Protection Functions
156 PRS-7367
32_Op_T is the operate time setting;
32_Dir can switch the operation mode.
3.30.3 32 Application Scope
The power protection can be used for generator protection against delivering an excessive power
beyond the generator's capacity to the grid, against the generator running like a motor, against the
motor running like a generator and protecting a motor which consumes more reactive power due
to loss of field, or protecting the generator from very low power output conditions. It also can be
used in feeder protection for indicating overload on the distribution system to indicate that a
customer is supplying power into the grid and for protecting the transformer from delivering an
excessive load.
3.30.4 32 Settings
In the following table, i is the protection stage number, it can be set according to the requirements.
Table 3.30-3 settings
3.31 Voltage Selection
3.31.1 Overview
The function is used to select one voltage between two bus voltages or two line voltages when
there is no external selection. The selection result depends on the type of system configuration.
3.31.1.1 Function Block
The function block of the protection is as below.
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