Specifications

XP600/1100 INSTALLATION AND OPERATION MANUAL
Page 7
specify these products is in Watts (W), which is power the inverter
can actually deliver. If the XP inverters were specified in VA, Our
1100 Watt inverter could be rated at 1375 VA at .8 power factor,
1570 VA @ .7 pf, or an incredible 2200 VA @ .5 pf. It is confusing to
specify a product in VA, because the power factor must also be
specified. XP-Series inverters can output their full rated
oo
power continuously at 40 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.
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.XP-600 and XP-1100
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 peak current does not exceed 300% of rated
RMS current. Should this number be exceeded, 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 overload shuts off in one second. A slight overload
may require several seconds. This typically requires a .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, so no external current limiting devices are necessary.
XP-Series inverters can output their full rated power
continuously at 40o C. The inverter is derated 20% of its