ABB RET650 Series Commissioning Manual page 9

7.4.4.2
7.4.4.3
7.4.5 Thermal overload protection, two time constants TRPTTR (49).......................................... 52
7.4.5.1
7.4.5.2
7.4.6 Breaker failure protection, phase segregated activation and output CCRBRF (50BF).... 54
7.4.6.1
7.4.6.2
7.4.6.3
7.4.6.4
7.4.6.5
7.4.6.6
7.4.6.7
7.4.6.8
7.4.7 Pole discrepancy protection CCRPLD (52PD)............................................................................58
7.4.7.1
7.4.7.2
7.4.8 Directional underpower protection GUPPDUP (37)................................................................. 58
7.4.8.1
7.4.8.2
7.4.9 Directional overpower protection GOPPDOP (32)................................................................... 60
7.4.9.1
7.4.9.2
7.5 Testing voltage protection functions........................................................................................... 61
7.5.1 Two step undervoltage protection UV2PTUV (27)....................................................................61
7.5.1.1
7.5.1.2
7.5.2 Two step overvoltage protection OV2PTOV (59)..................................................................... 63
7.5.2.1
7.5.2.2
7.5.3 Two step residual overvoltage protection ROV2PTOV (59N)................................................ 64
7.5.3.1
7.5.3.2
7.5.4 Overexcitation protection OEXPVPH (24)..................................................................................65
7.5.4.1
7.5.4.2
7.6 Testing frequency protection functions...................................................................................... 66
7.6.1 Underfrequency protection SAPTUF (81)...................................................................................66
7.6.1.1
7.6.1.2
7.6.2 Overfrequency protection SAPTOF (81).....................................................................................68
7.6.2.1
Transformer protection RET650
Commissioning manual
Four step non-directional residual overcurrent protection..............................................52
Completing the test..................................................................................................................52
Checking operate and reset values........................................................................................53
Completing the test..................................................................................................................53
Checking the phase current operate value,
Checking the residual (ground fault) current operate value
Pickup_PH ................................................................................................................................... 54
Checking the re-trip and back-up times............................................................................... 55
Verifying the re-trip mode....................................................................................................... 55
Verifying the back-up trip mode............................................................................................ 56
RetripMode = Contact ............................................................................ 56
Verifying the case
Verifying the function mode
Completing the test..................................................................................................................57
Verifying the settings...............................................................................................................58
Completing the test..................................................................................................................58
Verifying the settings...............................................................................................................58
Completing the test................................................................................................................. 60
Verifying the settings...............................................................................................................60
Completing the test.................................................................................................................. 61
Verifying the setting................................................................................................................. 61
Completing the test..................................................................................................................63
Verification of single-phase voltage and time delay to operate for Step 1...................63
Completing the test................................................................................................................. 64
Verifying the settings...............................................................................................................64
Completing the test..................................................................................................................65
Verifying the settings...............................................................................................................65
Completing the test................................................................................................................. 66
Verifying the settings...............................................................................................................66
Completing the test................................................................................................................. 68
Verifying the settings...............................................................................................................68
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Pickup_PH .....................................................54
Current&Contact ................................................................... 57
Table of contents
Pickup_N set below
3