Siliken SE3.3Ni, Руководство пользователя

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Operation
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user’s manual inverter SE3.3Ni - SE3.8Ni - SE4.6Ni
2. Anti-Island :
When an “island” condition is detected, the inverter will stop feeding the power to the grid and/or the load. The “island” is defined as a grid
tied inverter maintaining operation and feeding power to a load that has been isolated from the utility power source. This refers to the automatic
shutdown of the inverter when there is an electrical disturbance on the utility grid. This is a safety feature which is primarily meant to prevent
staffs who might be working on the grid wires from the electrical shock.
3. Unit Power Factor :
The SE inverter intents to feed the power with unit power factor (PF = 1) to the utility during operation. The inverter continues sensing the
phase of the utility voltage, and constructs the output current waveform in phase with the utility voltage.
4. Maximum Power Point Tracking :
In order to find the best efficient way of utilizing the solar energy, SE inverters are designed to track and absorb the maximum power from
the PV array. The Maximum Power Point Tracking (MPPT) function is employed in the embedded control software to achieve this intent purpose.
3.3 LED indication
It may be needed to show the operating status during the operation. There are three LED’s on the front panel of the SE inverter (SE4.6NI in
this example) shown in Figure 3.3.1, used to indicate the operating status of the inverter. The detail explanations of the status and the
corresponding LED indicators are described in the following table.