what should be the minimum MVA rating of generator transformer. generator out put 18 MW,11kv & national grid of 33 kv.

I generally do not get all that excited about new alternative energy announcements, but this shows some real promise:

http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2010/02/24/MNIO1C6M96.DTL

The company web site is http://www.bloomenergy.com/products/

Worth looking at...

This is not

I searched CR4 and only found a couple of older links for "Fluorescent Dimmer" and "Custom Fluorescent Ballasts".

What is the current state of technology for dimmable fluorescent ballasts for 4' and 8' T8 lamps?

How much is the lamp life shortened by the use of a dimmable ballast? In my ap

I'm sorry if I cross posted this but I cannot find the original posting.

I am looking for a US standard that dictates the wire sizing leaving a fuse block (ie NEC, NFPA, IEEE, UL). The question is; is the wire sized for the maximum capacity of the fuse block or the fuses installed.

For ex

I vaguely have an idea to extract energy from rainwater and convert it to electrical. can anyone suggest some application of this particular concept. like where it can be actually used in rainy areas

I am planning on storing printed circuit boards for a customer. What are the requirements concerning temperature and humidity? Are there other requirements to consider beyond the two in question? Thanks for your help.

Hi all,

We have 4, 11 kv Auto reclosers installed for a 33/11 Kv ss.The AR(Auto recloser) have 3 sectionalisers each(Loads break switch) down the line in series.Each being supposed to trip when its alloted trip/fault sense count is exceeded,for example the the nearest SECT(sectionaliser). havi

Torque measurement formula in stepper motor

hi, I wonder what is the difference between dc and ac contactors? in fact i dont know if there is different products as such ?

What i know is just dc current breaking is more difficult...

hey guys whats the real purpose of the neutral conductor on 220v and 110v supplies.

We normally use 1.5 sq mm copper cable for wiring a bulb of 60 W in residential buildings.Now with CFL being used can we also do wiring by smaller size (area)cable?
Is there any wiring standards on CFL wiring?

Does NEC comment on it?

Anil Sarda

How to calculate Ith (I thermal) for curent transformer ?

Load cell is sized at 200kg rated capacity with 2.00mV/V output, what does the output mean per kilo?

We are using 4 load cells in paralell on a weigh conveyor system so output is divided by 4, ie 0.5mV/V. Conveyor weighs 550kg. Range of weight on conveyor is 0.2 to 20kg. Cannot read outputs

From BBC News ...

how does the acsr conductors are classified

According to news reports the Hummer is going out of production.

Is this a good thing or a bad thing?

We use Microsoft Outlook 2003 SP3 for e-mail & on my PC it is doing something strange in the calendar.

We have a company calendar in Outlook which we use to record meetings, visitors & other items. Anyone can add an event by double clicking in the calendar, if I do this then by defa

Dear all

i want to ask on thing that if any one put a load on the input cable of a energy meter ,is it increase the KWH of meter or will it be a case of electricity theft

Is there any formula to calculate the machine tonnage for injection molding process as I only have the product area.

how are the resistance and reactance of transmission line acsr conductors are calculated?