Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations cowski on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by rajapon

  1. rajapon

    Capacitor bank requirement

    Dear ScottyUK the following are the details i have in the drawing Rated output =5MVAR No.Of Stages =5 Stepsize =1 Rated voltage =11500V Insulation level =28KVrms Each capcitor stage contains the following Air cor damping reactor 250uH,53A 6 no's 201.7KVAR,7303volt...
  2. rajapon

    11KV busbar short circuit rating and parallel operation of transformer

    Hi Guys Ratings 11KV Busbar Rating=25KA for 3 sec Operating voltage of the bus bar =11KV Rated voltage of bus bar=12KV Rated normal current of bus bar=2500 Power transformer rating =20MVA,33/11KV In my S/S three transformers ,so in the 11KV incomer-3 & bus section-2 (5 breaker system)...
  3. rajapon

    Capacitor bank requirement

    Hi Guys I need your attention on the drawing which i sent u in the above attachment Incomer-1 ,Incomer-2 & Incomer-3 R phase CT they connected to the capacitor bank-1 Auto Power Factor Controller through auxiliary contact multiplication with the condition of Bus section & incomer combination...
  4. rajapon

    Capacitor bank requirement

    Thank you guys for your reply.........here i will attach some of the drawings Capacitor bank Auto Power Factor Controller CT input selection 1) Capacitor bank-1 a) If I/C-1 CB closed R-phase of the CT will come to summation CT of APFC b) If I/C-1,B/S-1 & I/C-2 closed R-phase of I/C-1 &...
  5. rajapon

    Transformer operating in parallel with different percentage impedance

    Hi Guys , 3*20MVA S/S Transformer 1&2 have the same percentage impedance Transformer 3 have the different percentage impedance My question can we make parallel opearation of transformer 2&3? Thansk & Regards Raja.P
  6. rajapon

    Capacitor bank requirement

    Hi everyone, I am Raja, i have some technical doubts ,i am working in 33/11 KV substation with 3 20 MVA(33/11.5KV) transformer 1) 11KV SWG SEC-A,SEC-B & SEC-C (three incomer & 2 Bus section scheme) 2) 5 MVAR capacitor bank for each 11KV SWG( SEC-A,SEC-B & SEC-C) My doubt when incomer-1 in...

Part and Inventory Search