A1 (de) * 1992-12-15 1994-06-16 Teves Gmbh Alfred Schaltungsanordnung zur Überwachung einer Vielzahl von Spulen

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4360879A (en) * 1980-08-28 1982-11-23 The Valeron Corporation Power measuring device
JPH0534206Y2 (en, 2012) * 1987-01-23 1993-08-30
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
EP0787305B1 (de) * 1994-10-27 1998-05-13 Siemens Aktiengesellschaft Schaltgerät mit überwachung des abbrandes wenigstens eines kontaktstückes

Family Cites Families (2)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4242177A1 (de) * 1992-12-15 1994-06-16 Teves Gmbh Alfred Schaltungsanordnung zur Überwachung einer Vielzahl von Spulen

Also Published As

Publication number Publication date
AU511012B2 (en) 1980-07-24
NL7706847A (nl) 1977-12-28
AU2599577A (en) 1978-12-14
JPS6037005Y2 (ja) 1985-11-02
JPS5323525U (en, 2012) 1978-02-28
GB1561845A (en) 1980-03-05
FR2356151A1 (fr) 1978-01-20
DE2728355A1 (de) 1977-12-29
FR2356151B1 (en, 2012) 1983-09-30

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8128 New person/name/address of the agent

Representative=s name: SCHWABE, H., DIPL.-ING. SANDMAIR, K., DIPL.-CHEM.

8125 Change of the main classification

Ipc: G01R 21/00

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee