IPC402x-UM-2209-1-2.x.x (en)
Ensto Protrol AB
Phone: +46 31 45 82 00
Alfagatan 3
internet: www.protrol.se
431 49 Mölndal, SWEDEN
48
e-mail: [email protected]
Settings
–
Earth Fault Protrol
:
Parameter
Description
Range
Factory value
Unit
Enable
Protrol earth fault function activated
Yes or No
No
-
Level
Earth fault current level
0.1..100.0
2.0
A
Delay
Time delay between
START
and
TRIP
0..10 000
100
ms
Event delay
Time delay for
TRIP
interlocked with input
0..25 000
0
ms
Input qualifier
Input for release of
TRIP
0..16
0 (non)
-
Trip relay
TRIP
output relay
0..8
0 (non)
-
Relay pulse
Pulse length of
TRIP
output signal
100..10 000
500
ms
Reignition enable
Reignition feature activated
Yes or No
Yes
-
Reignition delay
Time window for reignition to be identified
0..25 000
2 500
ms
Level 1 - set point
address
1
Address for
Set point command
in accordance
with IEC 60870-5-101/-104.
0..16 777 214
0
-
Delay 1 - set point
address
Adress för
Set point command
in accordance
with IEC 60870-5-101/-104.
0..16 777 214
0
-
Specialist settings
Parameter
Description
Range
Factory value
Unit
Trig level
Trig level for earth fault
– not possible to set
0.0..100.0
90% of Level
A
Asym level
Asymmetry level
1.0..1000.0
3.0
-
TPAD level
Alternative asymmetry level
1.0..1000.0
1.5
-
TPAD angle 1
Angle restriction 1
0.0..100.0
30.0
deg
TPAD angle 2
Angle restriction 2
90.0..270.0
150.0
deg
Early start
Alternative for the reignition function
0..2
0
-
Fast reset
Deactivation of fast reset i r.
0.2.3
0..1
0
-
Minimum arcing time
Shortest time for reignition/arcing fault
0..25 000
0
ms
8.5.4 Non-Directional Earth Fault
Activation of non-directional earth fault can be selected as
Always
or only after closing of the circuit
breaker,
Only at Close
. Closing or energization is detected using an input
indicating ON, specified by the
parameter
Input qualifier
, or by using the current change. The two alternative ways of detecting a closed
circuit breaker work in parallel. The earth fault function is activated during a set time, parameter
Event
delay
.
The non-directional earth fault function measures the residual
current,
Ia
+
Ib
+
Ic
. The measurement
method can be chosen between
RMS
and
Fundamental
. The latter means that only the fundamental
harmonic is measured, since characteristic harmonics are suppressed.
1
Enheten startar om 10 s efter senaste Set point-kommando.