Answer / sachin

Generally a DG manufacturer have facility of load testing
at there end. While testing auto synchronisation ,
protective relaying like Reverse power , Ground Fault ,
Short ckt , voltage unbalnce etc test can be carried out.
For synchrinisation test grid power & DG power can be used.
other regular test can also be carried out at manufacturing
stage also.

Answer / engineered

DG auto synchronising panel are equiped with Numerical
series relays,
At manufacturing facility grid power is used for
synchronisation purpose.

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