ABB REG650 Technical Manual page 373

Generator protection
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1MRK 502 043-UUS B
Technical Manual
always active and will delay the input to output transition by the set time. The
ModeOutput for respective output decides whether the output shall be steady with an
drop-off delay as set by OffDelay or if it shall give a pulse with duration set by
PulseTime. Note that for pulsed operation since the inputs are connected in an OR-
function a new pulse will only be given on the output if all related inputs are reset and
then one is activated again. And for steady operation the OffDelay will start when all
related inputs have reset. Detailed logical diagram is shown in figure
ModeOutput1=Pulsed
Input 1
OR
ModeOutput2=Pulsed
Input 17
OR
ModeOutput3=Pulsed
ANSI11000290 V1 EN
Figure 170:
Trip matrix internal logic
Output signals from TMAGGIO are typically connected to other logic blocks or
directly to output contacts in the IED. When used for direct tripping of the circuit
breaker(s) the pulse time delay shall be set to approximately 0.150 seconds in order to
obtain satisfactory minimum duration of the trip pulse to the circuit breaker trip coils.
On Delay Time 1
0
Off Delay Time 1
AND
On Delay Time 2
0
Off Delay Time 2
On Delay Time 3
OR
0
Off Delay Time 3
Section 13
170
PulseTime
t
AND
OR
AND
0
PulseTime
t
AND
OR
AND
0
PulseTime
t
AND
OR
AND
0
ANSI11000290-1-en.vsd
Logic
Output 1
Output 2
Output 3
367

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