Ask the Utility that owns the lines. Depending on where you are building they may have an easement ect. also the answer for what ofset is required is in the NESC if you have acess to a copy of that assuming you are in North Ammerica
I think this discussion needs more context. I will admit I have taken a nap while at work. The context of the nap is important though. We have a plant that is miles from the nearest accommodations it takes about 45 Min's to get to the hotel. while working on the back shift (I had already...
We have hooked up a tester and have gotten the phasing of these motors. It really didn't take much turning to get the information we needed thanks for your help.
Ok so we have a final plan. We had a tester overnighted to us. We will try to turn the shaft by hand However because of the Bering configuration we are not sure we can get enough speed to actually get test data from that tester. So our second plan is to hook up a 300 KW 480 V Diesel to each...
Try not to get too disappointed I like to remember the saying "success in school doesnt equal success in life" With that said I wouldn't list my GPA you made it through school and have an engineering degree. If I were you I would be working towards my PE licence that is what really will get...
yes but that meter is only rated 600V and we are dealing with a 4160V motor. What voltage is that motor going to produce? I know it will be less then 4160 but will it be less then 600V?
Gunnar,
Do you have any Idea of the amount of voltage we can get out of this motor? It has been sitting for 2-3 months. Also what would it do if we hooked up 480 V to this motor while it was uncoupled? Thanks for your help
I have a 4160 V 1000 HP Motor I want to check the rotation on. However we recently had a failure and would prefer not to do a bump test. Is there another solution?
They are right that a normal fuse would be conservative but that is totaly forgeting about the CL feature. I would check and see if it makes a huge difference in required protection and only if it does would I try to find out more information from the fuse maker. I dont' really have an answer...
I agree that the IEEE 1584 is not based on testing anywhere near complete. However, what do your salesmen sugest you do? Are they trying to sell you somthing you don't need? Also what do they sugest you do about this I would use the equations from the IEEE standard not because they are corect...
It really depends on the type of switchgear you are using. If you could contact buswork not protected by the main I would use the value of arc flash based upon a claculation based on no main breaker. However if you have a seprate main you might be able to use the lower value. In my company we...
what is the total usage of the plant? If it's more then 1 MW then you could use it to run the plant bus and not back feed into the utility. You might also have to corect the powerfactor to avoid poor powerfactor charges.
