GB566645A - An improved counting device for over voltages - Google Patents

An improved counting device for over voltages

Info

Publication number
GB566645A
GB566645A GB17042/43A GB1704243A GB566645A GB 566645 A GB566645 A GB 566645A GB 17042/43 A GB17042/43 A GB 17042/43A GB 1704243 A GB1704243 A GB 1704243A GB 566645 A GB566645 A GB 566645A
Authority
GB
United Kingdom
Prior art keywords
resistance
current
diaphragm
counting
pin
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
GB17042/43A
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.)
Landis and Gyr AG
Original Assignee
Landis and Gyr AG
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 Landis and Gyr AG filed Critical Landis and Gyr AG
Publication of GB566645A publication Critical patent/GB566645A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K21/00—Details of pulse counters or frequency dividers
    • H03K21/02—Input circuits
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R13/00—Arrangements for displaying electric variables or waveforms
    • G01R13/04—Arrangements for displaying electric variables or waveforms for producing permanent records
    • 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
    • G01R19/16533—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 application
    • G01R19/16538—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 application in AC or DC supplies
    • 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
    • H02H3/02—Details
    • H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
    • H02H3/048—Checking overvoltage diverters

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Measuring Fluid Pressure (AREA)
  • Geophysics And Detection Of Objects (AREA)
  • Fuses (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Recording Measured Values (AREA)

Abstract

566,645. Thermal instruments. LANDIS & GYR SOC. ANON. Oct. 16, 1943, No. 17042. Convention date, Nov. 7, 1942. [Class 37] In apparatus for counting current impulses of short duration, such as those resulting from atmospheric effects or switching operations on long lines, a fraction of the diverted current flowing through a diverting resistance is passed through a resistance arranged in a vessel filled with gas, the gas expanding under the influence of the heating which takes place and actuating a counting device through a flexible diaphragm. A heating resistance 1 is supported by current leads 12 passing through a glass foot 11 to which is fused a flange 10 connected to a corrugated metal extensible diaphragm 3. The extensible chamber thus formed is filled with an inert gas of low specific heat and is supported by a socket 13 with connecting pins 14. On the cover of the corrugated metal tube 3 is arranged a pin 15 which transmits the movement of the diaphragm through a lever 16, toothed segment 17, and gear-wheel 18 to a counting mechanism 19. A second diaphragm 20 compensates for the effect of ambient temperature on the diaphragm 3. The pin 15 may, alternatively, close a contact in the circuit of a relay which operates the counter. In another arrangement the counter is operated by clockwork, operation of the pin 15 releasing a wheel in the train and permitting it to make one revolution, which causes the counting train to be advanced by one figure. A protective surge diverter 6, Fig. 1, is connected between the overhead line 5 and earth. In the earth lead is a resistance 8 across which the heating resistance 1 is connected. The resistance 8 may be such that the voltage across it does not rise with the current strength according to a straight line law, so that the heating resistance 1 is protected against excess current. A choking coil 9 is connected across the resistance 8, its inductance being so chosen that its impedance is high for the surge discharge, but small for the follow current. The apparatus may be combined with a recording arrangement for the determination of the approximate strength of the diverted current, the movement of the diaphragm being utilised for measuring the current.
GB17042/43A 1942-11-07 1943-10-16 An improved counting device for over voltages Expired GB566645A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH229050T 1942-11-07

Publications (1)

Publication Number Publication Date
GB566645A true GB566645A (en) 1945-01-08

Family

ID=32180081

Family Applications (2)

Application Number Title Priority Date Filing Date
GB17042/43A Expired GB566645A (en) 1942-11-07 1943-10-16 An improved counting device for over voltages
GB7154/45A Expired GB589276A (en) 1942-11-07 1945-03-21 Improved apparatus for the counting and measurement of current impulses of short duration

Family Applications After (1)

Application Number Title Priority Date Filing Date
GB7154/45A Expired GB589276A (en) 1942-11-07 1945-03-21 Improved apparatus for the counting and measurement of current impulses of short duration

Country Status (7)

Country Link
US (2) US2405121A (en)
BE (1) BE460789A (en)
CH (2) CH229050A (en)
DE (1) DE861895C (en)
FR (2) FR898240A (en)
GB (2) GB566645A (en)
NL (1) NL62344C (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2528744A (en) * 1944-11-30 1950-11-07 Landis & Gyr Ag Electromagnetic appliance
US2630860A (en) * 1946-08-31 1953-03-10 Affiliated Gas Equipment Inc Burner control means
US2515677A (en) * 1947-05-23 1950-07-18 Rca Corp Direct current limiter and counter circuit
US2557848A (en) * 1948-05-28 1951-06-19 Rca Corp Arc-back counter
US2625822A (en) * 1949-06-15 1953-01-20 Taylor Instr Compagnies Digital indicating arrangement for measuring systems
US2550460A (en) * 1950-04-06 1951-04-24 George M Farly Monitoring circuit
DE863697C (en) * 1951-02-22 1953-01-19 Brown Ag Device for counting returns in mutators
US2888198A (en) * 1954-03-24 1959-05-26 Westinghouse Electric Corp Automatic circuit reclosers
DE1041124B (en) * 1957-02-11 1958-10-16 W Helmut Schmidt Display device for lightning strikes in house lightning protection systems
US3020727A (en) * 1959-11-02 1962-02-13 Dole Valve Co Heat motor for a rotary ice tray
US3248871A (en) * 1960-09-30 1966-05-03 Jr John E Lindberg Method and apparatus for power transmission and actuation
US3538440A (en) * 1968-08-30 1970-11-03 Westinghouse Electric Corp Voltage detector for shielded conductor providing substantially constant output voltage over wide range of input voltage
US3766536A (en) * 1971-12-15 1973-10-16 Gen Motors Corp Catalytic converter monitor
FR2452175A1 (en) * 1979-03-23 1980-10-17 Alsthom Unelec Sa ELECTRICAL AIR CUT-OFF APPARATUS PROVIDED WITH A SHORT-CIRCUIT INDICATOR DEVICE

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US884047A (en) * 1908-01-13 1908-04-07 John E Shepherd Automatic alarm system.
US1056459A (en) * 1908-01-20 1913-03-18 Automatic Fire Prot Company Automatic fire-protection signal system.
US989347A (en) * 1910-05-02 1911-04-11 Internat Electric Prot Company Electrical thermostat.
US1695534A (en) * 1925-02-27 1928-12-18 William C Carter Pump diaphragm
US1899746A (en) * 1929-04-03 1933-02-28 Westinghouse Electric & Mfg Co Protective system for transformers
US2024060A (en) * 1933-05-23 1935-12-10 Roberto J Peralta Electric current control device
US2021079A (en) * 1934-04-23 1935-11-12 Crosley Radio Corp Restricted flow device
US2227668A (en) * 1938-08-11 1941-01-07 Jules F Bonal Governor
US2271307A (en) * 1938-10-21 1942-01-27 William A Ray Thermal operator

Also Published As

Publication number Publication date
CH238954A (en) 1945-08-31
FR898240A (en) 1945-04-13
US2405121A (en) 1946-08-06
BE460789A (en) 1945-11-30
NL62344C (en) 1948-08-06
FR53800E (en) 1946-09-06
DE861895C (en) 1953-01-08
CH229050A (en) 1943-09-30
GB589276A (en) 1947-06-16
US2493448A (en) 1950-01-03

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