Woodward MRI3-ITE, Manual

Page: 61 / 64

Manual MRI3-ITER GB Woodward
DOK-TD-MRI3 ITERE Rev.A 61
Parameter protection
Function
Unit
IT ITE ITER Default
settings
Actual
settings
2 parameter sets X X X Set 1/Set
2 Set
1
Set
2
I
B,A
Base current of the thermal over-
load protection (low set element) x I
N
X X X 0.40
k
A
Constant X X X 0.50
I
B,A
Energizing delay (time )for the
thermal overload s X X X 0.04
I
B,T
Base current of the thermal over-
load protection (high set element) x I
N
X X X 0.40
k
T
Constant X X X 0.50
I
B,T
Energizing delay (time )for the
thermal overload s X X X 0.04

C
Time constant (cooling down) min X X X 0.5

W
Time constant (warming up) min X X X 0.5
I> Pickup value for phase overcur-
rent x I
N
X X X 0.20
CHAR I> Tripping characteristic for phase
overcurrent element X X X DEFT
tI> Trip delay for phase overcurrent
element (s) X X X 0.06
I>+CHARI> Reset Modus X X X
I>> Pickup value for overcurrent high
set element x I
N
X X X 1.00
tI>> Trip delay for overcurrent high
set element s X X X 0.06
1:1/3pha/e-n Residual voltage measuring X 3pha
U
E
Pickup value for residual voltage V X 1/2/5
I
E>
Pickup value for earth fault low
set element x I
N
X X 0.01
WARN/TRIP Warning/tripping setting X X TRIP
CHAR I
E
Tripping characteristic for earth
fault overcurrent element X DEFT
tIE> Trip delay for earth fault overcur-
rent elemnt (s) X X 0.06
IE>+CHAR
I> Reset Mode s X 0
IE>> Pickup value for earth fault high
set element x I
N
X X 0.01
tIE>> Trip delay for earth fault high set
element s X X 0.06
SIN/COS SIN/COS - setting X SIN
Block/Trip Block/trip - time s X X EXIT
t
CBFP
Trip time circuit breaker failure
protection X X X X EXIT
RS* Baud-Rate of serial interface X X X 9600
RS* Parity check of serial interface X X X even
RS Slave Address of serial interface X X X 1
*only Modbus Protocol