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While elctrical load on DG,capacitor banks kept off why so? If capacitor banks on is their any effect DG?
4 12972why do we use 3 single phase instead of one 3 phase?? though vee connection is its advantage but what is the hidden reason behind it??
2 4795We have 420volts, Diesel gen-sets each 750kva 4nos. we are operating with bus bar duct having 10x150mm for each face 4nos. our question is what is the minimum gap required between each face? is there any satutory regulations?
1 3436how we have to calculate the short circuit current for 33/11kv 2mva, 7.5% Z, Transformer primary side breaker and secondary side breaker short circuit current for both sides?.
5 15755what is the advantages of Lighting transformer?.. is it possible to reduce the power consumption ?.
6 31462What is the difference between XLPE & FRLS cables? Is FRLS cables is a type of XLPE cable or both r different?
5 95028Why it need to form a capcitor when it not been in use from three or two year. Plz describe it technically.
1899Post New Electrical Engineering Questions
How can calculate the earthing strip of Copper/GI for rating of 30kV,discharge current 10KA Lightning arrester.
Is vtg is controlled by the resistor? if else how much?
what are the analog quality input for protection function?what are minimum reqiments?
why i can not use thimble on capacitor duty contactor
75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?
how the speed of the gets motor regulated. does it draw the same current on the all speed level.
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.
what is the main difference between power devices and signal devices
In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?
i am going to correct power factor of 1600kw induction motor,when i calculate capacitance of capacitor it is three time more in star connection than delta. if motor is star connected which connection i shall adopt for capacitors and reason for adopt this connection
Pls Breifly explain about UPS (Inverter,Reserve,Rectifier,Float voltage,Boost voltage).
How to calculate or formula to calculate rhe power in 2 phase system ??
how brushed dc motor operating ?
How to calculate size of HT breaker with the help of Amp (current)? Please provide answers with examples.
Please give me a erda placement paper
