ABB RET670 Commissioning Manual page 14

Table of contents
8
Completing the test.............................................................. 221
Fuse failure supervision FUFSPVC...........................................221
Checking that the binary inputs and outputs operate as
expected ..............................................................................222
Measuring the operate value for the negative sequence
function ................................................................................222
Measuring the operate value for the zero-sequence
function ................................................................................224
Measuring the operate value for the dead line detection
function.................................................................................224
Checking the operation of the du/dt and di/dt based
function ................................................................................225
Completing the test.............................................................. 226
Fuse failure supervision VDSPVC.............................................226
Completing the test.............................................................. 227
Control............................................................................................ 227
Synchrocheck, energizing check, and synchronizing
SESRSYN................................................................................. 227
Testing the synchronizing function....................................... 229
Testing the synchrocheck functionality.................................229
Testing the energizing check................................................232
Testing the voltage selection................................................233
Completing the test.............................................................. 235
Apparatus control APC.............................................................. 236
Voltage control TR1ATCC, TR8ATCC, TCMYLTC, TCLYLTC. 236
Secondary test..................................................................... 238
Check the activation of the voltage control operation...........238
Check the normal voltage regulation function...................... 239
Check the undervoltage block function................................ 240
Check the upper and lower busbar voltage limit.................. 240
Check the overcurrent block function................................... 241
Single transformer................................................................ 241
Parallel voltage regulation.................................................... 242
Completing the test.............................................................. 247
Single command, 16 signals SINGLECMD............................... 247
Interlocking................................................................................ 247
Scheme communication................................................................. 247
Scheme communication logic for distance or overcurrent
protection ZCPSCH .................................................................. 247
Testing permissive underreaching....................................... 248
Testing permissive overreaching..........................................248
Testing blocking scheme......................................................248
Testing delta blocking scheme............................................. 249
Checking of unblocking logic................................................249
Transformer protection RET670 2.2 IEC
Commissioning manual