APT 8520 - Output Power, Power Factor and Output Current Considerations

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*5 No load to Full load, for output frequencies of <100Hz reference the Load Regulation (Hardware) described
in the table on page 8, Section 3.1.
*6 DC to 300 kHz components at voltage=0V.*7 At voltage > 10V.
*8 At output frequency 30Hz - 1200Hz. Response time < 7S at output frequency 5 - 29.9Hz. Response time
< 2S at DC output. When the OC_FOLD function is enabled, the transient current and power cannot exceed
110% of the total power, otherwise the protection will be triggered.
*9 At the 10% to 100% of the maximum rated current.
*10 At the 10% to 100% of the maximum rated power. If output current exceeds the current measurement L
range, power measurement accuracy follows the H range.
*11 Eciency is tested at input voltage 220VAC with maximum power to a resistive load, output frequency
5Hz to 500Hz.
*12 At 10% to 90% of output voltage.
*13 The operating humidity is non-condensing.
3.2 Output Power, Power Factor and Output Current Considerations
The reactive output power specication of APT 8500 series, models 8505, 8512, and 8520 change depending
on the power factor of the load. While the 8505, 8512 and 8520 are specied as 400VA, 800VA and 1.6kVA units
respectively, they can actually output up to 25% more reactive power based on the power factor of the load, thus
keeping the real power under the specied limit. The reactive power is at its peak when the power factor = 0.8.
See the chart below for more information:
Models 8505 8512 8520
Output Power at pf ≤ 0.8 500VA @ 400W 1250VA @ 800W 2000VA @ 1600W
Output Power at pf > 0.8 400VA @ 400W 800VA @ 800W 1600VA @ 1600W
Model 8505
Model 8512