What is mean by ideal infinite bus? Why it is required to consider in fault short circuit calculations?
1 4608What is Energy based relay coordination & time based relay co-ordination? In which type of distribution arrangement these methods are applicable?
1 3168What is the voltage violating limit to be considered for load flow study? What is acceptable deviation limit according to relevant standards?
1 3168Why tripping not occur when the transmission lines (11KV & above) breaks? Doesn't we provide earthfault protection for it?
1 4474Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?
9 18543How can we calculate ngr resistance for a generator and Transformer ? What type of transformer requires ngr ?
5 41380Post New Electrical Engineering Questions
advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor
why zero sequence impedance measurement is not applicable for single phase GT
I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.
Is there any guideline say about display of earthing value near to earth pit
can anyone show me how the 3 phase power is supplied to socket outlets?
why connecting surge unit in contactor coil
I have an existing old MCCB. ABB Model SACE, the rating are: Ue = 660 volts, Iu =1250 Amps, 3 poles, Ith (max) =800 amps at 45 deg C. I need a circuit breaker for my 3 phase motors, 380 volts 60 hz. the supplier required the minimum ampacity of the breaker to be 911 amps. can i use this breaker with rating of Iu =1250 amps but Ith = 800amps maximum?
what are the assumptions made in swineburne's test?
What are merits & De-merits of State-Space Method? What is series programming, parallel programming, general programming & direct programming ? And, difference between these programmings Techniques ?
how is find out kwh step by step
what is the chiller and working principal
How to calculate the Efficiency of Chiller
how to size H.T & L.T Panel ?
Draw a SLD of DG distribution up to main LT panel?
can i connect REF and Differencial relay in 1 CT core for transformer protection?
