Hi Guys,
I came across this situation while looking at some fault level data.
Why are fault levels higher on LV side of higher rating transformer despite having higher Z%?
If we have a 100kVA 11/0.415kV Z=4% & 1000kVA 11/0.415kV Z=6% transformer. according to theory and formulas we have the...
Thanks Waross.
Argotier,
In that attachment the neutral current is shown in pink color, it is low (2A).
I have now attached another attachment from second logger. The neutral current is about 22A and sum of 3rd harmonics of each phase gives about 23A in Neutral...
Hi All,
I have got this situation, we have put 2 PQ loggers on 240/415V distribution feeders. I am analysing the data from the loggers.
Looking at data, it is very apparent there is unbalance in system. Also these 2 feeders has got a lot of PVs connected to them (70% customers have PVs).
What...
Hi
Thanks to all of you for your informative replies. Makes much more sense than before.
Ed stainless, no cooking in that enclosure. it used as an enclosure for high voltage switchgear.
Regards,
Manny
Hi,
Could anyone please explain what is this material accumulated under the roof of this aluminium kiosk?
I know it is because of the condensation issue but what is that white substance? is it the corrosion of protective layer of aluminium? or something else?
Thanks
Hi Argotier,
Thanks for your reply. What i grasped from your answer is that the scott Tx connection is for 3 phase primary side connection and then 2 phase on secondary, correct me if i am wrong?
With the configuration we have here is, 2 phase connection, the transformer at railway...
Hi All,
My question arose when i had a look on switchyard of railway network. The railway network in WA (Western Australia) works at 25kV AC, the railway network is given 2 phase connection at 132kV level. My question is how is the 3rd phase balanced, since the rail draws significant load when...
