×
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

alternators in parallel

alternators in parallel

alternators in parallel

(OP)
Does anyone know of an aircraft that has two or more ac generators (alternators) that are operated in parallel?
That is, as opposed to each alternator feeding it's respective bus and then tying the busses together when one alternator fails.
Military or commerical, fixed wing or rotary wing.
Also, has it been tried in the past and been dropped because of problems?  

RE: alternators in parallel

The B727,747 (early series), DC-10, and L1011 are some types that used parallel generators. Split buses are used in B757, B767, B737 and DC-9. The B747-400 uses a split parallel system which allows all in parallel, or it can be split as two seperate halves, or systems.

RE: alternators in parallel

(OP)
Aviat- thanks for the information.
I'm trying to find out if there is a weight/reliability
benefit with either method and if someone has done a study and published a paper.
I don't want to reinvent the wheel.

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