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  • Users: cristhmart
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  1. cristhmart

    Suddenly strong vibration and sound on a synchronous generator

    Hi! We have a 3.5 MW, 4.16 kV, 4 poles synchronous generator with brushless rotor refurbished recently by substitution of the four poles for original replacement parts. We put the unit in parallel service with another identical one delivering 1.6 MW at 0.8 pf each one. The vibration analysis...
  2. cristhmart

    E/F element of CDG36 trip

    Hi everyone. I have a 7.5 MW power plant with 3 old generators units of 2.5 MW working in parallel directly attached to a 4160 V bus bar. One of the units is having Earth Fault trips as it is read in a CDG36 relay. The CDG36 coil current is the sum of the secondary three phase currents of the...

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