Section 6 Calibrating injection based sensitive rotorearth fault protection6.1 Commissioning process GUID-837911AC-D87E-4E10-9D7D-B74A9F45A815 v1The commissioning process utilizes the commissioning tool ICT. The instructions forthe process cover installation, calibration, commissioning, monitoring and auditing forthe sensitive rotor earth fault ROTIPHIZ (64R) function.6.2 Commissioning tool ICT GUID-0C099215-B194-4212-AE81-15F840E24C50 v3The sensitive rotor earth fault protection function in IED requires a number of settings.The settings k1, k2 and the reference impedance require measurements on the generatorperformed by the ICT (injection commissioning tool). The factors are derived inconnection to the calibration measurements during commissioning. ICT is anintegrated part of the PCM600 tool.Furthermore, ICT also assists the commissioning engineer to perform a successfulinstallation because of its structure and validating capabilities. During installation,commissioning and calibration, ICT performs various tests to verify that theinstallation is acceptable and the calibration successful. Besides carrying out the actualtests, ICT also provides the commissioning engineer with tips if needed during thecommissioning.When ICT is started, rotor earth fault protection is chosen.There are five different parts of the ICT tool to be performed at commissioning andoperation:1. Installing2. Calibrating3. Commissioning4. Monitoring5. AuditingBefore proceeding make sure that all necessary connections are in place.1MRK 502 073-UUS A Section 6Calibrating injection based sensitive rotor earth fault protectionGenerator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 63Commissioning manual
