S&C IntelliRupter ® PulseCloser® Fault Interrupter

Outdoor Distribution, 15.5 kV through 38 kV

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IntelliRupter® PulseCloser® Fault Interrupter—Tomorrow’s Technology Available Today

S&C’s IntelliRupter PulseCloser Fault Interrupter is a breakthrough in overhead and underground distribution system protection. This unitized package of fault-interrupting and control components can operate as a stand-alone fault interrupter or, with appropriate options, can be integrated into a SCADA system and/or an S&C IntelliTeam® SG Automatic Restoration System.

IntelliRupter fault-interrupting devices feature S&C’s revolutionary PulseClosing® Technology—a unique means for verifying that the line is clear of faults before initiating a close operation. PulseClosing Technology is superior to conventional reclosing. It greatly reduces stress on system components, as well as voltage sags experienced by customers upstream of the fault.

Overhead System ApplicationsIntelliRupter® fault interrupters provide outstanding protection on overhead systems through 38 kV. They are available in upright-crossarm and compact-crossarm mounting configuration models, with or without an integrated, hookstick-operated disconnect for visible air-gap isolation of switched-open circuits. See Figure 1.

IntelliRupter fault interrupters provide full live-switching performance under all ice conditions … circuit making, circuit breaking, and advanced fault interrupting are accomplished within the interrupters. There are no external moving parts.

On disconnect-equipped models, the disconnect is interlocked with the interrupters to ensure they are open prior to opening or closing the disconnect. The interrupting devices may be operated with the disconnect in either position. A status point is provided for remote monitoring of disconnect position.

IntelliRupter fault interrupters are factory-assembled on a stainless-steel base and include:

■ Three-pole vacuum interrupters rated 630 amperes continuous, 16,000 amperes interrupting at 15 kV, and 12,500 amperes interrupting at 27 kV and 38 kV. A continuous current rating of 800 amperes applies with a 2 ft./sec. wind, similar to conductor ratings.

■ Unique magnetic latching actuators for the interrupters, providing single-phase tripping/ single-phase lockout, single-phase tripping/ three-phase lockout, or three-phase tripping/three-phase lockout. Interrupters can be manually tripped by means of a manual lever, operable from the ground with an extendostick.

■ High-accuracy sensors, for three-phase monitoring of line current and three-phase monitoring of line voltage on both sides of the interrupters. Sensing accuracy is ±0.5% for both voltage and current. Total system accuracy for fault detection, including sensing, control, and interrupting time is ±2%.

■ One or two integral power modules, which derive energy directly from the distribution line. Control power can alternately be derived from an external power supply.

■ Open/close indicator for each phase.

■ External power supply connector. Permits pre-installation uploading and downloading of configuration settings, plus radio programming and battery charging, as applicable, indoors in your service center or lab.

■ Manually actuated OPEN/CLOSE/READY lever, operable from the ground with an extendostick.

■ Manually actuated ground trip blocking lever, operable from the ground with an extendostick.

■ Manually actuated hot-line tag lever to enable or disable a hot line tag or disable an electronically set hot line tag, operable from the ground with an extendostick.

■ Control group, featuring a hookstick-removable protection and control module and communication module, mounted in the base. It’s easily configured from the safety and security of your vehicle parked near the base of the pole, using a secure Wi-Fi communication link to a laptop computer.

■ Unique multi-function status indicator. Shows that the control group is operating normally. Blink rate changes when Wi-Fi connection is made, control power is lost, or position of OPEN/CLOSE/READY lever is changed. Separate hot line tag indicator shows a “set” tag.

■ Integrated Global Positioning System. Provides 1-ms accurate time-stamping of events to speed post-event analysis, as well as IntelliRupter fault interrupter location data for entry into your graphical information system.

■ Provisions for three surge arresters on each side of IntelliRupter fault interrupters. Factory-installed and wired MacLean Power Systems Zforce™ Type ZHP (Heavy Duty) polymer-housed metal-oxide surge arresters are optionally available.

■ Single-point lifting means, for convenient rigging and hoisting during installation.

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Figure 1. Top: A Disconnect-Style IntelliRupter PulseCloser Fault Interrupter in the upright-crossarm mounting configuration.

