We have 2X850KW Hydel unit. Temperature of unit x-mer & Gen breaker's cradle terminals which are connected with busbar is showing 90 degree C at 842KW in one Unit.
Current measured are R=1378A,Y-1406A B-1296A . 0.4KV bkrs are rated -2500A
Power cable size -800Sqmm . There is also installed a Capacitor Bank . which is 225Mf for each phase . Other unit is running normal without capacitor bank. What is the reason of such this high temperature?