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...
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...
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
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...
Hi, I am trying to test a relay (GE multilin 745) for diferential protection. I am able to confirm it picks up on differential with a setting a of .3 X CT(5) - and picks up at 1.55 for both W1 and W2 abc.
My problem is trying to find the slope of the relay.
I then apply 5A to W1 and 2A to W2...
