RO84121B1 - Idling automatic limiter for welding rectifiers - Google Patents

Idling automatic limiter for welding rectifiers

Info

Publication number
RO84121B1
RO84121B1 RO107424A RO10742482A RO84121B1 RO 84121 B1 RO84121 B1 RO 84121B1 RO 107424 A RO107424 A RO 107424A RO 10742482 A RO10742482 A RO 10742482A RO 84121 B1 RO84121 B1 RO 84121B1
Authority
RO
Romania
Prior art keywords
welding
source
relay
network
welded
Prior art date
Application number
RO107424A
Other languages
Romanian (ro)
Other versions
RO84121A2 (en
Inventor
Ioan Puie
Ferovian Maruster
Gheorghe Dumitrescu
Original Assignee
îNTREPRINDEREA DE VAGOANE
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 îNTREPRINDEREA DE VAGOANE filed Critical îNTREPRINDEREA DE VAGOANE
Priority to RO107424A priority Critical patent/RO84121B1/en
Publication of RO84121A2 publication Critical patent/RO84121A2/en
Publication of RO84121B1 publication Critical patent/RO84121B1/en

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  • Arc Welding Control (AREA)

Abstract

Limitatorul automat de mers în gol pentru redresoarele de sudura, conform inventiei, în scopul eliminarii diodei de putere, este constituit dintr-o sursa auxiliara de curent continuu introdusa într-un circuit, format dintr-un contact normal închis al contactorului de conectare a sursei de sudura la retea, o borna de masa a sursei, pamîntare, cleste de sudat si un releu electromagnetic care conecteaza sursa de sudura la retea prin închiderea circuitului electric, adica prin atingerea electrodului de masa sudat, iar pentru deconectarea de la retea a sursei de sudura, sursa auxiliara de curent continuu este introdusa în circuitul format din releul mentionat, un al doilea releu de timp cu temporizare la actionare si cu rezistenta mult mai mare decît primul si un contact normal deschis al contactorului, releul de timp, în cazul ca nu se sudeaza, va conecta de la retea sursa de sudura dupa un anumit timp reglat, iar daca se sudeaza, bobina releului de timp va fi suntata de trei diode legate în stea si în paralel pe o parte din punte trifazata a sursei de sudura, caz în care va actiona releul cu rezistenta bobinei mai mica, mentinînd în continuare sursa de sudura la retea.The automatic idling limiter for the welding rectifiers according to the invention for the purpose of removing the power diode is an auxiliary DC source introduced into a circuit consisting of a normally closed contact of the source connection contactor welding grid, grounding, welding clamp and an electromagnetic relay that connects the welding source to the grid by closing the electrical circuit, that is, by touching the welded mass electrode, and for disconnecting the source from the network welding, the auxiliary DC source is introduced into the circuit formed by said relay, a second time relay with a time delay and a much higher resistance than the first one and a normally open contact of the contactor, the time relay, if not is welded, will connect from the welding source network after a certain set time, and if it is welded, the relay coil will be emitted by three diodes is connected in parallel and parallel to a part of the three-phase bridge of the welding source, in which case the relay will act with the resistance of the smaller coil, maintaining the welding source to the network.

RO107424A 1982-05-04 1982-05-04 Idling automatic limiter for welding rectifiers RO84121B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
RO107424A RO84121B1 (en) 1982-05-04 1982-05-04 Idling automatic limiter for welding rectifiers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO107424A RO84121B1 (en) 1982-05-04 1982-05-04 Idling automatic limiter for welding rectifiers

Publications (2)

Publication Number Publication Date
RO84121A2 RO84121A2 (en) 1984-05-12
RO84121B1 true RO84121B1 (en) 1984-06-30

Family

ID=20111474

Family Applications (1)

Application Number Title Priority Date Filing Date
RO107424A RO84121B1 (en) 1982-05-04 1982-05-04 Idling automatic limiter for welding rectifiers

Country Status (1)

Country Link
RO (1) RO84121B1 (en)

Also Published As

Publication number Publication date
RO84121A2 (en) 1984-05-12

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