Instruction manual
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AQ G3x7 Generator protection IED
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Figure 3-44 Schema of the negative sequence component calculation
3.2.10.6
The definite time and inverse type characteristics
This module calculates the required time delay based on the Fourier components of the
negative sequence current. The formulas applied are described in Chapter 1.1.
The input is the basic Fourier component of the negative sequence current (INegFour) and
parameters.
The outputs are the internal status signals of the function. These indicate the started state
and the generated trip command if the time delay determined by the characteristics expired.
Figure 3-45 Schema of the characteristic calculation
