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IntelliRupter® PulseCloser® Fault Interrupter

IntelliRupter® PulseCloser® Fault Interrupter

S&C’s IntelliRupter PulseCloser Fault Interrupter is a breakthrough in overhead distribution system protection. It’s a unique alternative to conventional automatic circuit reclosers. IntelliRupter was designed from the ground up to accommodate advanced distribution automation functions, including S&C’s self-healing, scalable IntelliTeam® SG Automatic Restoration System — a universal Smart Grid solution offering unmatched interoperability.

IntelliRupter provides SCADA functionality too. IntelliRupter offers significant benefits for radial line protection. And it provides better segmentation and coordination than conventional reclosers in non-communicating loop restoration applications.


From Old Grid to Smart Grid: The Economic Impact on the Electricity Customer

Features

Fault interruption, fault isolation, and circuit restoration in a single, easy-to-install package

  • Unique PulseClosing Technology™ confirms there’s no fault on the line before initiating point-on-wave closing . . . reduces stress on system components
  • Vacuum interrupters with unique actuating system that enables PulseClosing Technology™.
  • Integrated three-phase voltage sensing on both sides of the interrupters.
  • Integrated three-phase current sensing, providing linear output over the range from load to fault current.
  • Integrated power module on one or both sides of the interrupters. Eliminates need to install separate power transformers.
  • Solid dielectric insulation, featuring S&C’s Cypoxy™ cycloaliphatic epoxy resin system.
  • Models with or without integrated visible disconnect.
  • Choice of integrated controls — all configurable from the safety and security of your vehicle, using WiFi communication link to your PC.
    • Standard Control Group provides basic protective functionality in standalone applications.
    • IntelliTeam® SG Control Group supports S&C’s IntelliTeam SG Automatic Restoration System. During circuit reconfiguration, it automatically selects pre-configured protection settings appropriate for the source serving the team.
    • All controls are line-powered—no VT needed.
    • All controls are hookstick-replaceable.
  • Internal circuit-making and circuit-breaking for all-weather reliability. Hookstick-operated disconnect provides visible air gap.
  • Integrated three-phase voltage and current sensors eliminate cost, clutter, and complexity of separately mounted sensors.

 

How It Works

After clearing a fault, a conventional recloser tests the line through uncontrolled closing — repeatedly applying damaging fault current to equipment from the source to the fault. But IntelliRupter utilizes S&C’s revolutionary PulseClosing Technology™ — a unique means for verifying that the line is clear of faults before initiating a close operation. PulseClosing greatly reduces stress on system components, as well as voltage sags experienced by customers upstream of the fault.

The videos below capture a laboratory demonstration of the IntelliRupter PulseCloser Fault Interrupter responding to a permanent phase-to-phase fault. IntelliRupter is configured in two different ways. First, the IntelliRupter is configured to behave similar to a conventional recloser, and can be viewed in both regular speed and slow motion. Then, regular speed and slow motion videos show how IntelliRupter responds to the identical fault event when it is configured to test the line for faults using pulseclosing. Note the dramatic reduction in arcing produced by using pulseclosing instead of simply closing into the fault. Each delayed recloser operation results in 10 cycles of fault current, while each pulse results in only 5 ms of reduced magnitude fault current. Since the fault is permanent, the end state is lockout for both configurations.

Videos can be played in place or full-screen by clicking the icon.

IntelliRupter Configured for Conventional Reclosing

Reclose — Normal Speed

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Reclose — Slow Motion

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IntelliRupter Configured for Conventional Reclosing
•  7,000 ampere permanent phase-to-phase fault
•  Two fast and two delayed operations
•  Open interval times: 2, 5, 10 seconds

IntelliRupter Configured for PulseClosing

PulseClose — Normal Speed

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PulseClose — Slow Motion

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IntelliRupter Configured for PulseClosing
•  7,000 ampere permanent phase-to-phase fault
•  Initial trip plus 3 pulseclose operations
•  Open interval times: 2, 5, 10 seconds

Loop Restoration Applications

IntelliRupter’s PulseClosing Technology is especially beneficial in loop restoration applications. View the video below to learn more about this application.

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Overhead Ratings

Non-Disconnect Styles

kV Amperes
Max BIL Cont. Interr.
15.5 110 630/800 16 000
27 125 630/800 12 500
38 170 630/800 12 500

Each IntelliRupter includes as standard an Integrated Power Module fed from one phase on one side of the switch. An Integrated Power Module fed from one phase on each side of the switch is optionally available.
630 amperes per IEC; 800 amperes with a minimum wind velocity of 2 ft./sec.

