Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Help me fix the electronics of a tig arc welder

Status
Not open for further replies.

Milan-Sr

Newbie level 4
Joined
Oct 2, 2004
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Serbia
Activity points
80
I have a question!
I have to repair a TIG ARC WELDER,problem is that all electronics in it is totally damaged.
I wont to use phase cotrol with SIEMENS TCA785 on primary side off transformer.
If anyone hes any experience with thih plese leave here sugestions,it might help me.
Thanks Milan
 

jzaghal

Full Member level 2
Joined
Jul 31, 2001
Messages
130
Helped
1
Reputation
2
Reaction score
0
Trophy points
1,296
Activity points
953
how tca785 works

Hi,

It is easier to repair the unit.

Usually the hi voltage power section gets busted.

Explain the condition of the welder, maybe we can help.

Bye.
 

Milan-Sr

Newbie level 4
Joined
Oct 2, 2004
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Serbia
Activity points
80
tig and pulse-tig datasheet

Hi,
All electronic was destroyed,so I need some sheme that works.
Thanks,Milan
 

glenjoy

Banned
Joined
Jan 1, 2004
Messages
963
Helped
72
Reputation
146
Reaction score
20
Trophy points
1,298
Location
Philippines
Activity points
0
welder help

Milan-Sr said:
I have a question!
I have to repair a TIG ARC WELDER,problem is that all electronics in it is totally damaged.
I wont to use phase cotrol with SIEMENS TCA785 on primary side off transformer.
If anyone hes any experience with thih plese leave here sugestions,it might help me.
Thanks Milan

Do not post in all caps.
 

Milan-Sr

Newbie level 4
Joined
Oct 2, 2004
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Serbia
Activity points
80
serbian welder

Hi
Is this possibly?!
 

IanP

Advanced Member level 5
Joined
Oct 5, 2004
Messages
7,942
Helped
2,311
Reputation
4,624
Reaction score
531
Trophy points
1,393
Location
West Coast
Activity points
66,416
problems of arc welders

To control power SCRs it is better to use n:n pulse transformers, as per attached applications from the TCA785 data sheet; pages 15 and 16 ..
**broken link removed**
 

Milan-Sr

Newbie level 4
Joined
Oct 2, 2004
Messages
7
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,281
Location
Serbia
Activity points
80
application for tca785

Hi
I have not experience with pulse transformers. How to make those transformers?
Milan
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Top