FR1328811A - Transistorized electrical circuits applicable in particular to systems with electrical protection relays - Google Patents

Transistorized electrical circuits applicable in particular to systems with electrical protection relays

Info

Publication number
FR1328811A
FR1328811A FR903971A FR903971A FR1328811A FR 1328811 A FR1328811 A FR 1328811A FR 903971 A FR903971 A FR 903971A FR 903971 A FR903971 A FR 903971A FR 1328811 A FR1328811 A FR 1328811A
Authority
FR
France
Prior art keywords
electrical
systems
transistorized
protection relays
circuits applicable
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
FR903971A
Other languages
French (fr)
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.)
English Electric Co Ltd
Original Assignee
English Electric Co 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
Priority claimed from GB2628561A external-priority patent/GB947418A/en
Application filed by English Electric Co Ltd filed Critical English Electric Co Ltd
Priority to FR903971A priority Critical patent/FR1328811A/en
Application granted granted Critical
Publication of FR1328811A publication Critical patent/FR1328811A/en
Expired 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
    • H02H3/20—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 voltage
    • H02H3/202—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 voltage for dc systems
    • 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
    • H02H3/083—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 for three-phase systems
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/30—Modifications for providing a predetermined threshold before switching
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/51—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used
    • H03K17/56—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices
    • H03K17/60—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors
    • H03K17/64—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used by the use, as active elements, of semiconductor devices the devices being bipolar transistors having inductive loads
FR903971A 1961-07-20 1962-07-13 Transistorized electrical circuits applicable in particular to systems with electrical protection relays Expired FR1328811A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR903971A FR1328811A (en) 1961-07-20 1962-07-13 Transistorized electrical circuits applicable in particular to systems with electrical protection relays

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB2628561A GB947418A (en) 1961-07-20 1961-07-20 Improvements relating to electrical triggering circuits
FR903971A FR1328811A (en) 1961-07-20 1962-07-13 Transistorized electrical circuits applicable in particular to systems with electrical protection relays

Publications (1)

Publication Number Publication Date
FR1328811A true FR1328811A (en) 1963-05-31

Family

ID=26196647

Family Applications (1)

Application Number Title Priority Date Filing Date
FR903971A Expired FR1328811A (en) 1961-07-20 1962-07-13 Transistorized electrical circuits applicable in particular to systems with electrical protection relays

Country Status (1)

Country Link
FR (1) FR1328811A (en)

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