ABB RET670 Commissioning Manual page 81

Transformer protection version 2.1 ansi
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1MRK 504 154-UUS B
Commissioning manual
This may change both binary input values and output relay states and will undo any
forcing done by using the LHMI.
If the IED is left in test mode, then it is still possible to perform new forcing
operations, both from LHMI and from PCM600
Section 9
Testing IED operation
75

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