Duvha Power Station - Turbine Smash !

Duhva Power Station turbine smash.

Sweeping the bullshit as well as the taxpayer’s money under the carpet!!

Not really intended for the public, BUT, amazing how pics like these can get out even after Eskom put a blanket of secrecy around the whole incident.

Eskom likes hiding stuff like this?

So I found out what happened at Duhva power station and the busted turbine.

They were doing a test of the turbine overspeed protection system, and in short, the protection did not kick in. Conventional wisdom tells me that there should be a better way to test a protection system than to try and destroy the turbine and see if it feels like protecting itself, but that’s basically what they did.

The turbine has a governor valve which controls the amount of steam coming into the turbine In order to keep it running at the right speed (3000 rpm for our grid frequency) and then it has a main isolation valve to shut the steam off completely.

The protections systems (of which there are 3 independent systems, and a dude with his finger on the emergency button) are supposed to close this main isolation valve in a fraction of a second when the turbine overspeeds.

So they get ready for the test, they dump a helluva lot of steam onto the turbine, speed starts going crazy, it went from 3000 RPM to 4500 RMP in ten seconds (they are generally only designed for 10 to 15% overspeed, all three protection systems should have kicked in by the time you get to 110%).

Anyway, I don’t know why, but all three systems failed, and the dude with his finger on the manual trip button wasn’t at his post. So the result was a big bang, some fire and a lot of steam going where it shouldn’t go.

Scary thing is Duvha has a shared turbine hall. All six units are placed in one long straight stripe, with no missile shield between them. And if you look at the third pic you can see how big that shaft is, if that landed on another turbine it would have destroyed that too.

They are very lucky they didn’t lose the entire station.

So anyway, what gets reported in the news?

“Unforeseen maintenance” at one of the units at Duvha requires it to remain shut down for 18 months. understatement of the century in my book.

But you shut off the containment ventilation system at Koeberg for one hour and a radiation alarm goes off, then it’s a front page news national crisis.

I give up ! ! But this is ZumaLand !!

Is Eschom not a private company?

Satan visits Cape Town and meets Gatiep.
"Do you know who I am?"
"Nay", says Gatiep, "giemy a hint"
Satan says, "I am the prince of darkness"
"Fok" says Gatiep, "jhy's mos die CEO van Eskom"

chicken n chips wrote: Satan visits Cape Town and meets Gatiep.
"Do you know who I am?"
"Nay", says Gatiep, "giemy a hint"
Satan says, "I am the prince of darkness"
"Fok" says Gatiep, "jhy's mos die CEO van Eskom"

Chicken 'n Chips, You seem to be bright and breezy tonight.

Have you been out gallivanting with Johnny Walker ?

hahaha not at all les, don't touch that stuff

chicken n chips wrote: Satan visits Cape Town and meets Gatiep.
"Do you know who I am?"
"Nay", says Gatiep, "giemy a hint"
Satan says, "I am the prince of darkness"
"Fok" says Gatiep, "jhy's mos die CEO van Eskom"

@cnc...that one's been around from the last period of electricity disruptions we had...

chicken n chips wrote: hahaha not at all les, don't touch that stuff

As long as you enjoy yourself !

on a serious note les, I trust that there were no injuries when that blew ?

chicken n chips wrote: Satan visits Cape Town and meets Gatiep.
"Do you know who I am?"
"Nay", says Gatiep, "giemy a hint"
Satan says, "I am the prince of darkness"
"Fok" says Gatiep, "jhy's mos die CEO van Eskom"

Brilliant boss

Gee news seems to travel very slowly up Pretoria way!!!!!or did the exact same thing happen in 2011 as well??????????....... :ohmy:



Eskom hit hard by generator blow-out
Mar 21 2011 07:35 Jan de Lange


www.fin24.com/Companies/Industrial/Eskom...3bn-setback-20110321

chicken n chips wrote: on a serious note les, I trust that there were no injuries when that blew ?

Chicken 'n Chips, I really don't know !

Everything has been "hushed".

chicken n chips wrote: Satan visits Cape Town and meets Gatiep.
"Do you know who I am?"
"Nay", says Gatiep, "giemy a hint"
Satan says, "I am the prince of darkness"
"Fok" says Gatiep, "jhy's mos die CEO van Eskom"

Oh brilliant, now that is Cape Town funny