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IntelliTEAM II® Automatic Restoration System

Description

Using peer-to-peer communication with distributed intelligence, IntelliTEAM II tracks system conditions and quickly initiates service restoration. It works with S&C’s revolutionary IntelliRupter® PulseCloser as well as 5800 Series Automatic Switch Controls operating overhead and underground distribution switches, to improve service reliability for critical areas of your distribution system. And IntelliTEAM II can be expanded to serve entire regions of your system. It requires no central monitoring or SCADA control, though SCADA is fully supported.
With IntelliTEAM II, restoration proceeds without the delays inherent in dispatcher-operated or centrally controlled systems. It monitors real-time current and voltage throughout the system and uses this data to make smart switching decisions, acting locally before breakers or reclosers lock out.
IntelliTEAM II’s sophisticated operating logic can automatically restore service under multiple-event contingencies. During storms or major outages, it quickly returns service to as many customers as possible, freeing your personnel to deal with system repairs. IntelliTEAM II minimizes “Customer Minutes of Interruption,” improving your reliability ratings.

Easily Implemented

IntelliTEAM II provides out-of-the-box automatic restoration functions. It’s the quickest, easiest, most cost-effective way to improve service reliability.

Fully Scalable

IntelliTEAM II supports complex systems of virtually any size and accommodates tie points from multiple sources. It can handle as many teams of switches as line loading will allow. Each team can have up to eight switches. Switches can be arranged in radial circuits, looped circuits, or a combination of both.

Maximizes System Efficiency

Restoration capacity is based on real-time loading and actual feeder capacity, not often- outdated historical loading data. Your circuits can be routinely loaded higher . . . IntelliTEAM II prevents overloading during restoration. The excess capacity of adjacent sources is used to restore service to unfaulted segments, helping defer the need for system upgrades and allowing you to tie circuits that traditional planning criteria wouldn’t permit.

You’re in Control

IntelliTEAM II gives you the flexibility to select restoration strategies. You’re assured that system planning criteria are observed and that critical users get the highest priority.

Designed With Your Line Technicians in Mind

IntelliTEAM II utilizes multiple blocking points to prevent automatic operation when your crews are working on the line.

How IntelliTEAM II Works

Each “team” is a line segment bounded by up to eight switches, each of which can represent a different power source. The software “coach” continually monitors real-time voltage and current at each team member and shares this information with coaches of adjacent teams.
When an outage or line fault occurs, the coach of each affected team uses real-time data, plus voltage and current prior to the event, to develop a restoration strategy. Coaches work together to implement plays that maximize restoration—always within the prioritization rules you’ve defined.

IntelliTEAM II Operating Principles Are Simple:

  • Each team’s mission is to maintain power on its line segment, using the normal power source if possible.
  • Each team communicates with neighboring teams through switch controls they share in common. The excess capacity of a neighboring team is a possible restoration source that’s available at the shared switch.
  • If the normal source power is lost, the team evaluates the excess capacity of all alternate sources and transfers the load to the first available source with sufficient capacity. The alternate source can be more than one team away; inter-team data exchange ensures sharing of excess capacity and coordination of all restoration decisions. If desired, you can prioritize the order in which alternate sources are specified.
  • When normal power has been restored or the fault has been corrected, the system returns to its normal configuration, either manually, automatically, or via SCADA control.
  • If another event takes place after the team has transferred to an alternate source, the team will seek another alternate source to keep its line segment energized. The ability to respond to multiple contingencies makes IntelliTEAM II a much more effective tool than other systems. Each coach maintains excess-capacity statistics on adjacent teams that it can use to dynamically prioritize the restoration strategy.
  • The example above (image) shows how IntelliTEAM II responds to a faulted segment. All switches in the affected team experience an overcurrent followed by loss of voltage. All switches in the team open to isolate the fault. Then service is restored to all unfaulted segments . . . in less than one minute!
  • IntelliTEAM II can accommodate virtually any breaker reclosing sequence, provided that there is at least one time-delayed sequence before lockout. Each switch closure is qualified based on pre-fault loading, and each team’s capacity for transfer is correspondingly adjusted as load is restored.