Up to four general profiles can be configured; one is selected for normal use.
IntelliTeam SG software allows selection of an alternate profile for use when the IntelliRupter
fault interrupter is powered from an alternate source. See Instruction Sheets 766-532,
“IntelliRupter® PulseCloser® Fault Interrupter:
IntelliTeam® Automatic Restoration
System Setup,
” and 1044-570, “IntelliTeam® Designer:
User’s Guide,
” for more informa-
tion regarding the setup and confirmation of the IntelliTeam SG system.
A wide variety of features and functions can be selected and configured in the general
profiles, including the following:
Overcurrent Elements—Simultaneous Independent Directional Phase
,
Ground
,
Negative-Sequence
, and
Sensitive Earth Time-Overcurrent
,
Instantaneous-
Overcurrent
, and
Definite-Time
elements are provided.
PulseClosing Operations—
The IntelliRupter fault interrupter can be configured to
test for faults using PulseClosing Technology—a unique, patented means for verifying
the line is clear of faults before initiating a closing operation. It uses precisely timed,
quick close and open operation of the interrupters and analysis of the current pulse to
determine whether a fault is present. A
PulseClosing Technology
operation subjects the
system to a small fraction of the fault energy experienced during conventional reclosing.
If no fault is detected, the device will close. A
PulseClosing Technology
operation can
also be initiated before a regular closing operation from the fully open and locked out
condition to determine whether a fault is present.
Conventional Closing—
The IntelliRupter fault interrupter can be configured to use
a conventional close for any test after the initial fault trip. The “hard” close may be
required to allow a fuse operation after the initial fuse-saving operation. Up to four test
operations can be configured, and each can be a
PulseClosing Technology
operation or
a conventional close. A different inverse curve can be used for each close. Conventional
closing subjects the system to high-impact fault current at each closing operation.
PulseFinding™ Fault Location Technique Operations—
When a fault occurs
downstream of series-connected IntelliRupter fault interrupters that cannot be selectively
coordinated, the devices can be configured so they all trip open. The fault is quickly
located by sequential
PulseClosing Technology
operations, starting at the open device
closest to the source. Each successive downstream device will perform a
PulseClosing
Technology
operation, find no fault and, quickly close. But the device nearest the fault
will perform a
PulseClosing Technology
operation, sense the fault, and stay open.
Intelligent Fuse Saving—
In conventional fuse-saving schemes, the upstream protective
device operates to save the lateral fuse. Intelligent fuse saving configures the IntelliRupter
fault interrupter so when fault current is above the point where the fuse would be faster
than the device, the IntelliRupter fault interrupter operates on a delayed curve so only the
fuse operates to isolate the fault. Customers downstream of the device do not experience
a momentary outage.
Sequence Coordination—
The
Sequence Coordination
element maintains proper
coordination between the IntelliRupter fault interrupter and downstream reclosers. If a
fault is cleared by a downstream recloser, the IntelliRupter fault interrupter will shift to a
slower time-current coordination curve before fault testing by the downstream recloser.
S&C Instruction Sheet 766-530 7
Overview
