ABB Relion 650 Series Technical Manual page 566

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Table of Contents

Basic IED functions

Function block

ANSI09000137 V1 EN-US

Figure 292: SMAI_20_1 function block

Table 514: SMAI_20_1 Input signals

Table 515: SMAI_20_1 Output signals

ANSI09000137-1-en.vsd

GROUP SIGNAL

Block group 1

Number of samples per fundamental cycle used for DFT

Reverse rotation group 1

First analog input used for phase L1 or L1-L2 quantity

Second analog input used for phase B or BC quantity

Third analog input used for phase C or CA quantity

Fourth analog input used for residual or neutral quantity

Number of samples per fundamental cycle from internal DFT

reference function

Grouped three phase signal containing data from inputs 1-4

Quantity connected to the first analog input

Quantity connected to the second analog input

Quantity connected to the third analog input

Quantity connected to the fourth analog input

Calculated residual quantity if inputs 1-3 are connected

1MRK 506 326-UUS B

SEMOD55766-1 v2

SEMOD54868-4 v5

PID-1251-INPUTSIGNALS v11

PID-1251-OUTPUTSIGNALS v9

Line distance protection REL650

Technical manual