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  1. Pit2005

    Circulating current on transformer neutral

    The 240v panel is in the control house at the substation. The 240v is brought to the transformer to power fans, heaters, LTC, and lights. So it is 47 amps from the control cabinet to the control house 240v panel on the number 6 conductor back to the ground grid and into the transformer control...
  2. Pit2005

    Circulating current on transformer neutral

    That day we had roughly 44 amps according to the transformer differential relay.
  3. Pit2005

    Circulating current on transformer neutral

    We have been having an issue with our control cabinet on a 138kv to 13.2kv delta to wye 25MVA transformer. We had our control cabinet burn up an incon tap position monitor blow fuses in our Beckwith and trip breakers in our cabinet as well and leave scorch marks on some conduit connections...
  4. Pit2005

    Abb CA16 relay

    I have been attempting to build a test for a ABB/Westinghouse ca16 bus differential relay. The software and test set I am using is protest paired with a doble 6150. I can't seem to get the percent differential test to work with the instructions in the manual. If anyone could point me in the...

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