ABB REG670 Applications Manual page 740

Relion 670 series generator protection

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Basic IED functions

IEC07000198 V3 EN

Configuration for using an instance in task time group 1 as DFT

Assume instance SMAI7:7 in task time group 1 has been selected in the configuration

to control the frequency tracking . 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: DFTRefExtOut = DFTRefGrp7 to route SMAI7:7 reference to the

SPFCOUT output, DFTReference = DFTRefGrp7 for SMAI1:1 to use SMAI7:7 as

reference (see Figure 344) SMAI2:2 – SMAI12:12: DFTReference = DFTRefGrp7

for SMAI2:2 – SMAI12:12 to use SMAI7:7 as reference.

For task time group 2 this gives the following settings:

SMAI1:13 – SMAI12:24: DFTReference = ExternalDFTRef to use DFTSPFC input

of SMAI1:13 as reference (SMAI7:7)

For task time group 3 this gives the following settings:

SMAI1:25 – SMAI12:36: DFTReference = ExternalDFTRef to use DFTSPFC input

as reference (SMAI7:7)

Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062

1MRK 502 071-UEN -

IEC07000198-2-en.vsd

for numbering):

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