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  1. sudiptoghosh

    MICOM P923 RELAY

    Alsthom Micom P923 RELAY in our generator relay panel has tripped on undervoltage as seen from fault records.The relay was set to operate at 80 % voltage with a definite time lag of two seconds.Though it is showing that the relay has tripped on undervoltage in fault records , but when we see...
  2. sudiptoghosh

    69 KV GSU for 66 kv system

    What is the advantage of a GSU transformer of 11KV/69 KV Connected to a 66KV grid.Why 69 KV is used instead of 11kv/66 KV
  3. sudiptoghosh

    TG Set load fluctuations due to grid

    We have a 18 MW generator running in parallel with the utility grid.The max generation is around 14 MW.After 4MW of internal consumption remaining 10 MW is exported to Grid. Today it was noticed that thre was a severe hunding in the TG load ie.. from 10 MW it went down to 2 MW and again picked...
  4. sudiptoghosh

    Adding a second captive power plant

    We have a Captive Power plant of 18 MW Capacity.The generation is at 11KV and after catering to our plant requirements the excess power is being sent to the 66 KV grid through a YNd1 66KV/11KV,20 MVA transformer bank.When the CPP is under maintenance or not operational the grid power,stepped...

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