why we define potections of Tourbo generator in Class A & B.
It is just the Client /owner/consultant choice.
As there are many protections in turbo alternater grouping
them in class A and B category indicate the severity of
faults and guess the extent of damages.
Class -A category need special attention and to be analized
cautiously.Ex- Generator differential means there is serous
trouble to identify the cause. Generator winding
damages,flash over..., It needs generator inspection and
tests. If it is ok then proceeds to Operations.
Where as Class -B an overload, overcurrent,under voltage...
secondary importance.Operational proceedure can be
followed.No need to trip units.However ,occurance of classB
protections also trips the turbo-alternator with time delay.
Is This Answer Correct ? | 0 Yes | 0 No |
I have seen 1 video in which a person getting shock while standing at top of a train,i have 1 question? why the people sitting in the train doesn't get shock while that man getting shock from top of the train? How the earthing of train works?
Please tell me what is the difference between online UPS & OFF line UPS?
how to calculate the no load current in transformer?
What is the formula for calculating no-load current?
how we identify AC or DC machine at the time of seeing, with out use of name plate?
while doing high potential for 11KV 3 core cable how much leakage current will obtain?, what will be acceptance value?
advantage of cu cable over al cable
at high temperature conductivity increases for conductor what will happen for long transmission when temperature is high?
Define phase lag and phase lead?
What will happen if the field of synchronous generator is removed when it is in operation with no load?
What is steady state response?
What is domestic transformer? Draw the connection of domestic transformer.