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  1. Anand Gupta

    power transformer 132kv/11kv huge humming sound problem

    One of our Power Transformer 132kv/11kv generating humming sound and also had vibration, transformer body and nearby steel structure are vibrating too much. 1. its WTI and OTI temp increasing 2 degree/Hrs without load, we isolated the T/R power after 60' temp. this prob occurred after short...
  2. Anand Gupta

    why AVR start permissive is 90% of the alternator Rated RPM

    Why AVR start permissive is 90% of the alternator Rated RPM what affects if permissive is less that than Rated RPM ?

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