Protection Functions
154 PRS-7367
The time characteristic is according to DT. When the operation timer has reached the value set
by 32R_Op_T, the 32R_Op output is activated. If the power becomes normal before the module
operates, the operation resets after 30 ms.
The activation of the 32R_Blk input resets the timer and deactivates the 32R_Str and 32R_Op
outputs.
3.29.3 32R Application Scope
The reverse 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. 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.
3.29.4 32R Settings
In the following table, i is the protection stage number, it can be set according to the requirements.
Table 3.29-3 32R settings
3.30 Power protection 32
3.30.1 32 Overview
The relay provides power protection with independent definite time delay characteristics, it can be
used to over power, under power and reverse power.
This function contains a blocking functionality. It is possible to block the function outputs, timer or
the function itself, if desired.
3.30.1.1 Function Block
The function block of the protection is as below.
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