 

Disconnect Styles

kV Amperes
Max BIL Cont. Interr.
15.5 110 630/800 16 000
27 125 630/800 12 500
38 170 630/800 12 500

Each IntelliRupter includes as standard an Integrated Power Module fed from one phase on one side of the switch. An Integrated Power Module fed from one phase on each side of the switch is optionally available.
630 amperes per IEC; 800 amperes with a minimum wind velocity of 2 ft./sec.

 

Underground Ratings

Non-Disconnect Styles

kV Amperes
Max BIL Cont. Interr.
15.5 95 630 16 000
27 125 630 12 500

Each IntelliRupter includes as standard a choice of one integral power module, which derives necessary control power from phase on one side of the switch, or an external power supply, for use when user-provided control power is available. See S&C instruction 766-510 for available input ranges. An Integrated Power Module fed from one phase on each side of the switch is optionally available.

 

Disconnect Styles

kV Amperes
Max BIL Cont. Interr.
15.5 95 630 16 000
27 125 630 12 500

Each IntelliRupter includes as standard a choice of one integral power module, which derives necessary control power from phase on one side of the switch, or an external power supply, for use when user-provided control power is available. See S&C instruction 766-510 for available input ranges. An Integrated Power Module fed from one phase on each side of the switch is optionally available.

Installation Styles

For Overhead Systems

  • Non-Disconnect Style IntelliRupter PulseCloser Fault Interrupter
  • Non-Disconnect Compact-Crossarm Style IntelliRupter PulseCloser Fault Interrupter
  • Disconnect Style IntelliRupter PulseCloser Fault Interrupter

For Underground Systems

  • Pad-Mounted Style IntelliRupter PulseCloser Fault Interrupter

 

Compact-Crossarm Style
Pad-Mount IntelliRupter

Options and Accessories

IntelliRupter includes a base-integrated control that’s accessed for configuration and operation via a secure WiFi link. This innovative approach improves reliability, operator safety, and convenience, and significantly enhances security compared to the “lock-and-key” approach of most conventional reclosers. The control can be furnished with a wide range of radios, including S&C’s SpeedNet™ Radio. SpeedNet Radio greatly enhances IntelliTeam SG restoration speed. It combines extremely secure long-range communication, high-volume data transmission, and flexible mesh networking to provide benchmark performance for unlicensed radio networks.

  • Wildlife protection. Reduces wildlife-related nuisance outages.
  • Bracket-mounted antenna. Extends four feet from the base; attaches at either end. Includes 900-MHz, 3-dBd-gain, omni-directional antenna, or 900-MHz, 9-dBd gain, directional Yagi antenna, plus cable and hardware. Also available: bracket only.
  • Joslyn Zforce Type ZHP (Heavy Duty) polymer-housed metal-oxide surge arresters. Factory-installed and wired.
  • International Crating. Features hardwood or certified heat-treated wood products.
  • Ten-year IntelliRupter warranty in lieu of standard two-year warranty.
  • Module handle fitting. Attaches to hookstick with universal fitting. Permits field installation and removal of protection and control module, and communication module. Includes prong for operating IntelliRupter levers.
  • Module stub handle. Permits installation and removal of protection and control module, and communication module—in your service center or lab. When permitted by utility operating practice, can be used by a gloved individual to install and remove modules in the field.
  • WiFi tester. Simulates connection to communication module. Confirms your laptop computer can establish secure WiFi connection to IntelliRupter. Also demonstrates use of WiFi security keys. For indoor use only.
  • Power supply. Powers protection and control module, and communication module, installed in the base, in your service center or lab. Permits open, close, and pulseclose test operations, pre-installation uploading and downloading of configuration settings, programming of radio, and charging of radio batteries, as applicable. For indoor use only.
  • Docking station. Powers protection and control module and communication module, removed from the base, in your service center or lab. Permits pre-installation uploading and downloading of configuration settings, programming of radio, and charging of radio batteries, as applicable. For indoor use only.
  • SEL AutoRANGER™ Model AR8-OH Faulted Circuit Indicators, set of three.
  • Spare 12-Vdc, 8-Ampere-Hour Battery Pack for communication module.
  • Battery Charger Output Harness. For connecting battery pack to an 800-ma, current-limited 12-Vdc lead-acid battery charger.
  • Detailed Instruction Manual. Binder containing printed copies of all IntelliRupter instruction sheets, erection drawings, and reference drawings.