Phase Under Current
Description
The phase under current condition generally occurs when motor is running with no load.
The phase under current protection function generates the following signals:
-
Alarm: Any of the three-phase currents of the motor goes below the alarm level.
-
Trip: Any of the three-phase currents of the motor goes below the pickup level for the specified time delay.
Parameter Setting
The phase under current protection function has the following configurable settings:
|
Parameter |
Setting range |
Default value |
|---|---|---|
|
Function |
|
Alarm |
|
Pickup |
15–100% of IFLC in step of 1% |
50% of IFLC |
|
Time Delay |
0.1–6000.0 s in step of 0.1 s |
10 s |
|
Alarm Level |
15–100% of IFLC in step of 1% |
50% of IFLC |
|
Reset Mode |
|
Auto |
|
Auto-Reset Delay (applicable only if Reset mode is Auto) |
0.0–6000.0 s in step of 0.1 s |
5 s |