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CYG PRS-7367 - Page 188

CYG PRS-7367
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Protection Functions
180 PRS-7367
default is 150ms, the minimum is 50ms.
Steady type
The tripping BO last for at least 94Ti_PulseTime.
The return condition: no current, CB Open position, no current or CB Open position, no
current and CB Open position.
The tripping BO will return after the return condition is ok and last for the 94Ti_OffDelay
setting.
When CB Open is used, all condition is ok but the CB Open is still not 1, the tripping BO
will return after 1s.
Ia<0.05In
ANA
Ib<0.05In
ANA
Ic<0.05In
ANA
&
FLG94T_NoCur
Figure 3.35-2 The No current condition
94T_TripClear
FLG
SIG 94T_TripIn
SIG94T_TripOut
&
1
SET
94T_ModeOutput=1
&
&
SIG94T_LockOut
1
0 / 94T_PulseTime
OnDelay / 0
SIG 94T_TripOut
Figure 3.35-3 The 94T tripping and Lockout BO

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