and reverse direction
Min Reverse Operate Current
), which is applied in current
magnitude threshold supervision, and which is further defined with setting
Operating Quantity
. Available options are "Adaptive", "Amplitude" and
"Resistive".
When the above four conditions are satisfied, the
MFAPSDE_St
output is activated
once
Start Delay Time
has elapsed.
MFAPSDE_Oper
output activates after
Operate
delay time
has elapsed. Reset timer is started if any of the above four conditions is not
valid. In case the fault is transient and self-extinguishing,
MFAPSDE_St
output stays
active until the elapse of reset timer (
Reset Delay Time
). After the
MFAPSDE_Oper
output activation,
MFAPSDE_St
and
MFAPSDE_Oper
outputs are immediately
reset, if any of the above four conditions are not valid. In addition, the
MFAPSDE_OpFw
and
MFAPSDE_OpRe
outputs are activated based on the fault
direction.
The start and operate of fault are also available as GOOSE outputs
MFAPSDE_St
and
MFAPSDE_Oper
.
Output
MFAPSDE_Oper
is configured to LED 8 of the SiM8F
module. The LED turns ON when this signal becomes high. The LED
color depends on setting
Directional mode
of the MFAPSDE
function. The LED is green for forward setting and red for reverse
setting.
If the detection of temporary earth faults is not desired, the activation
of
MFAPSDE_St
output may be delayed with the
Start Delay Time
setting. The same setting can also be used to avoid restarting of the
function during long lasting post-fault oscillations, if time constants
of post-fault oscillations are very long (network losses and thus Low
damping).
The Fwd/Rev requirement affects the behavior of MFA panel LED,
ACT output and WHMI as defined in
Table 77:
Behavior of MFA panel LED, ACT output and WHMI status for various fault conditions
Sl.No
PCM600
setting
Fault
direction
ACT outputs
SIM8F
panel
LED
WHMI
Remarks
Start
Operate
OpFwd
OpRev
Start
Operate
Direction
1
Forward
Forward
Yes
Yes
Yes
No
Green
ON
ON
Forward
2
Reverse
No
No
No
Yes
-
-
-
Unknown
3
Reverse
with
previous
forward
1)
No
No
No
Yes
Green
(Flashing)
Latched
since a
forward
fault
occurred
in prior
Reverse
WHMI
direction
is
updated
with
instantan
Table continues on next page
1MRS757488 H
Section 6
Commissioning
RIO600
131
Installation and Commissioning Manual
Summary of Contents for Remote I/O RIO600
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