ABB Relion 670 Series Applications Manual page 597

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1MRK 511 401-UEN Rev. K

SMAI1:25 – SMAI12:36:

For task time group 4 this gives the following settings:

SMAI1:37 – SMAI12:48:

IEC07000199 V4 EN-US

Figure 283: Configuration for using an instance in task time group 2 as DFT reference.

Assume instance SMAI4:16 in task time group 2 has been selected in the configuration to

control the frequency tracking for all instances. Observe that the selected reference instance

(i.e. frequency tracking master) must be a voltage type. Observe that positive sequence

voltage is used for the frequency tracking feature.

For task time group 1 this gives the following settings (see Figure

SMAI1:1 – SMAI12:12:

For task time group 2 this gives the following settings:

DFTReference = DFTRefGrp4 for SMAI1:13 to use SMAI4:16 as reference (see Figure 283)

SMAI2:14 – SMAI12:24:

For task time group 3 this gives the following settings:

Bay control REC670

Application manual

DFTReference = ExternalDFTRef to use DFTSPFC input as reference

DFTReference = ExternalDFTRef to use DFTSPFC input as reference

DFTRefExtOut = DFTRefGrp4 to route SMAI4:16 reference to the SPFCOUT output,

DFTReference = DFTRefGrp4 to use SMAI4:16 as reference.

IEC07000199-4-en.vsd

for numbering):

Basic IED functions

Relion rec670