I am looking for a single phase test set to test high burden electromechanical relays. I've used the T1000 (ISA) and Multi-Amp, but because they are just modern variacs, the waveform distortion is so much that timing tests are not accurate anymore. For the other relays (e.g. Digital types), we...
Thanks, Aakhrinaam. I ended up doing the RIO File myself last week. You are right about learning more in the process.
I wanted something to compare it to, but the test results obviously speak for itself.
Happy, testing...
Does anyone know where I can find RIO (Relay Interface by OMICRON) files on the internet? I am specifically looking for the RIO file for a GE Multilin T60 transformer protection relay.
SEL, Siemens and ABB have these files available, but I cannot find any for the new (UR Family) GE relays...
Guys, thanks for your replies so far. Let me try to give more information. I am testing a T60 (GE Multilin TX relay). GE provide a TX Diff calculation Excel sheet to help calculate the diff and restraint currents. They advise to unground the star points in the TX to test the pick-ups on a per...
Could anybody please explain the following: I am interested in the current distribution of a single-phase to ground fault on a YY transformer with both neutrals earthed. The PRAG explains that the currents for a A-E fault will be Ia=(2C1 + C0)I0, Ib= Ic= -(C1-C0)I0, where C0 and C1 are zero and...
