32
S&C Instruction Sheet 681-530
Programming the Control Settings
Trip Mode, Interrupter 1 and Interrupter 2
The
Trip Mode
setting confi gures the interrupting setting for the available interrupting
ways (Interrupter 1 and Interrupter 2) of the overcurrent control. There are three trip
modes available for Vista Underground Distribution Switchgear:
• Single-Phase Trip/Single-Phase Lockout
• Single-Phase Trip/Three-Phase Lockout
• Three-Phase Trip/Three-Phase Lockout
STEP 1.
Select a
Trip Mode
setting from the
Trip Mode
menu:
(a) Select the
Single-Phase Trip/Single-Phase Lockout
mode if the
interrupting way is equipped with single-pole fault interrupters. See
Figure 29. When the
Single-Phase Trip/Single-Phase Lockout setting
is set, phase A, B, and C can be confi gured independently, and only the
affected phase will trip and lockout in response to an event.
(b) Select the
Single-Phase Trip/Three-Phase Lockout
mode if the
interrupting way is equipped with single-pole fault interrupters. See
Figure 29. When the
Single-Phase Trip/Three Phase Lockout
setting is
set, the
Time Overcurrent Phase Protection
settings on the interrupter
page are confi gured using the settings listed under Phase A. All three phases
will trip and lockout in response to an event.
(c) Select the
Three-Phase Trip/Three-Phase Lockout
mode if the
interrupting way is equipped with three-pole fault interrupters. See
Figure 29. When the
Three-Phase Trip/Three-Phase Lockout
setting is
selected, the
Time Overcurrent Phase Protection
settings in the
interrupter page are confi gured using the settings listed under Phase B. All
three gang-operated phases will trip and lockout in response to an event.
STEP 2.
Figure 29. Select the Trip Mode setting for Interrupter 1 and Interrupter 2 from the Global Settings
Menu.
Click on the
Save
button and check for success confi rmation message.
