US2495448A - Response counter for totalizing current surges of varying magnitudes - Google Patents

Response counter for totalizing current surges of varying magnitudes Download PDF

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Publication number
US2495448A
US2495448A US585131A US58513145A US2495448A US 2495448 A US2495448 A US 2495448A US 585131 A US585131 A US 585131A US 58513145 A US58513145 A US 58513145A US 2495448 A US2495448 A US 2495448A
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US
United States
Prior art keywords
current
counter
spring
wing
current surges
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
US585131A
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English (en)
Inventor
Fehr Paul
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
Application granted granted Critical
Publication of US2495448A publication Critical patent/US2495448A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06M—COUNTING MECHANISMS; COUNTING OF OBJECTS NOT OTHERWISE PROVIDED FOR
    • G06M1/00—Design features of general application
    • G06M1/08—Design features of general application for actuating the drive
    • G06M1/10—Design features of general application for actuating the drive by electric or magnetic means
    • G06M1/102—Design features of general application for actuating the drive by electric or magnetic means by magnetic or electromagnetic means

Definitions

  • the present invention relates to a response counter for overvoltages on long overhead lines due to atmospheric influencesYor switchings and has for its purpose numerically ascertaining the peration of overvol-tage suppressors by taking into account the approximate strength of the arrester current.
  • a lid 14 serves for mounting and pro tr nsmitted over a set scr w 1. o o a rs tripe lev b ing pivo elly arr nged about an a is mid h sed by an adjus abl spr n l8 aga t abu men is. The free ex em f the tr ole erl i ork d and each Iu c ion ea ri no lpin 2.0 a 21 res ect e y for a release asserting 2,2.
  • a heating filament s housed within tank I is 7 warmed proportional to the current surge according to the strength and duration of the impulse. This heating causes expansion of the air in tank I.
  • the pressure thus 2 which flexes upwardly moving with it the piston l2.
  • the trip-relay 44 is in its turn only actuated if upon decay of an overvoltage surge there still flows a line current following it. In this case this relay gets energized so far that it attracts its armature 43, whereby the control pin 42 releases the wing 4l. In this event, too, the conditions are so provided that the release wing 4
  • a front plate has consequently four openings for the counters I, II, III and IV and an aperture for the spring index lever SI.
  • On the counter I, H and III pressure surges of growing strength are indicated, whereby the counter I integrates surges of minor and the counter In those of major strength, whereas counter II fulfills the same task for current surges of average strength. Due to the adjustability of the play between the diaphragm piston and the first trip-lever and between the various triplevers one is free to select at will the strength of the surges to be counted. Hence the counters I, II and III indicate not only the number of the surges occurred, but valuable deductions may be made therefrom as to the energy of the current 'waves which has been effective.
  • the counter IV registers the number of the cases in which a line current has followed a surge.
  • a small current surge causes actuation of register exerted acts on diaphragm I2 is trans- I
  • a larger surge causes actuation of registers I and II while a maximum current surge causes registers I, II and III to be actuated, and in case the surge is followed by a line current, register IV is additionally actuated.
  • the counters remain not limited in number. There might be utilized just as well less or more than three units.
  • Both the heating filament 6 and the coil of the trip-relay 44 are placed in parallel on a voltagedependent resistance (not shown) being put in series with the over-voltage arrester.
  • This arrangement sets out to achieve that the current in the filament resistance 6 does not increase in proportion to the arrester current, but reaches only a peak value which lies far below that of the suppressor current.
  • the voltage-dependent resistance has consequently a flattening effect and is I intended to avoid a destruction of the filament resistance in the event of very intense discharges.
  • a device for counting and measuring electric current impulses by utilizing a fraction of the suppressed current traversing an arrester resistance to move an element in accordance with the strength of the suppressed current the combination of a plurality of spring loaded counters, individual escapements for each of said counters, selectively operable releasing means for the escapements, an actuator for said releasing means, said actuator being connected to each of said releasing means and simultaneously moving said releasing means to diiferent extents in accordance with the strength of the suppressed. current, one of said releasing means operating its escapement on movement of said actuator, and another releasing means operating solely on larger movements of said actuator.
  • a device as claimed in claim 1 in which all of said counters are connected to and loaded by a single spring motor.
  • a device as claimed in claim 2 in which the spring motor is drivingly connected to the counters through a plurality of diflerential gearings.
  • escapement releasing means comprise a plurality of interlinked levers movable to diflerent degrees dependent on the strength of the current, one or more of said escapements being released by movement of said levers.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Electromagnetism (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Thermistors And Varistors (AREA)
  • Measuring Volume Flow (AREA)
US585131A 1944-03-27 1945-03-27 Response counter for totalizing current surges of varying magnitudes Expired - Lifetime US2495448A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH590674X 1944-03-27

Publications (1)

Publication Number Publication Date
US2495448A true US2495448A (en) 1950-01-24

Family

ID=4522125

Family Applications (1)

Application Number Title Priority Date Filing Date
US585131A Expired - Lifetime US2495448A (en) 1944-03-27 1945-03-27 Response counter for totalizing current surges of varying magnitudes

Country Status (5)

Country Link
US (1) US2495448A (de)
CH (1) CH239290A (de)
DE (1) DE849194C (de)
FR (1) FR912676A (de)
GB (1) GB590674A (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2709800A (en) * 1953-03-10 1955-05-31 Clarence V Temple Power line fault detector
US2781975A (en) * 1951-04-25 1957-02-19 Landis & Gyr Ag Totalizing meter

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US351164A (en) * 1886-10-19 Engine-counter
US1403182A (en) * 1920-12-27 1922-01-10 Lysle S Maturin Counting device
US1513811A (en) * 1923-03-06 1924-11-04 Heinold Robert Device for counting differently-loaded vehicles
US1549456A (en) * 1922-02-11 1925-08-11 Gen Electric Electric discharge indicator
US1744259A (en) * 1925-07-02 1930-01-21 Chester L Carlson Switch mechanism for counters
US2200233A (en) * 1939-01-04 1940-05-07 Edwin R Whitehead Surge responsive device
US2340635A (en) * 1941-05-31 1944-02-01 Gen Electric Registering means for automatic reclosing circuit breaker systems
US2367329A (en) * 1940-08-03 1945-01-16 Landis & Gyr Ag Exhibiting device for short electrical impulses

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US351164A (en) * 1886-10-19 Engine-counter
US1403182A (en) * 1920-12-27 1922-01-10 Lysle S Maturin Counting device
US1549456A (en) * 1922-02-11 1925-08-11 Gen Electric Electric discharge indicator
US1513811A (en) * 1923-03-06 1924-11-04 Heinold Robert Device for counting differently-loaded vehicles
US1744259A (en) * 1925-07-02 1930-01-21 Chester L Carlson Switch mechanism for counters
US2200233A (en) * 1939-01-04 1940-05-07 Edwin R Whitehead Surge responsive device
US2367329A (en) * 1940-08-03 1945-01-16 Landis & Gyr Ag Exhibiting device for short electrical impulses
US2340635A (en) * 1941-05-31 1944-02-01 Gen Electric Registering means for automatic reclosing circuit breaker systems

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2781975A (en) * 1951-04-25 1957-02-19 Landis & Gyr Ag Totalizing meter
US2709800A (en) * 1953-03-10 1955-05-31 Clarence V Temple Power line fault detector

Also Published As

Publication number Publication date
GB590674A (en) 1947-07-24
CH239290A (de) 1945-09-30
DE849194C (de) 1952-09-11
FR912676A (fr) 1946-08-16

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