Figure 10-1 Reverse Power Flow Duty Or Sink Time Duty - NF DP Series Instruction Manual

10. Specifications
*3: In the case of 10 V to 150 V / 20 V to 300 V, sine wave, no load, 45 Hz to 65 Hz, DC voltage
setting 0 V, 23 °C5 °C.
*4: If the output voltage is higher than the rated value, this is limited (lowered) to satisfy the power
capacity. If there is the DC superimposition, the active current of AC+DC satisfies the maximum
current. In the case of 40 Hz or lower or 400 Hz or higher, and that the ambient temperature is
40 °C or higher, the maximum current may decrease.
*5: For the capacitor input type rectified load (crest factor=4), the rated output voltage, and 45 Hz to
65 Hz.
*6: In the case rated output voltage, 50 Hz or 60 Hz, power factor −1. It may reduce the reverse
power flow if ambient temperature is 40 °C or higher. If the output voltage is higher than the
rated value, power capacity is limited to 40 % (continuous, 30 °C to 40 °C), 50 % (continuous,
lower than 30 °C), and 100 % (reverse power flow time  180 s, reverse power flow duty  0.2,
40 °C or lower). About duty, see Figure 10-1. Only for DP series Type R, the reverse power flow
is supported.
Reverse power flow time t1  180 s
Reverse power flow duty = t1/(t1+t2)≦0.2
Reverse power flow or sink current
Under 100 %

Figure 10-1 Reverse Power Flow Duty or Sink Time Duty

*7: In the case that the power input is single-phase 170 V or lower, models with 6 kVA or higher
have the limit on the power capacity in the power running.
*8: For 45 Hz to 65 Hz, the rated output voltage, no load and the resistance load for the maximum
current, and the operating temperature.
*9: For 40 Hz to 550 Hz, sine wave, the rated output voltage, the resistance load for the maximum
current at 55 Hz, and 55 Hz reference.
*10: Set for the L1 phase. The component of the phase angle setting is added for the other phases.
*11: In the case of 50 V or higher, sine wave, and same load condition and voltage setting for all
phases.
*12: In the case of the AC mode and 23 °C5 °C.
272
t1 t2
PROGRAMMABLE AC POWER SOURCE
Tim