Table of contents
Section 1
Introduction.......................................................................................................13
1.1
This manual........................................................................................................................................13
1.2
Intended audience............................................................................................................................13
1.3
Product documentation..................................................................................................................14
1.3.1
Product documentation set...................................................................................................... 14
1.3.2
Document revision history.........................................................................................................15
1.3.3
Related documents......................................................................................................................15
1.4
1.4.1
Symbols......................................................................................................................................... 16
1.4.2
Document conventions...............................................................................................................17
1.5
Section 2
Safety information........................................................................................... 27
2.1
Symbols on the product..................................................................................................................27
2.2
Warnings............................................................................................................................................ 27
2.3
Caution signs.................................................................................................................................... 28
2.4
Note signs......................................................................................................................................... 29
Section 3
Available functions........................................................................................... 31
3.1
Main protection functions.............................................................................................................. 31
3.2
3.3
3.4
Communication................................................................................................................................44
3.5
Basic IED functions.......................................................................................................................... 47
Section 4
Starting up........................................................................................................ 49
4.1
4.2
Commissioning checklist............................................................................................................... 49
4.3
Checking the power supply........................................................................................................... 50
4.4
Energizing the IED........................................................................................................................... 50
4.4.1
Checking the IED operation...................................................................................................... 50
4.4.2
IED start-up sequence................................................................................................................ 50
4.5
4.6
4.7
Checking CT circuits........................................................................................................................55
4.8
Checking VT circuits........................................................................................................................56
4.9
Using the RTXP test switch............................................................................................................56
4.10
4.10.1
Binary input circuits.................................................................................................................... 57
4.10.2
Binary output circuits................................................................................................................. 57
4.11
Transformer protection RET670
Commissioning manual
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Table of contents
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