https://www.bloomberg.com/news/articles/2021-08-10/explosion-at-utility-may-push-south-africa-blackouts-to-record
reports are this happen during the purge process
replace the hydrogen with carbon dioxide
replace the carbon dioxide with air
Just wondering if any one heard of this and had some details on how it happen and the extent of damages
https://dominicantoday.com/dr/economy/2018/09/17/energy-crisis-takes-dominican-republic-to-a-dark-december-december/
Back in September a 300 MW power plant in Dominica wrecked. I learned...
Retaining Snap Rings For Slotted Nut
Is this a standard Snap Ring or something special for the application?
links to available requested.
http://files.engineering.com/getfile.aspx?folder=cd624f85-4d4f-431f-837c-e6114fd997c3&file=BRAKE_CLIP.JPG
I have very little experaince with metric. I have a drawing that gives a clearance of
0.56 +8'
what does the ' mean? I am thinking
0.56 -0 / +0.08
would that be correct?
Mitsubishi 150# servomotor The GVSM has a check valve that relieves between the chambers on either side of the piston. What is it for? I was told this design is similiar to WH
I have a friend, who knows a friend that is having lube oil trouble starting an older Allis Chalmers unit following an outage. Apparently they have lost all books and no one has ever seen it run before.
The unit is a 1940s era, approximately 10 MWs. The first question would be; what are the...
I am thinking about how to improve the realibilty of a lube oil system during a system failure of loss of one pump and the autostart of the back up pump. the system has 2, dual output pumps, of 200/60psi. the system flow rates are about 10/100 gpm. testing, the time from running pump stop to...
I have seen where a wire is bent through the orifice hole. Besides allowing to make a "smaller orifice" while using a larger drill bit, I was wondering does the wire provide any "cleaning" capibility? Also any link to this design would be appreciated (I have not had any luck finding with google)
back in 1995, an Utility published an article where they started their 500MW turbine by opening turbine valves, then began boiler firing. the intent was to ramp boiler and turbine temperture together and let the turbine slow roll as boiling began.
Does anyone have any experiance with this...
I'm trying to determine the ratio for an aux CT used to convert the 5A rated current from the main generator CTs for use with a control circuit. The manufacture of the equipment in which it is used has not been able to identify.
the numbers on the transformer are 8600K 4904. I'm thinking...
I was never that good at Kirchhoff and today I am drawing a blank. could I get some suggestions on how to solve for the voltage at the "?" (remeber your explainations are for a ME)
the circuit to the left is a simple voltage divider that sets an opening limit voltage. Where the one on the...
I recieved a drawing that was suppose to have been a TIF, however it has the exentsion .SMF
I do not have any CAD programs, just ADOBE, Windows picture/fax viewer and PAINT. None of this will open it, nor any of the viewers I have tried today. Any ideal what I need to convert this into...
My google results are not helping me to much on my quest.
I have seen in OEM (Parker) lititure about using an ultrasonic transducer to measure piston position, however I caan not find a make/brand for such a device.
My desire is to measure the piston position over the accumluator's bore for one...
I am only familiar with only one OEM and the nomenclature they used to discribe things (pre digital also). I have an interesting discription that is currently being used by another company. the control function performed by the digital processor that I would call the "speed load governor" is...
I'm reviewing a "contract" where I will be a subcontrator, to this company, with the company having a contact with the customer.
there are several items that reffer to conditions of the master contract with company/customer would apply to the sub, but those conditions are not detailed in my...
After hearing about the accident at Eskom’s Duvha power station, there were other related articles (from googling) that seem to imply a load rejection test was something performed routinely (annually?).
Distinguishing between an actual over speed trip test, where the turbine speed is brought...
a turbine's lube oil feed to its bearings has an "emergency DC oil pump". The urgency in its use requires a starter that is failsafe, relaible and can achieve maximun acceleration with out damaging motor and battery bank. the batterys are nominally 125 or 250VDC and the size is around 50 HP...
background;
I recieved a call from a customer asking if I could perform same work I did for them when I was an employee of another company a few years back. (I am now a single person corperation).
I really liked the though I was asked and forwarded them rate sheet, however, I was informed a...
