ABB RED650 Technical Manual page 529

1MRK 505 394-UEN A
Y
A >=
pre-set value
Value Reported
(1st)
IEC99000530 V2 EN-US
Figure 261: Reporting with integral dead-band supervision
Line differential protection RED650 2.2 IEC
Technical manual
A1 >=
pre-set value
Y2 A1
Value
A
Reported
Y1
Amplitude deadband and xx cyclic (xx: 5 sec, 30 sec, 1 min)
In this mode of operation, the reporting interval will be cyclic like in reporting type
cyclic. This cyclic time has three options: 5sec, 30 sec and 1 min.
Additionally, if a measuring value has changed from the last reported value, and
the change is larger than ±ΔY predefined limits that are set by user (XDbRepInt),
then the measuring channel reports the new value to a higher level immediately
irrespective of cyclic trigger. See Figure
A2 >=
pre-set value
Y3
A2
Y4
Value
Reported
Value
Reported
262 for example.
Section 15
Monitoring
A3 + A4 + A5 + A6 + A7 >=
pre-set value
A4
A6
A5
A7
A3
Y5
Value
Reported
IEC99000530-2-en.vsdx
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