ZA6634B - Improvements in safety circuits incorporating saturable reactors - Google Patents

Improvements in safety circuits incorporating saturable reactors Download PDF

Info

Publication number
ZA6634B
ZA6634B ZA660034A ZA660034A ZA6634B ZA 6634 B ZA6634 B ZA 6634B ZA 660034 A ZA660034 A ZA 660034A ZA 660034 A ZA660034 A ZA 660034A ZA 6634 B ZA6634 B ZA 6634B
Authority
ZA
South Africa
Prior art keywords
van
die
safety circuits
saturable reactors
circuits incorporating
Prior art date
Application number
ZA660034A
Other languages
English (en)
Inventor
Jean Demeur
Original Assignee
Acec
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 Acec filed Critical Acec
Publication of ZA6634B publication Critical patent/ZA6634B/en

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F9/00—Magnetic amplifiers
    • H03F9/02—Magnetic amplifiers current-controlled, i.e. the load current flowing in both directions through a main coil
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/08—Operation of gates; Combined operation of gates and signals
    • B61L29/18—Operation by approaching rail vehicle or train
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L29/00—Safety means for rail/road crossing traffic
    • B61L29/24—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning
    • B61L29/28—Means for warning road traffic that a gate is closed or closing, or that rail traffic is approaching, e.g. for visible or audible warning electrically operated
    • B61L29/288—Wiring diagram of the signal control circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61L—GUIDING RAILWAY TRAFFIC; ENSURING THE SAFETY OF RAILWAY TRAFFIC
    • B61L5/00—Local operating mechanisms for points or track-mounted scotch-blocks; Visible or audible signals; Local operating mechanisms for visible or audible signals
    • B61L5/12—Visible signals
    • B61L5/18—Light signals; Mechanisms associated therewith, e.g. blinders
    • B61L5/1809—Daylight signals
    • B61L5/1881—Wiring diagrams for power supply, control or testing
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • 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
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F9/00—Magnetic amplifiers
    • H03F9/04—Magnetic amplifiers voltage-controlled, i.e. the load current flowing in only one direction through a main coil, e.g. Logan circuits
    • 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
    • H03K17/80—Electronic switching or gating, i.e. not by contact-making and –breaking characterised by the components used using non-linear magnetic devices; using non-linear dielectric devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F29/00—Variable transformers or inductances not covered by group H01F21/00
    • H01F29/14—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias
    • H01F2029/143—Variable transformers or inductances not covered by group H01F21/00 with variable magnetic bias with control winding for generating magnetic bias

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Train Traffic Observation, Control, And Security (AREA)
  • Electric Propulsion And Braking For Vehicles (AREA)
  • Control Of Electrical Variables (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Emergency Protection Circuit Devices (AREA)
ZA660034A 1965-01-12 1966-01-03 Improvements in safety circuits incorporating saturable reactors ZA6634B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE7595 1965-01-12
BE658170A BE658170A (fr) 1965-01-12 1965-01-12 Réactances saturables pour circuits de sécurité et circuits équipés de ces réactances

Publications (1)

Publication Number Publication Date
ZA6634B true ZA6634B (en) 1966-11-16

Family

ID=74667827

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA660034A ZA6634B (en) 1965-01-12 1966-01-03 Improvements in safety circuits incorporating saturable reactors

Country Status (12)

Country Link
US (1) US3389330A (cs)
BE (1) BE658170A (cs)
CA (1) CA804730A (cs)
CH (1) CH455928A (cs)
DE (1) DE1275140B (cs)
ES (1) ES361243A3 (cs)
FR (1) FR1463379A (cs)
GB (1) GB1129271A (cs)
IN (1) IN103333B (cs)
IT (1) IT778732B (cs)
NL (1) NL143860B (cs)
ZA (1) ZA6634B (cs)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4387306A (en) * 1981-06-22 1983-06-07 General Signal Corporation Vital contact checking circuit
US4600872A (en) * 1982-07-06 1986-07-15 Shepard Jr Francis H Apparatus for variable speed drive of an induction motor from a fixed frequency AC source
AU6284586A (en) * 1985-09-13 1987-04-07 Hasler A.G. Electric power converter
FR2633071B1 (fr) * 1988-06-16 1990-09-21 Alsthom Dispositif de validation d'etat

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE718555C (de) * 1932-07-16 1944-12-01 Siemens Ag Einrichtung zur kontaktlosen Regelung einer Wechselspannung
US2725519A (en) * 1952-03-31 1955-11-29 Westinghouse Electric Corp Magnetic amplifier electrical position control system
US3064181A (en) * 1956-09-04 1962-11-13 Bell Telephone Labor Inc Magnetic amplifier
US3270198A (en) * 1963-03-28 1966-08-30 Gen Signal Corp Highway crossing systems

Also Published As

Publication number Publication date
NL6600314A (nl) 1966-07-13
IN103333B (en) 1967-09-04
CH455928A (fr) 1968-05-15
US3389330A (en) 1968-06-18
DE1275140B (de) 1968-08-14
BE658170A (fr) 1965-07-12
FR1463379A (fr) 1966-12-23
GB1129271A (en) 1968-10-02
ES361243A3 (es) 1970-08-16
CA804730A (en) 1969-01-21
IT778732B (it) 1967-07-15
NL143860B (nl) 1974-11-15

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