S&C Instruction Sheet 461-504 47
Using TripSaver
®
II Service Center Configuration Software Version 1.8
High Current Cutoff
The
High Current Cutoff
setting is a global setting that applies to all TCC curves
selected. When enabled, the overcurrent elements for all TCC curves will not time and
trip on fault current above the value entered. Protection will be provided by the upstream
recloser or downstream fuses.
High Current Cutoff
(checkbox)
.
Select this checkbox to enable the
High Current
Cutoff
setting. See Figure 66 on page 46.
High Current Cutoff, A.
Specify current (in amperes) above which the overcurrent
element of all enabled TCC curves will not time and trip (minimum value = 400; maximum
value = 6,300). See Figure 66. This value must be less than or equal to the interrupting
rating of the recloser. It also must be equal or greater than the
Sectionalizing Mode
Start Current
setting to avoid a gap in protection.
TCC Curve Settings—Default Curves
The software launches with a set of default TCC curve settings that match those
programmed into every standard TripSaver II recloser before it leaves the factory. This
is the starting point of the configuration process. The S&C default TCC curve settings
are shown below:
Initial Trip:
Microprocessor Recloser S&C 104 curve; Minimum Trip Current: 100 A;
Time Multiplier: x1; Reset Type: D/T (Definite Time); Reset Time: 0.1s; Advanced TCC
Curve Setup: Off.
Open Interval After Initial Trip:
5s.
Sequence Coordination (Disabled):
Microprocessor Recloser S&C 133 curve; Minimum
Trip Current: 100 A; Time Multiplier: x2; Reset Type: D/T (Definite Time); Reset Time:
0.1s; Advanced TCC Curve Setup: Off.
Coordination Reset Time
: 120s.
Test 1:
Microprocessor Recloser S&C 104 curve; Minimum Trip Current: 100 A; Time
Multiplier: x1; Reset Type: D/T (Definite Time); Reset Time: 0.1s; Advanced TCC Curve
Setup: Off.
Open Interval After Test 1:
5s.
Test 2:
Microprocessor Recloser S&C 133 curve; Minimum Trip Current: 100 A; Time
Multiplier: x2; Reset Type: D/T (Definite Time); Reset Time: 0.1s; Advanced TCC Curve
Setup: Off.
Open Interval After Test 2:
5s.
Test 3:
Microprocessor Recloser S&C 133 curve; Minimum Trip Current: 100 A; Time
Multiplier: x2; Reset Type: D/T (Definite Time); Reset Time: 0.1s; Advanced TCC Curve
Setup: Off.
O/C Sequence Time:
15s.
High Current Cutoff:
Off.
These default settings for the setup software used while in the
Standalone
(offline)
mode can be changed in the
Standalone
tab under the
Options
feature. See the
Options
feature under the
Tools
menu.
