Here’s what we know:
- Feeders are the backbone of any distribution grid.
- Distribution grids are getting more complex.
- So, modern feeder protection devices must provide dynamic solutions.
- Because a good feeder protection device boosts grid-wide resilience and reliability.
Here’s how we meet the moment: S&C’s IntelliRupter® PulseCloser® Fault Interrupter.
Modernize today and build for tomorrow with this all-in-one smart grid solution.
What Are Your Grid Goals?
At every step in your grid-modernization journey, IntelliRupter® fault interrupter can help.
Click below to explore some of the feeder protection device’s applications. And remember that you can stack your benefits by using IntelliRupter fault interrupter to achieve many goals at the same time.
Improve Feeder Segmentation
Achieve segmentation goals and reduce customers per segment without hassle or limitations.
Learn MoreReroute Power Automatically
Locate and isolate faults and reroute power from an alternate source (FLISR) automatically.
Learn MoreProtect Underground Cables
Avoid cable damage on underground and hybrid circuits with gentler fault testing.
Learn MoreModernize Your Grid Holistically
Use IntelliRupter fault interrupter as the cornerstone of your grid-modernization plans.
Learn MoreView IntelliRupter Fault Interrupter’s Construction and Design
Explore the IntelliRupter fault interrupter’s key features using this 3D product viewer. For instructions, click the Help button.
Extend Equipment Life With Gentler Fault Testing
Using S&C’s proprietary PulseClosing® Technology, IntelliRupter fault interrupter tests for faults using 95% less energy than conventional reclosers.
This creates less stress on grid equipment and can extend the life of some of your system’s most vital components. See the PulseClosing technology difference in this live demonstration video.
How IntelliRupter Fault Interrupter Has Helped Utilities
From adding segmentation to upgrading with FLISR, utilities around the world have boosted their grid-modernization efforts and improved their resilience with IntelliRupter fault interrupter.
Chattanooga, Tennessee
Municipal Utility’s Grid Improves by 50% with Self-Healing Technology
Read Full Case Study
Wisconsin and Iowa
Automation Without Communications Improves Utility’s Reliability
Read Full Case Study
Alberta, Canada
Self-Healing Technology Saves More than 30 Million Customer Minutes
Read Full Case Study
Need Support?
S&C is here to help you through any stage in your grid-modernization journey, from system studies to installation videos. Explore more below.
Product Details
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
- Vacuum interrupters with a unique actuating system that enables PulseClosing® Technology
- Integrated three-phase voltage sensing on both sides of the interrupters
- Integrated three-phase current sensing that provides linear output over the range from load to fault current
- An integrated power module on one or both sides of the interrupters, eliminating the need to install separate power transformers
- Solid dielectric insulation featuring S&C’s Cypoxy™ Insulator, a cycloaliphatic epoxy resin system
- Models with or without integrated visible disconnect
- A choice of integrated controls, all configurable from the safety of your vehicle using a Wi-Fi link to your PC:
- A standard Control Group provides basic protective functionality in standalone applications
- S&C’s IntelliTeam SG Automatic Restoration System support from an IntelliTeam SG Control Group
- Automatic selection of pre-configured protection provides appropriate settings for the source serving the team
- All controls are line-powered, so no voltage transmitter (VT) needed
- All controls are hookstick-replaceable
- Internal circuit-making and circuit-breaking for all-weather reliability (hookstick-operated disconnect with air gap)
- Integrated three-phase voltage and current sensors that eliminate cost, clutter, and complexity of separately mounted sensors
The SDA-4540R3 Control Module now supports:
- IEC 61850 GOOSE Protocol.
- Phasor Measurement Unit. Both P-Class and M-Class supported.
- Rate of Change of Frequency (ROCOF) protection element.
- Directional Transient Active Power (DTAP) and Wattmetric protection elements. For Three-Phase Three-Wire resonantly grounded systems with Rapid Earth Fault Current Limiter (REFCL) compensator systems.
Disconnect Styles♣
| kV | Amperes RMS♣ | |||
|---|---|---|---|---|
| Max | BIL | Continuous | Interrupting Symmetrical | |
| 15.5 | 110 | 800/900 |
16 000 | |
| 27 | 125 | 800/900 |
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. 800 amperes per IEC; 900 amperes with a minimum wind velocity of 2 ft./sec.
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.
Compact Styles
| kV | Amperes RMS | |||
|---|---|---|---|---|
| Max | BIL | Continuous | Interrupting Symmetrical | |
| 15.5 | 95 | 800/900♣ | 16 000 | |
| 27 | 125 | 800/900♣ | 12 500 | |
♣ 800 amperes per IEC; 900 amperes with a minimum wind velocity of 2 ft./sec.
Non-Disconnect Styles♣
| kV | Amperes RMS♣ | |||
|---|---|---|---|---|
| Max | BIL | Continuous | Interrupting Symmetrical | |
| 15.5 | 110 | 800/900 |
16 000 | |
| 27 | 125 | 800/900 |
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. 800 amperes per IEC; 900 amperes with a minimum wind velocity of 2 ft./sec.
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
IntelliRupter® fault interrupters include a base-integrated control that’s accessed for configuration and operation via a secure Wi-Fi link. This innovative approach improves reliability, operator safety, and convenience. It also significantly enhances security compared with the “lock-and-key” approach of most conventional reclosers.
S&C can furnish the control with a wide range of radios that support applications such as SCADA and IntelliTeam® SG Automatic Restoration System. Please see S&C Specification Bulletin 766-31 for more information on the radio options that are supported.
Other options and accessories include:
- Wildlife protection. Reduces wildlife-related nuisance outages
- Bracket-mounted antenna. Extends 4 feet from the base and attaches at either end; includes a 900-MHz, 3-dBd-gain, omni-directional antenna or a 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.
- A 10-year IntelliRupter warranty. Comes in lieu of standard 2-year warranty
- Module handle fitting. Attaches to a hookstick with a universal fitting and permits field installation and removal of the protection and control module and the communication module; includes a prong for operating IntelliRupter fault interrupter levers
- Module stub handle. Permits the installation and removal of the protection and control module and the communication module in your service center or lab (When permitted by utility operating practice, a gloved individual can used the handle to install and remove the modules in the field.)
- Power supply. Powers the protection and control module and the communication module installed in the base in your service center or lab and permits open, close, and test operations using a pulse, pre-installation uploading and downloading of configuration settings, radio programming, and radio-battery charging, as applicable (for indoor use only)
- Docking station. Powers the protection and control module and the communication module removed from the base in your service center or lab and permits pre-installation uploading and downloading of configuration settings, radio programming, and radio-battery charging, as applicable (for indoor use only)
- Spare 12-Vdc, 8-Ampere-Hour Battery Pack. For the communication module
- Battery Charger Output Harness. For connecting the battery pack to an 800-ma, current-limited 12-Vdc lead-acid battery charger
- Detailed Instruction Manual. A binder containing printed copies of all IntelliRupter fault interrupter instruction sheets, erection drawings, and reference drawings