Way to Save Energy Bill By Power Down STand-by Transformers

[Knobhead]

This gives a more of an idea of what we had to contend with. It wasn’t the easiest to get your head around.

Again the grid operators equipment is in red our equipment in blue.

The four 33KV main feeds and the two 11KV standby feeds were under the control of the grid operators with but we could lock them out. The grid operators had to isolate them if needs be.

Emergency generators shown in purple at 660V stepped up to 11KV. The generators operated in islanded mode so no synchronisation needed. Only three substations had generators.

E54:
You asked what company would put up with a distribution system that is far from ideal. I’ll ask you, how many companies would pay to totally rebuild that system?
We would need 30MW to keep some semblance of production going. To build a power plant of that size = £XX million. It just isn’t going to happen.

 

[Knobhead]

I’ve had to chop this about a bit but the main bits are here.

I’ll leave it to our friend to add the description.

 

[Engineer54]

Obviously a bit late now after the horse has bolted, like donkey's years ago!! lol!! But where they seemed to think that a standby generator was deemed necessary, then why not incorporate a black start system to cover just the 2 or maybe even 3 VCB'S necessary to accommodate a black start system.

Personally if it was only for the LV distribution system i would have thought the stand-by genny's would be better off being on final LV buses, that are not shown, but i don't know the system being used....

Besides it looks like you'd rarely if ever, loose the total supply on the system you posted above, especially if those 4 incomers were from separate supply sources....

 

[Engineer54]

I’ve had to chop this about a bit but the main bits are here.

I’ll leave it to our friend to add the description.

Gonna have to look at this single line a bit later on ....off to site now, ...yet another bloody meeting!! ..lol!!

 

[Engineer54]

Tony, Can you email the un chopped about layout so i make a bit more sense of the overall layout??

I'll also need wait for the OP systems description too....

 

[Knobhead]

Have fun. Just keep thinking of the bank balance.

 

[Engineer54]

Have fun. Just keep thinking of the bank balance.

Never been much good with cyptic clues?? lol!!

 

[Knobhead]

Tony, Can you email the un chopped about layout so i make a bit more sense of the overall layout??

I'll also need wait for the OP systems description too....

Sent

Now I’ve seen the system it doesn’t make a lot of sense to me either. But like many things, if you don’t know the history, you don’t know how the system evolved.

You once asked me about the systems I worked on saying they were badly designed, they weren’t designed they evolved over many years. Bits added, bits chopped out, it was never ending change. While ever it worked we had to make do with it.

That last drawing of mine, the generators must have moved house more times than me. Originally they were on a plant that was demolished many years ago.

 

[chlee-penang]

I’ve had to chop this about a bit but the main bits are here.

I’ll leave it to our friend to add the description.

Hi Tony,

Thanks for helping out to upload the single line diagram, instead of adding the description, I will probably asking permission from E54 for sending the native PDF file to him for review too.

The red node defines VCB in close position at this moment.

 

[shanky887614]

Hi Tony,

Thanks for helping out to upload the single line diagram, instead of adding the description, I will probably asking permission from E54 for sending the native PDF file to him for review too.

The red node defines VCB in close position at this moment.

could you upload to dropbox and post the link?