install bus duct. Megger bus duct. bus duct fails megger test. re assemble and test again, fails again then don't put in service or you are asking for trouble. and contact Schneider or eaton ect.
hey there,
was doing a reach test on a SEL relay today with a RCA of 79.6deg., Z1 = 1.43, after some calculations i came up with these values below. this worked fine for finding 1 single point of the offset mho circle. I couldnt figure out how to calculate another point on the circle to test at...
Thank you, this means a lot, I have been trying to learn relaying for a while and am currently on the subject of distance relaying, and the resources and help you guys gave me is greatly appreciated. The hardest thing for me is the resources, to find the right resources is tough to me. I have...
hey, looking for some way to figure out the answer to this problem. but a source to learn it or an explained answer would be greatly appreciated.
" - A simple single phase impedance relay is set for Z=(R-1)^2 + (X-2)^2 = 4. It protects 2 lines. The first line has an impedance of Z =.5 +j2. The...
can anyone answer this problem for me, was asked it and i cannot get it right..
an industry has a load of 950kw with 57% PF. what is the value of reactive power flowing and what is the apparent power.
I think-->( va= root(vars^2 + w^2)
am i supposed to assume a voltage of 600v?
Hi, I was wondering if anyone could give me an example how to correct power factor with a synchronous motor
I know how to correct lagging pf with a capacitor bank, but in school never went over how to with a synchronous motor.
If anyone has an example problem i could study with a 1500w synch...
ok, yah i will pick up a loop isolator before i go. Manual says use isolation on loop, and dont use isolation on loop? o well im picking one up today either way hopefully it will work. thanks for the help
thanks for the quick replay,
sry should have descrbed better- the flow meter is connected but no flow- just sayed zeroed so people would no for sure its zero or no flow.
and also yes the ion is 0-20, which means if there is less than 4mA then i go into negatives 0mA = 50, 4ma = 0,
Also, yes...
Hey guys, got a good question that has me stumped. was at a trouble call for some odd readings from a flow meter.
-So, there is a flow meter with a little propeller in a 6" pipe, this sends a frequency signal to a GF signet 5500 flow transmitter which also displays the flow consumption.
-This...
hey, very new to skm, and this is my first project using this software, just wondering if there is a component for a splitter box on skm, im using 6.5 and cant find one anywhere, or what is the substitute,
thanks
woow! good read!
I cannot beleive that how expensive a VLF test set is! I rented one and used a few times, and would like to purchase one now, but at 32 000$, i find it would be fun project to make one. but alot more complex than a tesla coil.
Thanks for the info! any more anyone?
Hey,
I am currently looking into creating a tesla coil, and now that i have gotten started, i would rather build a VLF test set, since they are quite rare around here.
Was wondering if anyone here new if you could make a vlf test set with a high voltage transformer, operating with regualr...
I know that you need to ground the armour because you get induced voltage in the armour, and when a cable has a concentric neutral, it is also grounded for induced voltages again.
Im not sure about your other questions, but i beleive it is to seal the copper conductor, with ZERO air gaps, and...
