Recently we had experienced following problem All RCCB breakers (connected to t

Recently we had experienced following problem
All RCCB breakers (connected to the load as well as spares)
connected to various UPS systems at various floors at a
high rise building tripped during a power break down and
upon starting up of generator.This Generator is recently
inducted into the installation. Can any one explain the
reason behind this tripping.

Regards

Viswanathan

Question Posted / viswanathan

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Recently we had experienced following problem All RCCB breakers (connected to the load as well as s..

Answer / k.prakashchandra

If it was the first time for the gen, then wrong leads to
the bus-bars is suspected.

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