SE396855B - Krets for overvakning av strommen till ett skyddsobjekt - Google Patents

Krets for overvakning av strommen till ett skyddsobjekt

Info

Publication number
SE396855B
SE396855B SE7312572A SE7312572A SE396855B SE 396855 B SE396855 B SE 396855B SE 7312572 A SE7312572 A SE 7312572A SE 7312572 A SE7312572 A SE 7312572A SE 396855 B SE396855 B SE 396855B
Authority
SE
Sweden
Prior art keywords
monitoring
circuit
power
protective object
protective
Prior art date
Application number
SE7312572A
Other languages
English (en)
Inventor
H F Rollecke
Original Assignee
Hartmann & Braun Ag
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
Priority claimed from DE19722245605 external-priority patent/DE2245605C3/de
Priority claimed from DE19722258174 external-priority patent/DE2258174C3/de
Priority claimed from DE19732337372 external-priority patent/DE2337372C3/de
Application filed by Hartmann & Braun Ag filed Critical Hartmann & Braun Ag
Publication of SE396855B publication Critical patent/SE396855B/sv

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
    • H02H3/08—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 excess current
    • H02H3/093—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 excess current with timing means
    • H02H3/0935—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 excess current with timing means the timing being determined by numerical means
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H6/00—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images
    • H02H6/005—Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working conditions using simulators of the apparatus being protected, e.g. using thermal images using digital thermal images
SE7312572A 1972-09-16 1973-09-14 Krets for overvakning av strommen till ett skyddsobjekt SE396855B (sv)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19722245605 DE2245605C3 (de) 1972-09-16 Schaltungsanordnung zur Überwachung der Erwärmung von stromdurchflossenen Schützlingen
DE19722258174 DE2258174C3 (de) 1972-11-28 1972-11-28 Schaltungsanordnung zur Überwachung der Erwärmung von stromdurchflossenen Schützlingen
DE19732337372 DE2337372C3 (de) 1973-07-23 1973-07-23 Schaltungsanordnung zur Überwachung der Erwärmung von stromdurchflossenen Schützlingen

Publications (1)

Publication Number Publication Date
SE396855B true SE396855B (sv) 1977-10-03

Family

ID=27184713

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7312572A SE396855B (sv) 1972-09-16 1973-09-14 Krets for overvakning av strommen till ett skyddsobjekt

Country Status (4)

Country Link
JP (1) JPS4992534A (sv)
FR (1) FR2200657B1 (sv)
GB (1) GB1436861A (sv)
SE (1) SE396855B (sv)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH591776A5 (sv) * 1975-11-14 1977-09-30 Bbc Brown Boveri & Cie
US4442472A (en) * 1982-03-26 1984-04-10 Siemens-Allis, Inc. Solid state trip circuit with digital timer
US4513342A (en) * 1983-01-31 1985-04-23 General Electric Company Current-squared-time (i2 t) protection system
GB2140633A (en) * 1983-04-29 1984-11-28 Plessey Co Plc Load tripping circuits
US4571658A (en) * 1983-06-22 1986-02-18 S&C Electric Company Control circuit for a circuit interrupter

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3019372A (en) * 1955-01-12 1962-01-30 Vickers Electrical Co Ltd Overheat electrical protection device
CH375071A (de) * 1960-02-03 1964-02-15 Bbc Brown Boveri & Cie Ein thermisches Abbild darstellende Schutzschaltung für ein elektrisches Gerät
FR2029881A5 (sv) * 1969-01-29 1970-10-23 Comp Generale Electricite
US3601586A (en) * 1969-02-28 1971-08-24 Intelligent Instr Inc Thermal calculator

Also Published As

Publication number Publication date
GB1436861A (en) 1976-05-26
FR2200657B1 (sv) 1978-01-13
FR2200657A1 (sv) 1974-04-19
JPS4992534A (sv) 1974-09-04

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