Do I take this into consideration? If so how do I size wire in a building with a safety generator? What is my "Ze" when the supply switches from DNO to the safety generator? How do diesel generators behave during faults?
perspicacious:
From the large print extract:
Generator can sustain 2.5 to 3 times rated current with a 3-phase fault applied for approximately 10 seconds without damage to alternator.
The alternator windings may well be able to, but I'm struggling to accept that the associated prime mover can produce 2.5 to 3 times it's rated output for a second, yet alone 10 seconds. What size is the flywheel?!!!!!
Regards
BOD
There is no flywheel. It just s diesel set with an alternator. Perhaps UK gensets can not export short circuit current to the same degree as foreign sets?
perspicacious:
From the large print extract:
Generator can sustain 2.5 to 3 times rated current with a 3-phase fault applied for approximately 10 seconds without damage to alternator.
The alternator windings may well be able to, but I'm struggling to accept that the associated prime mover can produce 2.5 to 3 times it's rated output for a second, yet alone 10 seconds. What size is the flywheel?!!!!!
Regards
BOD
There is no flywheel. It just s diesel set with an alternator. Perhaps UK gensets can not export short circuit current to the same degree as foreign sets?
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