ABB ret650 - Page 10

Section 5 Testing IED operation.....................................................31
Preparing the IED to verify settings..................................................31
Activating test mode.........................................................................33
Preparing the connection to the test equipment...............................33
Connecting test equipment to the IED..............................................34
Releasing the function to be tested..................................................35
Verifying analog primary and secondary measurement...................35
Testing protection functionality.........................................................37
Section 6 Testing functionality........................................................39
Testing disturbance report................................................................39
Introduction..................................................................................39
Disturbance report settings..........................................................39
Identifying the function to test in the technical reference
manual .............................................................................................39
Testing differential protection functions............................................40
Transformer differential protection T2WPDIF and
T3WPDIF ....................................................................................40
Verifying the settings..............................................................40
Completing the test................................................................41
Restricted earth fault protection, low impedance REFPDIF .......41
Verifying the settings..............................................................41
Completing the test................................................................42
High impedance differential protection HZPDIF .........................42
Verifying the settings..............................................................42
Completing the test................................................................43
Testing current protection functions.................................................44
Instantaneous phase overcurrent protection PHPIOC ...............44
Measuring the operate limit of set values...............................44
Completing the test................................................................44
Four step phase overcurrent protection OC4PTOC....................44
Verifying the settings..............................................................45
Completing the test................................................................46
Instantaneous residual overcurrent protection EFPIOC .............46
Measuring the operate limit of set values...............................46
Completing the test................................................................47
Four step residual overcurrent protection EF4PTOC .................47
Four step directional residual overcurrent protection ............47
Four step non-directional residual overcurrent
protection................................................................................48
Completing the test................................................................48
Thermal overload protection, two time constants TRPTTR ........48
Checking operate and reset values........................................48
Table of contents
2
Commissioning Manual