×
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

varistor calculations for generator

varistor calculations for generator

varistor calculations for generator

(OP)
I got a generator and on rotor there a diode bridge and varistor, this one is broken or burnst is better word, so the genset is old.....and no information only this data
Voltage on excitation: 127 V dc Current on excitation 113 A
speed 750 rpm power 2175 KVA
frequency 50 hz resistance on rotor 0,858 ohms
does somebody show me how to calculate with this data??? or some rule of thumb for calculation....

thanks a lot

RE: varistor calculations for generator

(OP)
does somebody help me????

RE: varistor calculations for generator

Perhaps it would help if you told us what you want to calculate? It wasn't clear to me at least, so I don't know where to start.

RE: varistor calculations for generator

(OP)
je,je i need toknow the data for a new varistor.. cause really i don´t know hot to calculate the energy to disipate for varistor.....thanks

RE: varistor calculations for generator

Sorry uhpo, I'm out of my depth. Probably best to ask the manufacturer. There are certain trade-offs to be made in selecting a varistor and the energy they need to dissipate is dependant on the behaviour of the diodes as well as the characteristics of the generator. Hopefully someone else can chime in.

RE: varistor calculations for generator

(OP)
thanks in any case..i hope somebody see the post and maybe some help will come, cause i know here are really experts.

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