US3423637A - Control of a relay chain circuit - Google Patents

Control of a relay chain circuit Download PDF

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Publication number
US3423637A
US3423637A US556073A US3423637DA US3423637A US 3423637 A US3423637 A US 3423637A US 556073 A US556073 A US 556073A US 3423637D A US3423637D A US 3423637DA US 3423637 A US3423637 A US 3423637A
Authority
US
United States
Prior art keywords
fuse
contact
switching means
circuit
relay
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 - Lifetime
Application number
US556073A
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English (en)
Inventor
Otto Hillmann
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.)
International Standard Electric Corp
Original Assignee
International Standard Electric Corp
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 International Standard Electric Corp filed Critical International Standard Electric Corp
Application granted granted Critical
Publication of US3423637A publication Critical patent/US3423637A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/001—Functional circuits, e.g. logic, sequencing, interlocking circuits

Definitions

  • the present invention relates to the control of a chain circuit, and particularly of a chain circuit consisting of a plurality of switching means. More specifically, the first switching means is operated directly via an input contact and each further switching means is operated via a contact of the respective preceding switching means. Each of the switching means is protected by a fuse equipped with a switch.
  • the elements may be subdivided into groups and each group may be controlled through one or several contacts of an inserted chain of switching means.
  • the switching elements may include relays, circuit breakers, fuses having external contact elements and other making devices. It may be necessary to introduce a delay to prevent all the switching means from being energized simultaneously, and thus to protect the current supply facility against an undesirably heavy surge.
  • circuit arrangement is now describe-d with the aid of an example, shown in the figure and used in telecommunication and telephone engineering, respectively.
  • the coil circuit of relay A1 is closed by actuating the "ice input contact zK via the fuse contact sil of the fuse Sil.
  • the fuse used is of the general kind employed in alarm circuits in which rupture of the heating element releases a spring which closes a second contact thus completing an alarm circuit. In the present instance, a break in the fuse heating element operates a spring to close a contact and complete a ground connection for a relay. The fuse is shown in its non-operative position.
  • the relay A2 is energized via a make-contact al of the relay A1 and the fuse contact si2 of the pertinent fuse Si2. This process is continued within the chain until the final relay An has responded.
  • the corresponding fuse will close a contact to couple a circuit for the succeeding relay. For example, if relay A2 is disturbed, the coil circuit of relay A3, held closed via the contact 02 of the relay A2 is interrupted, but via the fuse contact .912 of the fuse Si2 which has operated, the relay A3 and all following relays can respond or hold in operation.
  • the circuit serves to control counting pulse generators being connected as similar switching elements to the contacts (all anl to alm anm) of the inserted relays (Al An).
  • a chain circuit comprising a plurality of switching means
  • a first switching means responsive to signals transmitted through said input contact to close a second contact
  • each fuse including a make contact switch connected between the input contact and the succeeding switching means to close upon operation of the fuse and thereby enable said succeeding switching means to stay in operative condition.
  • said first switching means includes a control winding with one winding end connected to one pole of a voltage source via a first fuse and the other winding end connected to a break contact of the switch of said first fuse, and the movable portion of the first fuse switch is connected with the opposite pole of the voltage source via the input contact.
  • 3 4 the input contact is a contact of a clock pulse generator 3,315,127 4/ 1967 Lenz 31726 controlling via said chain circuit contacts of con- 3,315,129 4/ 1967 Fisher 317-26 necting pulse generators.

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  • Keying Circuit Devices (AREA)
  • Relay Circuits (AREA)
US556073A 1965-06-24 1966-06-08 Control of a relay chain circuit Expired - Lifetime US3423637A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST24021A DE1298178B (de) 1965-06-24 1965-06-24 Anordnung zur Steuerung einer Kettenschaltung, die aus einer Anzahl von monostabil arbeitenden elektromagnetischen Schaltmitteln besteht

Publications (1)

Publication Number Publication Date
US3423637A true US3423637A (en) 1969-01-21

Family

ID=7459939

Family Applications (1)

Application Number Title Priority Date Filing Date
US556073A Expired - Lifetime US3423637A (en) 1965-06-24 1966-06-08 Control of a relay chain circuit

Country Status (4)

Country Link
US (1) US3423637A (cs)
CH (1) CH470023A (cs)
DE (1) DE1298178B (cs)
NL (1) NL6608628A (cs)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979648A (en) * 1975-03-10 1976-09-07 Nohmi Bosai Kogyo Co., Ltd. System for operating fire prevention devices
WO1986005330A1 (en) * 1985-03-08 1986-09-12 Ernst Leitz Wetzlar Gmbh Circuit arrangement for simultaneous connection of several users to a supply network

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109416569B (zh) * 2016-07-13 2021-10-29 三菱电机株式会社 无电压输出以及有电压输出的切换电路

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861222A (en) * 1952-11-06 1958-11-18 Allis Chalmers Mfg Co Electrical distribution system with automatic sectionalizing switch
US3045168A (en) * 1959-09-25 1962-07-17 Westinghouse Electric Corp Electrical circuit for indicating the failure of diodes
US3262018A (en) * 1962-03-21 1966-07-19 Int Standard Electric Corp Fuse protection system with an auxiliary high current voltage source for selective disconnection of loads under fault conditions
US3315129A (en) * 1964-10-29 1967-04-18 Gen Electric Circuit protective system
US3315127A (en) * 1964-03-04 1967-04-18 Western Electric Co Restoring circuit means for isolating the defective branch and reconnecting the remaining branches

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2861222A (en) * 1952-11-06 1958-11-18 Allis Chalmers Mfg Co Electrical distribution system with automatic sectionalizing switch
US3045168A (en) * 1959-09-25 1962-07-17 Westinghouse Electric Corp Electrical circuit for indicating the failure of diodes
US3262018A (en) * 1962-03-21 1966-07-19 Int Standard Electric Corp Fuse protection system with an auxiliary high current voltage source for selective disconnection of loads under fault conditions
US3315127A (en) * 1964-03-04 1967-04-18 Western Electric Co Restoring circuit means for isolating the defective branch and reconnecting the remaining branches
US3315129A (en) * 1964-10-29 1967-04-18 Gen Electric Circuit protective system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3979648A (en) * 1975-03-10 1976-09-07 Nohmi Bosai Kogyo Co., Ltd. System for operating fire prevention devices
WO1986005330A1 (en) * 1985-03-08 1986-09-12 Ernst Leitz Wetzlar Gmbh Circuit arrangement for simultaneous connection of several users to a supply network

Also Published As

Publication number Publication date
NL6608628A (cs) 1966-12-27
CH470023A (de) 1969-03-15
DE1298178B (de) 1969-06-26

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