ES8406739A1 - Zero crossing circuit. - Google Patents

Zero crossing circuit.

Info

Publication number
ES8406739A1
ES8406739A1 ES526671A ES526671A ES8406739A1 ES 8406739 A1 ES8406739 A1 ES 8406739A1 ES 526671 A ES526671 A ES 526671A ES 526671 A ES526671 A ES 526671A ES 8406739 A1 ES8406739 A1 ES 8406739A1
Authority
ES
Spain
Prior art keywords
supply
zero crossing
input
output signal
circuit
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
ES526671A
Other languages
Spanish (es)
Other versions
ES526671A0 (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.)
HAWKER SIDDELEY REVENUE CONTR
Original Assignee
HAWKER SIDDELEY REVENUE CONTR
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 HAWKER SIDDELEY REVENUE CONTR filed Critical HAWKER SIDDELEY REVENUE CONTR
Publication of ES526671A0 publication Critical patent/ES526671A0/en
Publication of ES8406739A1 publication Critical patent/ES8406739A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/54—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere
    • H01H9/56—Circuit arrangements not adapted to a particular application of the switching device and for which no provision exists elsewhere for ensuring operation of the switch at a predetermined point in the ac cycle
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/02—Non-polarised relays
    • H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
    • H01H51/12—Armature is movable between two limit positions of rest and is moved in both directions due to the energisation of one or the other of two electromagnets without the storage of energy to effect the return movement

Abstract

A microprocessor-based zero crossing circuit produces in response to an input command provided by closure of a switch (18) an output signal (13, 14) which is synchronised with the zero crossing points of an a.c. supply and includes a predetermined delay. By this means the output signal (13, 14) may be used to operate or control operation of, for example, a circuit breaker for the a.c. supply in order to minimise contact arcing. The circuit is useful in an electricity supply meter when the input command on input 12 is generated by a credit or prepayment mechanism which acts to cut-off an a.c. supply on expiry of credit. Following a cut-off command on input 12 the circuit produces the synchronised output signal (13, 14) appropriately delayed to take into account the operating time of the circuit breaker so that its contacts (20, 21) open as nearly coincident as possible with a zero crossing point of the supply.
ES526671A 1982-10-23 1983-10-21 Zero crossing circuit. Expired ES8406739A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08230339A GB2130436A (en) 1982-10-23 1982-10-23 Zero crossing circuit for arcing preventing in circuit breakers

Publications (2)

Publication Number Publication Date
ES526671A0 ES526671A0 (en) 1984-08-01
ES8406739A1 true ES8406739A1 (en) 1984-08-01

Family

ID=10533813

Family Applications (1)

Application Number Title Priority Date Filing Date
ES526671A Expired ES8406739A1 (en) 1982-10-23 1983-10-21 Zero crossing circuit.

Country Status (5)

Country Link
EP (1) EP0108538A1 (en)
AU (1) AU2044683A (en)
ES (1) ES8406739A1 (en)
GB (2) GB2130436A (en)
ZA (1) ZA837773B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3427478A1 (en) * 1984-07-25 1986-02-06 Siemens AG, 1000 Berlin und 8000 München METHOD AND DEVICE FOR SWITCHING LOADS AVOIDING HIGH SWITCH-IN CURRENT PEAKS
DE3681326D1 (en) * 1985-04-19 1991-10-17 Siemens Ag CONTROL CIRCUIT FOR AN ELECTROMAGNETIC RELAY FOR SWITCHING AN AC VOLTAGE LOAD CIRCUIT.
DE3812734A1 (en) * 1988-04-16 1989-10-26 Asea Brown Boveri METHOD AND DEVICE FOR CONTROLLING A DRIVE DEVICE OF A MEDIUM OR HIGH VOLTAGE SWITCHING DEVICE
NO167424C (en) * 1989-03-06 1991-10-30 Sinvent As PROCEDURE AND DEVICE FOR CONNECTION RESP. DISCONNECTING A LOAD CIRCUIT IN AN ELECTRIC AC POWER NETWORK.
GB2233824B (en) * 1989-07-06 1993-12-22 B & R Electrical Plc Design of a solenoid actuated relay
DE69320250T2 (en) * 1992-05-20 1998-12-17 Texas Instruments Inc Method and device for extending the life of a relay
GB2299712B (en) * 1995-04-07 1999-08-11 Thompson Royce Ltd Switching controller
US5821642A (en) * 1996-11-04 1998-10-13 Hubbell Incorporated Arc prevention circuit for a mechanical switch
ES2153776B1 (en) * 1999-04-19 2001-10-01 Univ Coruna INSTANT ADJUSTMENT CLOSURE MODULE OF A CONTACTOR.
FR2953938B1 (en) * 2009-12-14 2012-04-13 Sagem Comm METHOD FOR OPENING OR CLOSING AN ELECTRICAL CIRCUIT AT AN ELECTRIC COUNTER
US9793716B2 (en) 2014-04-24 2017-10-17 Elster Solutions, Llc Power meter disconnect switch operation

