S&C IntelliRupter PulseCloser Manual page 20

General Setup
20 S&C Instruction Sheet 766-530
Note: Exceptions to this may occur if there is a fault condition, the IntelliRupter fault
interrupter detects less than three-phase voltage present, or unequal phase-voltage
magnitudes are occurring.
• After phase rotation is measured, the measured-phase sequence is displayed on the
Metering screen.
Note: The measured System Phase Rotation displayed on the Metering screen
may be different than the Phase Rotation setpoint on the Setup>General>Site-
Related>System>Phase Rotation screen.
• After phase rotation is determined, it is not re-verified unless one of the following
events occur:
• Voltage is lost on both terminals.
• The 5-minute Phase Rotation Reverification Timer expires.
• Any new settings are applied.
For example, the Metering screen display of system-phase rotation may be delayed
five minutes if the terminal-phase associations have changed without a preceding
loss-of-voltage event on both terminals X & Y.
• At power up with all three poles open, and when terminals X & Y have unequal phase-
sequence voltages, the IntelliRupter fault interrupter presumes terminal-X voltage to
be positive sequence.
Phase Rotation
Phase rotation is automatically determined by the Protection and Control module.
Select the 123, 132, or Undefined option. The control will update this after making the
measurement.
Direction 1 / Direction 2
This setting determines the normal current direction. Select the X->Y or Y->X option.
X is the lower terminal and Y is the upper terminal. Directional-overcurrent protection
is set with respect to the circuits named Direction1 and Direction2. When the Direction
1/Direction 2 configuration is X->Y, Direction 1 protection settings are applied to a fault
that flows into the Y terminal and out of the X terminal. See Figures 7, 8, and 9 on page 21.
The IntelliTeam Automatic Restoration System uses the voltage measured on the
terminal configured as Direction 1 to determine the Good-Source Voltage measure-
ment. The Direction 1 terminal must be configured as the terminal that is the normal-
source side of a normally closed IntelliRupter fault interrupter. For a normally open
IntelliRupter fault interrupter with the normal switch function defined as a Tie/Sub, the
Direction 1 terminal must be configured as the terminal on the alternate-source side of
the IntelliRupter fault interrupter. A normally open IntelliRupter fault interrupter with
a normal switch function defined as a Tie may have the Direction 1 terminal configured
as either terminal X or terminal Y.
Label for Direction 1 (6 char limit)
This label associates Direction 1 of the directional-overcurrent protection with the name
of a substation, source, or load. The designation selected should take into consideration
the source may change when the circuit is automatically reconfigured. Directional-
overcurrent protection should be set to protect against faults on circuits connected to
this terminal.
Label for Direction 2 (6 char limit)
This label associates Direction 2 of the directional overcurrent protection with the name
of a substation, source, or load. The designation selected should take into consideration
the source may change when the circuit is automatically reconfigured. Directional-
overcurrent protection should be set to protect against faults on circuits connected to
this terminal.