05-08-2017 11:20 PM
Thanks for your advise. I will inform as next
1) CT ratio : 3 Gen set are same ( 1200: 1 A ) , Gen cap is 344 KVA , 523 A
2) All parallel operation have same problems.
3) & 4)
. KVAR & cos indication is correctly. ( 100% KVAR may be PF 0.5 )
. Test operation by same load for single & parallel operation ( Abt 140 KWE ) ---- Single ( KVAR 8 %, )
Parallel operation ( KVAR hunt -44 ~ 130 % , Actual currernt same )
. Cable & wire checking result. ---- Each CT line was separated connected at AVR ( 5,6 ) ,
This should be consideration. How about your opinion?
. AVR adjustment
- We installed new AVR & Diodes .
05-08-2017 04:26 PM
04-22-2017 12:09 PM
We used Power plant ( 3 sets 3406 C , Gen L6B05266 - 60Hz , 4 Wire 380 V, 344 KVA , AVR VR 6, C/T 1200:1 A)
During Parallel operation generator have too much cross current. So can not operation with parallel
Kvar is change -44~ 144 % in short time. What is wrong? How we can solve this problems.?
Please give us your advise asap by E-mail