S&C TripSaver II Installation And Operation

S&C Instruction Sheet 461-502 27
Operation
Understanding the Active TCC Curve When
the TripSaver II Recloser is in Remote Non-
Reclose (R-NR) Mode
A SCADA communication can place a TripSaver II
recloser with the Extended Open Interval option
(option “-O”) into Remote Non-Reclose (R-NR) mode if
remote communications are enabled via the TripSaver® II
Communications Gateway. After the recloser drops open
under R-NR mode, the recloser will operate in Auto mode
if it is closed into its mounting with the MODE-SELECTOR
lever is in the Up position for a period of 5 minutes after
re-energization. This is called Temporary Auto mode.
With the addition of the new NR-Standard, Cold Wakeup,
and Post Fault Wakeup curves available with TripSaver
II Cutout-Mounted Recloser firmware versions 1.8 and
1.7, and with the ability to turn off the Temporary Auto
mode, the TripSaver II recloser may behave differently
from what is expected. Table 1 explains which curve is
active depending on the MODE-SELECTOR lever position,
the R-NR mode, the conditions the switch is “waking up”
from when being closed into its mounting, and whether
the Temporary Auto mode has been disabled under the
R-NR Functions menu.
Table 1. Active TCC Curve when TripSaver II Recloser is in R-NR mode
Settings and Conditions Active TCC Curve
MODE-
SELECTOR
Lever Position
R-NR Mode
●
Condition
During
Wakeup
Temporary
Auto Feature
Setting in
R-NR Feature
Menu
Temporary
Auto
Standard NR
Cold Wakeup
NR
Post Fault
Wakeup NR
Up
Off
Warm
■
–
X
Cold X
Post-fault X
On
Warm
■
–
X
Cold X
Post-fault
Off
▲
X
On
▲
X
Down
Off
Warm
■
–
X
Cold X
Post-fault X
On
Warm
■
–
X
Cold X
Post-fault X
● When the TripSaver II recloser is set to the Remote Non-Reclose
(R-NR) state via SCADA.
■ TripSaver II Recloser is “Warm” when the control is awake. (i.e., seen
the appropriate “wake up” current and has not dropped below the “stay
on” threshold current.
▲ The Temporary Auto mode can be enabled or disabled using the Dis-
able Temporary Auto Post-Fault Wakeup mode in Remote-NR button
found in the R-NR Functions menu of the service center configuration
software. This ONLY disables Temporary Auto mode when the switch is
in R-NR mode with the lever in the Up position.
Continuous Current of
TripSaver II recloser
Wake Up Current Stay On Current
40 A 1 A 0.5 A
100 A 4 A 1.5 A
200 A 8 A 3 A

S&C TripSaver II Specifications

General

Brand	S&C
Model	TripSaver II
Category	Industrial Electrical
Language	English