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Dear omega
A 3000kva may have high cost as compare tow same rated value transformers.
@omega3 said:I am handling a project with a site footprint of 100mx30m. The estimate electrical load is 2610kVA which are basically building E&M loads at 415V. We are tapping our supply from a 33kV network with a fault level of 25kA. My electrical designer proposes two 1500 or 2000kVA 33kV/415V transformers. I am wondering if we can go for one 3000kVA transformer instead to save space and cost.
Can somebody give me some suggestion.
Thanks
omega3Dear Billy !
I am studen of electrical engineering of final year , and want you to inform all about electrical engineering which i know. so please tell me your online time on the recent FUROM to chate each other.
Horst Droege said:
There are many valid and good comments here. CFL's in Asia, there is no disposal for it and most ending up in local landfills. And CFL's and tubes are widely spread here. Said to see. And i researched on mercury, amazing how many people in China died because of poor manufactoring process and handling.
LED's have done a tremendous progress in the last two years. A CFL and tube has about 50-60 lumen/Watt. LED in these days already at around 100 lumen/Watt. LED's from my manufactorer come with 2 years warranty (you wont have any warranty on Halogen, CFL or incandescent). They save about 40-90% on electricity and about 6 times replacement (lights plus labour) compared to CFL and tubes. And yes, they are more expensive, but putting in above benefits into dollars, the LED will usually have a return of investment within 1-2 years. For Halgen and incandescent its usually below 1 year. I havent found any stock how gives this return !!! Surely they will get cheaper over time, but how long do we want to wait ? I could have still waited on my to computer to get cheaper, I would be sitting and waiting for the last 20 years. Everytime is the right time. So we should make a start now.
Cheers Horst
Me agree with your point of view.
Marina.li said:
we are supplier of fluorescent ballast, just everyone saied that LED is good, but the price is high, so many people can not afforad. so now days the fluorescent ballast is the best chioce for poor people.
expinsivness will takeplace a passage of time ,after that LEDs are the best.
