AC (50~60 Hz) current distribution may not be uniform across the cross section of the conductor..... skin effect.... this can be verified by Finite Element Analysis of the current distribution. In the above case its quite possible that the holes may be located such that it doesn't greatly effect...
If you got to the stage of the phone interview, it means you have 90% of the job.... now it depends on your presentaion and communication skills to make it 100%. Normally in phone interviews the employer wants to know your technical background and also get to know about you. Show interest in the...
Here is a link that I found thru a web search:
http://grouper.ieee.org/groups/transformers/subcommittees/power/C57.143-EPRIDCXIII-ESKOMpresentation.pdf
It states in one of the case studies that the rate of rise for Methane and Ethylene is 2PPM / day.
But the over all message is TO REMOVE THE...
Th epole to pole connections are subjected to centrifugal forces during unit operation. Normally the rotor would expand up to 300 thou due to this centrifugal forces. It is therefore important that the pole to pole connections have enough flexibility to avoid any undue stresses which may end up...
I have a 5 years old car and I find that some of the parts like door hinges and bolts etc are starting to get rusted.... is there a product available that would clean and protect these parts?
Sarg
rmw.
In our case the contractor wants to provide a name plate with a higher rating 30MVA where as we are asking for 24 MVA. because this is what the generator can generate with the max available head and the present turbine. The thing is that we go with a higher rating we'll have to get into...
We have a recent generator rewind and upgrade. Runner was also refurbished. We asked the contractor/supplier to provide a name plate that would show exactly the power the generator would generate when coupled to the existing generator which is less than what the generator is actually designed...
From the info given above ... the CTs could be the cause. I would check for loose connectiones on the CT wiring and also check the insulation & turn ratio of the CTs
Sarg
From the info given above ... the CTs could be the cause. I would check for loose connectiones on the CT wiring and also check the insulation & turn ration of the CTs
Sarg
As Scotty indicated your best bet would be to use a Battery Ground Fault Locator. I have personally used it to locate ground faults in hydro power plants. I would say it's a great piece of equipment.... allowing you to trace ground faults without having to shut the unit down. In fact without the...
Hello sumeng05
Yes one of the facilities I used to work in had Ca and YES we had problems with buckling and expansion of the plates within the first year. The expansion of the plates was so severe that it was popping open the top coves of the containers. We did register an increase in the...
Just to add to the list of precautions ... personally I would feel comfortable in energizing the transformer, after each tap changer operation, only if the transformer turn ratio is checked. Perhaps checking the contunity of winding won't hurt either.
Sarg
In old stator cores one should look for any deformations, localized heating, damage due to shorted winding, fretting corrosion etc. Core loop test is a good way of knowing if there are any hot spots. Normally minor hot spots can be treated by weeping epoxy. However bigger hot spots with...
KH2
I know only one manufacturer (sorry cannot disclose its name) who's generators employ the series connectors you have explained above (may be there are more but at least in my limited experience I have come across only one). I am sorry I don't have all the technical details but apparently...
