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  1. Mergoo

    Power Transformer

    unfortunately, i do not have access oscillography as i work remotely with the SCADA team. but i will go ahead and ask to check oil level and take it from there. but what if we don't have a leakage? could it be faulty Sudden Pressure Relay?
  2. Mergoo

    Power Transformer

    i have had 3 alarms on SEL-387A on the primary of 80/107/133 MVA 362.25 - 34.5kV transformer. The alarms are Sudden pressure main tank, sudden pressure LTC tank and Conservator or LTC low oil. my question is, are they all related? would something common has happened that initiated these alarms?

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