ABB Relion 670 Series Technical Reference Manual page 649

1MRK505222-UUS C
12.2.2.7
Technical reference manual
StartByCBOpen= Enabled
RI
RI_HS
ANSI05000788 V2 EN
Figure 321: Pulsing of the pickup inputs
Time sequence diagrams
Some examples of the timing of internal and external signals at typical transient and
permanent faults are shown below in figures
NOT
AND
AND
100 ms
AND
100 ms
AND
322 to 325.
Section 12
Control
PICKUP
³1
ANSI05000788_2_en.vsd
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