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What would be the ratio of a Delta-Wye tranformer having 48000 volts phase to phase on the primary and 4160 volts phase to phase on the secondary?
5 7753Where I can get the sample question for post of Junior engineer electrical-II For RRB Bhubaneswar.
2175I have applied the post Junior Engineer-iii(c&w)in R.R.B chennaI recently . can i get any model question paper LAST 4 YEARS?
2 8922Why different types of connection in transformers are used? (star/star,star/delta,delta/star,delta/delta)Why we are only taking in consideration of star/delta type transformers? if only star/delta is good in practice where doses other type of transformers are used? Note: i want to know place of using different types of transformers other than Star/delta type with brief description.
1 7912how can we represne the analog signal and digital signal if want to measure the speed and we have to use PLC
2 5143how would you come to know if a transformer is double wound or auto? note that there is no tag. you are given only a multimeter.
5 17566Post New Electrical Engineering Questions
how to calculate cooling requirement of datacentre from electrical load?
what is the power rating of CPU, CRT type moniter, LCD type moniter,scanner Approx.
what is meant by loss of field in a DC motor? how a universal motor works?
use of choke in APFC panels
It is desired to flood light the front of a building 42 meters wide and 16 meters hig.Projectors of 30 degree beam spread and 1000 watt lamps giving 20 lumen/watt are availabl.If the desired level of illumination is 75 lumen/m and show a suitable scheme.Assume the cofficient of utilization, deprecitation factor and waste light factor are 0.4, 13 and 1.2 respectively.
what's the difference between abs/inc encoders. apart from the position remembrance what are all the other differences. and what's mean by grey code.
how to copy from plc ge fanuc versamax series,all input and output, adress, and printout.
Why different Pressure switch used in marine boiler water circulation system
This is reqd for a 1MW Solar power plant..We have 2DC outputs from the solar panels Connected to 2INVERTOR panels.. Output from invertor is 3ph,280v,500kva,50hz.These are connected to individual ACB.This has to be stepped up to 11KV ,1250KVA SYSTEM.Now can I use (1) one more ACBTO GIVE A COMBINED OUTPUT OF 1000KVA,280V & STEP UP THE OUTPUT BY USING a single two winding 3 ph transformer 11kv/1250kva. or (2)use the two outputs and connect to one three winding transformer of above rating..Pls suggestwith details.
how to set the time in digital timer ?
If there are two transformer having rating of 2.5mva, 6.6kv/440v(satr-star),and the load is 600kw then what is better to maintain less losses in transformer having both transformer in parellel or only single transformer connected to load? Please give calculated answer
How we can calculate the consumption in kwh of motor on basis of kw @100% load, @50% load & @ no load.
Is it required to do earthing in 2nd shop if earthed armoured cable is laid from 1st shop ?
What is current & voltage ? Voltage perform at any load without current or not?
how can calculation ate Amps for cabel. Ex-for 1sqmm wire hou many amps we can draw
