FR2318540A1 - Controlled contact breaker circuit - provides controlled application of power minimising contact damage by using thyristor or trial to isolate switch - Google Patents

Controlled contact breaker circuit - provides controlled application of power minimising contact damage by using thyristor or trial to isolate switch

Info

Publication number
FR2318540A1
FR2318540A1 FR7522217A FR7522217A FR2318540A1 FR 2318540 A1 FR2318540 A1 FR 2318540A1 FR 7522217 A FR7522217 A FR 7522217A FR 7522217 A FR7522217 A FR 7522217A FR 2318540 A1 FR2318540 A1 FR 2318540A1
Authority
FR
France
Prior art keywords
thyristor
switch
controlled
power
contact
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.)
Withdrawn
Application number
FR7522217A
Other languages
French (fr)
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.)
TILLHET JEANNE
Original Assignee
TILLHET JEANNE
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 TILLHET JEANNE filed Critical TILLHET JEANNE
Priority to FR7522217A priority Critical patent/FR2318540A1/en
Publication of FR2318540A1 publication Critical patent/FR2318540A1/en
Withdrawn legal-status Critical Current

Links

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
    • H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
    • H01H47/18—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for introducing delay in the operation of the relay
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03K—PULSE TECHNIQUE
    • H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
    • H03K17/28—Modifications for introducing a time delay before switching
    • H03K17/292—Modifications for introducing a time delay before switching in thyristor, unijunction transistor or programmable unijunction transistor switches

Landscapes

  • Keying Circuit Devices (AREA)
  • Protection Of Static Devices (AREA)
  • Relay Circuits (AREA)

Abstract

A circuit controls the time of establishment of current in a line after the closing of an orthodox mechanical switch to the power supply. The design is intended to protect the switch contacts or a set of contactors and relays against arc damage etc. It is able to minimise oscillation in the power line. The load and switch are isolated by a thyristor (5) or triac. The cathode of the thyristor or triac is connected to the switch and the anode is connected to the load. The gate of the thyristor is controlled from a voltage stabiliser and an R.C. time delay circuit. An R.C. filter ensures that the gate control voltage is free of oscillation inducing signals.
FR7522217A 1975-07-16 1975-07-16 Controlled contact breaker circuit - provides controlled application of power minimising contact damage by using thyristor or trial to isolate switch Withdrawn FR2318540A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7522217A FR2318540A1 (en) 1975-07-16 1975-07-16 Controlled contact breaker circuit - provides controlled application of power minimising contact damage by using thyristor or trial to isolate switch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7522217A FR2318540A1 (en) 1975-07-16 1975-07-16 Controlled contact breaker circuit - provides controlled application of power minimising contact damage by using thyristor or trial to isolate switch

Publications (1)

Publication Number Publication Date
FR2318540A1 true FR2318540A1 (en) 1977-02-11

Family

ID=9157964

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7522217A Withdrawn FR2318540A1 (en) 1975-07-16 1975-07-16 Controlled contact breaker circuit - provides controlled application of power minimising contact damage by using thyristor or trial to isolate switch

Country Status (1)

Country Link
FR (1) FR2318540A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052883A1 (en) * 1980-11-25 1982-06-02 Giovanni Quinzio Auxiliary switching means

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0052883A1 (en) * 1980-11-25 1982-06-02 Giovanni Quinzio Auxiliary switching means

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Legal Events

Date Code Title Description
ST Notification of lapse