ABB ProtectIT REL 551 2.5 Installation And Commissioning Manual page 9

Dependability test .................................................................. 156
Time delay test ...................................................................... 156
Completing the test................................................................ 156
Residual overcurrent protection (ROCP) ......................................... 157
Measuring the operate limit of set values ................................... 157
Residual overcurrent ............................................................. 157
Dependability test .................................................................. 157
Time delay test ...................................................................... 157
Completing the test................................................................ 158
Chapter 14 Verifying the internal configuration........................... 159
Overview .......................................................................................... 160
Testing the interaction of the distance protection ............................ 161
Chapter 15 Testing the protection system ................................... 163
Overview .......................................................................................... 164
Testing the interaction of the distance protection ............................ 165
Chapter 16 Fault tracing and repair............................................... 167
Fault tracing ..................................................................................... 168
Using information on the local HMI............................................. 168
Using front-connected PC or SMS.............................................. 169
Repair instruction ............................................................................. 171
Repair support ................................................................................. 173
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