ABB RED670 Commissioning Manual page 248
Line differential protection
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Also See for RED670:
- Commissioning manual (308 pages) ,
- Product manual (168 pages) ,
- Technical reference manual (1232 pages)
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Section 11
Testing functionality by secondary injection
Table 42:
INPut
CR!
CHERR1
CR2
CHERR2
LOCTR
LOCTR_A
LOCTR_B
LOCTR_C
Table 43:
OUTPut
Non
TRIP
TR_A
TR_B
TR_C
7.
Connect the trip output to a timer.
8.
Have inputs CR!and CR2 activated. Start the timer from activation of input LOCTR and stop the
timer from TRIP output.
9.
Check the trip time.
If OpMode = 1 Out Of 2:
10.
Activate input and check output signals according to table
Table 44:
INPut
CR!
CHERR1
CR2
CHERR2
LOCTR
LOCTR_A
LOCTR_B
LOCTR_C
242
Activate input signals if OpMode = 2 Out Of 2
Activate output signals if OpMode = 2 Out Of 2
Activate input signals if OpMode = 1 Out Of 2
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1MRK 505 378-UUS Rev. J
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Line differential protection RED670
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Commissioning manual
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