@@bharatram4971Generally what I am like explain is breaker is different and isolator is different, isolator is located in HT yard after DO fuse to isolates transformer from HT input voltage incase of any breakdown.and you are explaining is ACB means Air circuit breaker.which is used in LT side after Transformer .
Not true Isolator is used in HT side in HT yard.
Ok install in ht room but Your answer is Rong isolator used after TRF secondary so isolator is LT breaker
@@bharatram4971Generally what I am like explain is breaker is different and isolator is different, isolator is located in HT yard after DO fuse to isolates transformer from HT input voltage incase of any breakdown.and you are explaining is ACB means Air circuit breaker.which is used in LT side after Transformer .