User Manual
XP600/1100/2000INSTALLATION ANDOPERATIONMANUAL
products is in watts (W), which is power the inverter can actually
deliver. If Exeltech inverters were specified in VA, our 1100 watt
inverter could be rated at 1375 VA @ 0.8 power factor, 1570 VA
@ .7 pf, or an incredible 2200 VA @ 0.5 pf.; and our 2000 watt
inverter could be rated at 2500 VA @ 0.8 pf., 2857 VA @ 0.7 pf,
or an incredible 4000 VA @ 0.5 pf. It is confusing to specify a
product in VA, because the power factor must also be specified.
Exeltech's XP-Series inverters can output their full rated power
continuously at 30 C (86 F), and the XP-2000 at 25 C.
The inverter can maintain a spectrally pure output with any load,
due to a specially designed non-linear control loop in the primary
DC to DC converter. This circuitry is one of three circuits which
protect the inverter from any overload condition.
XP-600, XP-1100 and XP-2000
These inverters can supply twice their rated output power for 3
seconds, in order to start motors or supply in-rush currents to
electronic loads. If output power is exceeded for greater than 3
seconds, output voltage is reduced to a level which will provide
the inverter’s rated power to the load by clipping tops of the
waveform. The inverter can operate safely in this mode
indefinitely. Should the overload condition clear, the inverter will
again provide the cleanest Sine Wave in the industry. This over-
current circuitry insures maximum current does not exceed 300%
of rated RMS current for XP-600 and XP-1100; and 200% of
ratedRMScurrentforXP-2000.Shouldthisnumberbeexceeded,
it will again reduce output voltage as required to maintain that
limit. Again, the inverter can operate in this mode indefinitely, so
that when the overload clears, output voltage is automatically
restored. The third protection mechanism is short circuit. If the
inverter exceeds it’s peak current (Ip) capacity for a prolonged
period, it will shut off automatically. The period of time required to
shut off changes with the degree of overload. A high over load
shuts off in one second. A slight overload may require several
seconds. This typically requires a 0.5 ohm load per 1000 watts,
for several seconds. This guarantees the inverter is disabled, in
the event that the user attempts to clear the short without first
shutting off the inverter. The inverter in fact, acts as an extremely
high performance circuit breaker. The short circuit and overload
circuitry responds much faster than any normal fuse or breaker,
.
.
.
.
Page4