Very good description with clear examples ! I am sure it is helpful for our young commissioning engineers & technicians ! Thank you so much Sir for your efforts to educate the young engineers .
Sir , I am 1977 batch Electrical Engineer from ,OSE Odisa & 1984 bach MEember of Institute of Electronics & Telecom engineers ,India, Passed H.T . Licence examination from ELBO Govt of Odisha ! Started my Job carrier at Calcutta ,Associated Engineers ,Then Para deep Phosphate Ltd ,Govt of India ,ICCL110 MW Power plant as Manager Electrical , 48 MVA,24MVA,12MVA Ferro Alloys Furnace Plant Electrical Instrumentation dept head of IMFA Ltd , Sr. Managrer Electrical Projects of Balasore Alloys Ltd , Sr. Manager Project of Adroit Engineering Co P ltd , Retired since 20 12 & Doing now Special Transformer Installation ,Testing commissioning jobs ! @@electricaltechnologyandind5335
Bus bar differential relay will operate faster than oc relay, also if bb diff operates you can be endured that the fault has occurred inside the bus bar zone.... Which basically selectively as @Naren Chauhan mentioned
Hindi is not my mother tongue, and do not tech English grammar. So i hope you will be kind enough to ignore my grammatical mistakes and focus on the technical theory... ☺