Family Cites Families (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB253143A (en) *
GB248821A (en) * 1924-12-05 1926-03-05 Gramophone Co Ltd Improvements in sound reproducing systems
US2032475A (en) * 1927-09-28 1936-03-03 Otis Elevator Co Elevator system
GB336575A (en) * 1929-07-13 1930-10-13 John Stewart Burns Improvements in or relating to electric switches
GB428529A (en) * 1933-10-06 1935-05-07 Gen Electric Co Ltd Improvements in mechanisms for operating electric switches or other devices with snap action and adapted to be actuated electromagnetically
GB423967A (en) * 1933-11-27 1935-02-12 Herbert Victor Harwood Improvements in or relating to electricity meters
GB969915A (en) * 1961-07-18 1964-09-16 Central Electr Generat Board Improvements in or relating to electrical circuit-breakers
US3243656A (en) * 1963-09-09 1966-03-29 Allis Chalmers Mfg Co Circuit interrupter control responsive to wave form
US3265933A (en) * 1963-10-24 1966-08-09 Allis Chalmers Mfg Co Control circuit for operating circuit interrupter at a zero current point in system wave form
GB1130583A (en) * 1965-06-02 1968-10-16 English Electric Co Ltd Control systems for switching an a.c. electric supply
GB1135092A (en) * 1966-05-19 1968-11-27 Allis Chalmers Mfg Co Improved circuit for controlling a circuit interrupter device
US3566152A (en) * 1969-07-23 1971-02-23 Gen Electric High voltage electric circuit breaker including a synchronously closed resistor switch
US3702941A (en) * 1971-06-14 1972-11-14 Rca Corp Zero crossing point switching circuit
US3950657A (en) * 1974-10-21 1976-04-13 Rca Corporation Timer circuits
US4001643A (en) * 1975-05-29 1977-01-04 The United States Of America As Represented By The Secretary Of The Interior Method and apparatus for a power circuit breaker controller
US4010386A (en) * 1976-01-20 1977-03-01 Burroughs Corporation Synchronous switch control circuit
DE2753765C2 (en) * 1976-12-03 1986-03-20 Hitachi, Ltd., Tokio/Tokyo Relay control circuit
US4178572A (en) * 1978-04-03 1979-12-11 Gould Inc. Load management apparatus
JPS5845212B2 (en) * 1979-03-05 1983-10-07 株式会社芝浦電子製作所 Zero cross pulse generation circuit
US4296449A (en) * 1979-08-27 1981-10-20 General Electric Company Relay switching apparatus
GB2069762A (en) * 1980-02-14 1981-08-26 Lyons Claude Ltd Arrangement for controlling the operation of switch contacts
US4306263A (en) * 1980-03-28 1981-12-15 Gould Inc. Synchronous closing system and latch therefor
US4311956A (en) * 1980-06-19 1982-01-19 Pitney Bowes Inc. Zero crossing phase fired controller
US4356525A (en) * 1981-01-05 1982-10-26 General Electric Company Method and circuit for controlling a hybrid contactor
DE3278727D1 (en) * 1981-04-21 1988-08-04 Mainmet Ltd Energy controller

Also Published As

Publication number Publication date
AU2044683A (en) 1984-05-03
EP0108538A1 (en) 1984-05-16
ZA837773B (en) 1984-06-27
GB8313850D0 (en) 1983-06-22
GB2130012A (en) 1984-05-23
ES526671A0 (en) 1984-08-01
GB2130436A (en) 1984-05-31

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000201