ITech IT7900P Series User Manual page 103

7.8 Three-phase unbalance simulation
In the three-phase mode, the instrument defaults to three-phase balance mode,
and the three-phase input parameters will be set synchronously.
Users can turn off the function of three-phase balance control in the Config menu.
At this time, the IT7900P load can simulate the three-phase unbalance mode,
and the input parameters of ABC three phases can be set independently.
7.9 Load angle and unload angle control
IT7900P load mode can set the angle value for loading and unloading, and set
the On/Off Phase angle in the system menu, which can be set in the range of
0~359°. It is used to set the dynamic capability of the inverter output voltage
when the actual appliances are plugged in and out.
On/Off phase
When On Phase is set to angle control and the angle is set to 270°, the waveform
is shown below.
On-mode
Off-mode
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Load mode Operation
⚫ Phase angle control when
the input is turned on
⚫ Phase
⚫ Immediately
⚫ Phase angle control when
the input is turned off
⚫ Phase
⚫ Immediately
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