Is there any method to locate the fault in the PILOT wire which normally available in substations? The cross sectional area may be very small about 6 sq mm and is having DC 220- 250 V. Please suggest some method or instrument regards sunny317
It would appear that everyone is either having no issues with ABB relays or ignoring them in hopes that they will go away. That said, is anyone using a Doble 6150 w/Protest and have good results? nukesdg
peace be with you all Can you give me an idea, how to test SIEMENS 7sj622 directional o.c and directional e.f fault relay by using omicron .freja or any Numerical testing instrument? regardes mohammad elhaje
I am attempting to test the Negative Sequence Overcurrent on a 351 and 351S with an Omicron test set and my test plans just don’t seem to be working very well. I have managed to get a one shot to work but not an automated plan any suggestions? gcerniglia
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