Transmission line design. Say, I have a 1MVA generator and 2 transformers that will have the same load. What would be the proper rating of the trasformers? Is it safe to say, that I will simply divide the total rating of the generator?
1 3747srij i need the relationship b/w KW AND KWH and with an electrical example. plz send if u can?
4 6179When charging a 20 MVA , 33kV/6.6kV transformer through regulated (0-6.6 kV or 0-33 kV) source on no load , what will be the maximum current drawn by transformer from source and what sould be the source capacity.
TATA,
5 11535I am working on a 11KV system with fault current of 40KA for 1 second. I have selected 2500MVA 11/0.433KV transformer. How can i find the impedance value for this transformer? Please help me.
PPL,
2 6788what is the difference between high impedance REF & REF, same high impedance differential protection & differential protection for Power transformer?
1 9521to improve the existing power factor whether capacitors have to be added in series or parallel.and why
3 6799In a company has been installed an analog amperemeter, this company was suplied by generator X, there is no problem in the ampere meter, rigth now this company's supplied by generator Y then the pointer in amperemeter vibrating. What happened? Why? Thank's
2 4322Post New Electrical Engineering Questions
what is the affect of earth's magnetic field on the frequency used in aircraft???
What are the advantages and disadvantages of open loop control system?
Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me
what is laser diodes?
how to calculate percentage impedence at 75 deg C at normal tap
my b-tech percentage is 50%. what answer will satisfy the hr ?
what is the difference between online & offline caliberation of KWH meters. Can Digital meters be caliberated
What is an iron loss or core loss pi?
What is the formulae of Megger value for a A.C.Motor
plz send me Bhel, Mahagenco, sbi previous exam paper for electrical engineer on my email-id kambali_smita@yahoo.co.in
Why wind turbines wheels rotate constantly
We have drive feeding an output contactor for a 5000 hp motor @ 5kV application. The motor FLA is 629amps x 1.25% service factor = 786.25 amps The cable that we current have in place between the drive and the output contactor is 350kcmil- MV-105 (parallel cables). Per the NEC table 310.60 (C) (69). This show the cable ampacity is at 615 amps per cable for a rating of 1230 amps. We have derated the cable for the cable tray and the multiple cables application and our calculations show that after the correction factor factor we are at 922amps. 1230 amps x .75% correction factor factor = 922.5 amps. The customer is driving us to then use another safety factor of .25% off of the already derated cable. Can you please provide a longhand calculation for your solution on this application?
we have 3.5MVA-11/6KV transformer. how can we calculate earth fault current and NGR calculation?
What is the effect of solar radiation on the design of an Isolated Phase Busduct?
What are the types of excitation system?