What are the three types of compensators?
What OPGW is better than Microwave or PLCC???
MCB is used for high rating &MCB is used for lower rating.What is technical difference between ACB & MCB?
Iwould like to know barc interview questions
Which ciass CT can be use in diff. protection. Can be use 5p20?
explain the meaning of harmonic resonance
How does frequency affect KVA rating of a transformer? If a 500 kva, 400 v, 60 hz t/f is to be operated on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same Also explain why do u think like that.
What is the difference between Welding Transformer and Normal Transformer?.
Sir we have 12.5 MVA(110/11KV) transformer (Y-Y) connected,which tripped showing earth fault,when we charged transformer it stood OK ,but on connecting 11 KV feeders it tripped showing earth fault.our service engineers found that the B phase and R phase phase connecting to neutral broken from HV OLTC(on load tap changer),and R phase and Neutral is ok.Dissolved gas analysis shows that accetline content is high,tan delta value is 12.My dout is it is an internal fault of transformer,why REF or diffrential relay is not acted?
sir, i'm preparing for hpcl exam officer trainee pls tell me how the exam ques paper pls pls
what is the function of Moulded case circuit breaker, why it is called Moulded?
what is the value of current and voltage that our body can resist ?
What is a captive power plant?