L2275
Emax UL
31/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
12.7 Default settings
The PR111/P-A is supplied by ABB SACE with the following preset parameters:
Default settings (preset by ABB SACE)
#
Protection
Threshold
Time
Curves
1
L
0.4 In
A (3s)
k/I
2
2
S
Off
A (0.05s)
k
3
I
2 In
—
—
4
G
Off
A (0.1s)
k
5
Iinst
E1 (*)
—
—
6
Neutral sel.
50% (°)
—
—
•
(*) Parameters set with these values only for PR111 sold as a loose piece.
•
(°) Setting can only be modified by ABB SACE
12.8
Putting into service
12.8.1 Connections
For the connections to be carried out by the user, it is advisable to strictly follow what is indicated in this document.
This means that we shall be able to satisfy all the international reference Standards and guarantee perfect operation of the trip unit even
under severe environmental and electromagnetic conditions. Take particular care with the grounding connections.
12.8.2 CT and SA connection check
If installation of the PR111 has been carried out by the user, before putting the power circuit breaker into service, it is advisable to check
correct connection of the CT and/or SA cables, and if this has not been done, immediately open the power circuit breaker and make the
connections.
12.8.3 Test
Before putting into service it is advisable carry out a test (“Trip test”) of the whole SA chain by using the TT1 accessory.
Positive outcome is shown by the power circuit breaker opening (see 12.5.2).
12.8.4 Initial settings
If the PR111 is supplied directly installed in the power circuit breaker, ABB SACE will see to applying the adhesive labels for all the variables relative
to the power circuit breaker (e.g. Type of power circuit breaker, CT size, etc.). Vice versa, if the PR111 is supplied as a loose piece, it will be up
to the user to apply the adhesive labels relative to all the necessary parameters.
It should be noted that ABB SACE defines each possible setting in a sensible way (see default parameters).
Apart from this, it is absolutely indispensable for the user to carefully define each modifiable parameter, before putting the PR111 into
service.
Ref. Fig. 36
Description
A
Dipswitch for setting protection function “L” threshold
B
LED for signaling protection function “L” under timing.
C
Dipswitch for setting protection function “S” threshold
D
LED for signaling protection function “S” under timing.
E
Dipswitch for setting protection function “I” threshold
F
Dipswitch for setting protection function “G” threshold
G
TEST connection for application of the TT1 accessory.
H
TEST connector for application of the PR010/T accessory.
L
Dipswitch for setting the protection curve function “G”
M
Serial number of the unit.
N
SACE Logo identifying the product.
O
Setting the Neutral protection
P
In (Continuous current rating of the CTs installed).
Q
Dipswitch for setting the type of protection curve function “S”
R
Dipswitch for setting the protection curve function “S”
S
Dipswitch for setting the protection curve function “L”
T
Dipswitch setting diagram for setting the required value.
