FR2424651A1 - Current surge limiter with transformer - has two threshold controlling potentiometers connected to flip=flop monitoring triac - Google Patents

Current surge limiter with transformer - has two threshold controlling potentiometers connected to flip=flop monitoring triac

Info

Publication number
FR2424651A1
FR2424651A1 FR7813292A FR7813292A FR2424651A1 FR 2424651 A1 FR2424651 A1 FR 2424651A1 FR 7813292 A FR7813292 A FR 7813292A FR 7813292 A FR7813292 A FR 7813292A FR 2424651 A1 FR2424651 A1 FR 2424651A1
Authority
FR
France
Prior art keywords
flip
flop
triac
current surge
transformer
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.)
Granted
Application number
FR7813292A
Other languages
French (fr)
Other versions
FR2424651B1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to FR7813292A priority Critical patent/FR2424651A1/en
Publication of FR2424651A1 publication Critical patent/FR2424651A1/en
Application granted granted Critical
Publication of FR2424651B1 publication Critical patent/FR2424651B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/26—Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occured
    • H02H7/30—Staggered disconnection

Landscapes

  • Power Conversion In General (AREA)

Abstract

The current surge limiter isolating equipment from its power supply is dependent on pre-set thresholds being exceeded. Surge detection is by an inductive winding (1) permanently in place around the supply line feeding a shunt resistor (2) and rectifier diode-capacitor pair. Its output controls a pair of amplifier stages (5, 6) via two threshold controlling potentiometers (3, 4) the outputs of which control a flip-flop (R, S). The flip-flop controls the operation of an inverter (9), and conduction state of a transistor (11) preceeding the triac (12) in series with the equipment supply line.
FR7813292A 1978-04-28 1978-04-28 Current surge limiter with transformer - has two threshold controlling potentiometers connected to flip=flop monitoring triac Granted FR2424651A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7813292A FR2424651A1 (en) 1978-04-28 1978-04-28 Current surge limiter with transformer - has two threshold controlling potentiometers connected to flip=flop monitoring triac

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7813292A FR2424651A1 (en) 1978-04-28 1978-04-28 Current surge limiter with transformer - has two threshold controlling potentiometers connected to flip=flop monitoring triac

Publications (2)

Publication Number Publication Date
FR2424651A1 true FR2424651A1 (en) 1979-11-23
FR2424651B1 FR2424651B1 (en) 1981-10-16

Family

ID=9207923

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7813292A Granted FR2424651A1 (en) 1978-04-28 1978-04-28 Current surge limiter with transformer - has two threshold controlling potentiometers connected to flip=flop monitoring triac

Country Status (1)

Country Link
FR (1) FR2424651A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593000A1 (en) * 1986-01-15 1987-07-17 Merlin Gerin Load-shedding device for electrical installations
EP0233127A1 (en) * 1986-01-15 1987-08-19 Merlin Gerin Circuit-breaking relay

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2014397A1 (en) * 1968-06-28 1970-04-17 Singer Co
US3866019A (en) * 1972-09-14 1975-02-11 Cartier Jean Pierre Electrical control circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2014397A1 (en) * 1968-06-28 1970-04-17 Singer Co
US3866019A (en) * 1972-09-14 1975-02-11 Cartier Jean Pierre Electrical control circuit

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NV2328/77 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2593000A1 (en) * 1986-01-15 1987-07-17 Merlin Gerin Load-shedding device for electrical installations
EP0233127A1 (en) * 1986-01-15 1987-08-19 Merlin Gerin Circuit-breaking relay

Also Published As

Publication number Publication date
FR2424651B1 (en) 1981-10-16

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Legal Events

Date Code Title Description
ST Notification of lapse