Completing the test.............................................................. 183
Overfrequency protection SAPTOF ..........................................183
Verifying the settings............................................................ 183
Completing the test.............................................................. 184
Rate-of-change frequency protection SAPFRC ........................184
Verifying the settings............................................................ 184
Completing the test.............................................................. 185
Multipurpose protection.................................................................. 185
General current and voltage protection CVGAPC..................... 185
Built-in overcurrent feature (non-directional)........................ 186
Overcurrent feature with current restraint.............................186
Overcurrent feature with voltage restraint............................ 187
Overcurrent feature with directionality..................................187
Over/Undervoltage feature................................................... 188
Completing the test.............................................................. 188
Secondary system supervision.......................................................188
Current circuit supervision CCSSPVC.......................................188
Verifying the settings............................................................ 188
Completing the test.............................................................. 189
Fuse failure supervision FUFSPVC...........................................189
Checking that the binary inputs and outputs operate as
expected ..............................................................................189
Measuring the operate value for the negative sequence
function ................................................................................190
Measuring the operate value for the zero-sequence
function ................................................................................191
Measuring the operate value for the dead line detection
function.................................................................................192
Checking the operation of the du/dt and di/dt based function 192
Completing the test.............................................................. 193
Fuse failure supervision VDSPVC.............................................193
Completing the test.............................................................. 194
Control............................................................................................ 194
Synchrocheck, energizing check, and synchronizing
SESRSYN................................................................................. 194
Testing the synchronizing function....................................... 196
Testing the synchrocheck check.......................................... 197
Testing the energizing check................................................199
Testing the voltage selection................................................201
Completing the test.............................................................. 203
Autorecloser for 1/2/3-phase operation SMBRREC ................. 203
Preparation of the verification ..............................................205
Switching the autorecloser for 1/2/3-phase operation
function to
On
and
Off
.......................................................... 206
Table of contents
Line distance protection REL670 2.1 IEC 7
Commissioning manual
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