×
INTELLIGENT WORK FORUMS
FOR ENGINEERING PROFESSIONALS

Log In

Come Join Us!

Are you an
Engineering professional?
Join Eng-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!
  • Students Click Here

*Eng-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Jobs

Bushings soldering

Bushings soldering

Bushings soldering

(OP)
Hallo

I´m drawing a Bushing for a Capacitor´s Bank .
Normally these bushing are soldered on the case of the aparatus : what kinds of soldering metals are in use ?

Are there problems with procelain , due to the high temperature ?

Tanks

Daniele

RE: Bushings soldering

I think its not difficult problem procelain is accepted, you can use it in such cases.
Regards,

RE: Bushings soldering

(OP)

Hi

Thank you for the answer .

I would know what kind of soldering metals are in use , to take a decision for a possible alternative with polymeric insulation .

How high is the melting point of these kinds of soldering mixtures ?

Tank you a lot

RE: Bushings soldering

Hi. Porcelain is fine for insulation. For a capacitor bank, depending on power and RC of your circuit (resulting in Joules per discharge cycle) and on the environment (cryogenic or room T) one can expect 400-900K rise for 16kA/100mm^2 SN60PB40 solder (melt - 180 C).I am not sure about linearity of its electrical properties, but my advice, in the case you expect T to be higher than 200 C - do not use tin-based solders, many Pb-, Bi-, Ag- etc adds do not improve it - melting is still below 220 C.

RE: Bushings soldering

Is this an 'electronics' type application or a capacitor bank for use out on the utility network? For an industrial application if 'soldered' connections were required at all then I would expect either brazed or silver soldered joints.
 

----------------------------------
  Sometimes I only open my mouth to swap feet...

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Eng-Tips Forums free from inappropriate posts.
The Eng-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Eng-Tips forums is a member-only feature.

Click Here to join Eng-Tips and talk with other members!


Resources