[Milsurplus] Mil generator

[Richard Brunner]

Re; Delta connected generators

Generators are usually Y connected because a delta connected generator 
permits harmonic currents to circulate within the delta connection, 
subtracting from VA available to the external load.  It is possible to 
build a generator which merely circulates current and cannot supply a 
load. (yes, it has been done, but not intentionally)  Delta connected 
generators can be built, but are unusual.  The Y connected generator 
also provides a convenient (neutral) grounding point.  Grounded vs 
ungrounded systems is a whole 'nother controversy, and we are getting 
too far off topic... (Ungrounded systems are not BAD!  At lv, system 
transients are well within insulation strength, and an ungrounded system 
is more reliable. At hv it's a different story.)

Richard Brunner, AA1P