Interested to Buy Any Domain ? << Click Here >> for more details...
Answer Posted / s.panneer selvam
In Dy11 secondary leads primary by 90 degree means in case of any fault the secondary protection which is sensitive than primary will always senses the fault before and enable to trip. the reason behind is to enable protection not to allow more current to flow through the circuit in the event of fault or abnormality. star point needed for neutral and we use have single phase load are of secondary reason and i think the primary reason may be this which i read from MG say book
| Is This Answer Correct ? | 1 Yes | 8 No |
Post New Answer View All Answers
cc of scorpio?
In radial network the source is fed from 1 end both ends at central
how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.
what is the criteria for selection of conductor used for ehv ac electrical dischrge
Why neutral point is consider as zero potential?
What is difference between slip rings and carbon burushes?
How to know vacuum in vacuum cylinder of breaker in working condition
what is meaning of 230volts ac 50hzs ac supply is it rms or maximum to getting ac 230v what amount of max voltage they will send
how to test the turn ratio of 3 phase transformer using volt meter shoe the curcit diagram.
what are the accessories need to be added while doing estimation for the following: 1.MCCB 2.MCB 3.ACB
How does the slip regulator works as a startor
how to calculate the loss tangent of electrical cables
What is meant by a stray loss of a induction motor??? What is the equation to find it
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
Instrument connected to a single phase supply
