FR2380652A1 - DC current overload detector and cut=out driver - has zero insertion resistance and employs reed switch as sensor - Google Patents

DC current overload detector and cut=out driver - has zero insertion resistance and employs reed switch as sensor

Info

Publication number
FR2380652A1
FR2380652A1 FR7704297A FR7704297A FR2380652A1 FR 2380652 A1 FR2380652 A1 FR 2380652A1 FR 7704297 A FR7704297 A FR 7704297A FR 7704297 A FR7704297 A FR 7704297A FR 2380652 A1 FR2380652 A1 FR 2380652A1
Authority
FR
France
Prior art keywords
cut
reed switch
detector
sensor
out driver
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
FR7704297A
Other languages
French (fr)
Other versions
FR2380652B1 (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.)
SEIM
Original Assignee
SEIM
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 SEIM filed Critical SEIM
Priority to FR7704297A priority Critical patent/FR2380652A1/en
Publication of FR2380652A1 publication Critical patent/FR2380652A1/en
Application granted granted Critical
Publication of FR2380652B1 publication Critical patent/FR2380652B1/fr
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/10—Operating or release mechanisms
    • H01H71/12—Automatic release mechanisms with or without manual release
    • H01H71/24—Electromagnetic mechanisms
    • H01H71/2445—Electromagnetic mechanisms using a reed switch
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16504—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed
    • G01R19/16509—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the components employed using electromagnetic relays, e.g. reed relay
    • 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
    • H02H3/087—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 dc applications

Abstract

The appts. consists of a DC overload current detector and circuit breaker or cut - out driver. The detector operates without introducing a voltage drop in the monitored line, has a fast response and operates at a set current level. The detector is based on the use of a reed switch (2) placed in close proximity to the monitored line (1). The reed switch may be either normally open or closed and in both cases a coil (3) surrounding the reed envelope maintains the change of switch state as long as the supply is maintained, the coil also controls a transistor (4) which in turn drives the supply cut-out switch or an alarm (5).
FR7704297A 1977-02-09 1977-02-09 DC current overload detector and cut=out driver - has zero insertion resistance and employs reed switch as sensor Granted FR2380652A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7704297A FR2380652A1 (en) 1977-02-09 1977-02-09 DC current overload detector and cut=out driver - has zero insertion resistance and employs reed switch as sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7704297A FR2380652A1 (en) 1977-02-09 1977-02-09 DC current overload detector and cut=out driver - has zero insertion resistance and employs reed switch as sensor

Publications (2)

Publication Number Publication Date
FR2380652A1 true FR2380652A1 (en) 1978-09-08
FR2380652B1 FR2380652B1 (en) 1983-04-08

Family

ID=9186786

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7704297A Granted FR2380652A1 (en) 1977-02-09 1977-02-09 DC current overload detector and cut=out driver - has zero insertion resistance and employs reed switch as sensor

Country Status (1)

Country Link
FR (1) FR2380652A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656105A1 (en) * 1989-12-19 1991-06-21 Sagem Device for monitoring the operation of electrical loads of a vehicle
WO1996007192A2 (en) * 1994-08-26 1996-03-07 Siemens Aktiengesellschaft Electromechanical switching device and arrangement with several such devices

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2656105A1 (en) * 1989-12-19 1991-06-21 Sagem Device for monitoring the operation of electrical loads of a vehicle
WO1996007192A2 (en) * 1994-08-26 1996-03-07 Siemens Aktiengesellschaft Electromechanical switching device and arrangement with several such devices
WO1996007192A3 (en) * 1994-08-26 1996-05-30 Siemens Ag Electromechanical switching device and arrangement with several such devices
US5844493A (en) * 1994-08-26 1998-12-01 Siemens Aktiengesellschaft Electromechanical switching device and arrangement with several switching devices

Also Published As

Publication number Publication date
FR2380652B1 (en) 1983-04-08

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Legal Events

Date Code Title Description
ST Notification of lapse