Bottom: Non-Disconnect Style IntelliRupter PulseCloser Fault Interrupter in the upright-crossarm mounting configuration.

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Underground System ApplicationsPad-Mounted Style IntelliRupter fault interrupters provide full live-switching performance on underground systems through 27 kV. Circuit making, circuit breaking, and use of a pulse of current to detect the presence of a fault are accomplished within the interrupters. The factory-assembled, freestanding, self-supporting enclosure meets the requirements of ANSI C57.12.28 for enclosure integrity and includes provisions for cable entrance and exit through the bottom. See Figure 2.

Pad-Mounted Style IntelliRupter fault interrupters are available with or without an integrated disconnect for visible air-gap isolation of switched-open circuits. The interrupters may be operated with the disconnect in either position. A status point is provided for remote monitoring of disconnect position.

Pad-Mounted Style IntelliRupter fault interrupters feature:

■ Three-pole vacuum interrupters rated 630 A continuous, 16,000 A interrupting at 15 kV, and 12,500 A interrupting at 27 kV.

■ Unique magnetic latching actuators for the interrupters, providing single-phase tripping/single-phase lockout, single-phase tripping/three-phase lockout, or three-phase tripping/three-phase lockout. Interrupters can be manually tripped by means of a manual OPEN/CLOSE/READY lever.

■ High-accuracy sensors, for three-phase monitoring of line current and three-phase monitoring of line voltage on both sides of the interrupters. Sensing accuracy is ±0.5% for both voltage and current. Total system accuracy for fault detection, including sensing, control, and interrupting time is ±2%.

■ Choice of an integral power module, which derives energy directly from the distribution feeder, or an external power supply for use with user-furnished control power.

■ Open/close indicator for each phase.

■ External power supply connector. Permits pre-installation uploading and downloading of configuration settings, plus radio programming and battery charging, as applicable, indoors in your service center or lab.

■ Manually actuated OPEN/CLOSE/READY lever.

■ Manually actuated GROUND TRIP BLOCK toggle switch.

■ Manually actuated HOT-LINE TAG toggle switch to enable or disable a hot line tag or disable an electronically set hot line tag.

■ Control group, featuring a protection and control module and communication module, mounted in the low-voltage compartment. It’s easily configured from the safety and security of your vehicle parked near the Pad-Mounted Style IntelliRupter fault interrupter, using a secure Wi-Fi communication link to a laptop computer. The modules can be easily removed using the module stub handle furnished.

■ Unique multi-function status indicator. Shows that the control group is operating normally. Blink rate changes when Wi-Fi connection is made, control power is lost, or the position of the OPEN/CLOSE/READY lever is changed. A separate HOT LINE TAG indicator shows a “set” tag.

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■ Integrated Global Positioning System. Provides 1-ms accurate time-stamping of events to speed post-event analysis, as well as Pad-Mounted Style IntelliRupter fault interrupter location data for entry into your graphical information system.

■ Controlled access to enclosure compartments. S&C’s Penta-Latch® Mechanism provides automatic door latching and permits padlocking only when the door is securely latched. Doors can only be opened with a pentahead socket wrench or tool.

■ Long-lasting enclosure protection. The enclosure is protected from corrosion by S&C’s Ultradur® Finishing System. The roof is undercoated with an insulating “no-drip” compound. A resilient closed-cell gasket on the enclosure bottom flange protects the finish from being scratched during installation, and isolates it from the alkalinity of a concrete foundation.

■ Terminals equipped with 600-ampere bushings (with studs). Bushing interfaces are in accordance with ANSI/IEEE Standard 386 and accept all standard separable insulated

connectors. Parking stands are provided adjacent to each bushing. Grounding provisions, suitable for use with separable insulated connectors and related accessories, are located in the termination compartment.

■ Hinged roof section over the cable-termination compartment, allowing easy cable pulling during installation.

The cable-termination compartment accommodates either single 600-ampere deadbreak connectors equipped with elbow-style surge arresters, or two stacked 600-ampere deadbreak connectors without elbow-style surge arresters.

Elbow-style surge arresters are required on both sides of Pad-Mounted Style IntelliRupter fault interrupters when installed on a feeder to protect it from surges beyond its ratings. When installed in a substation or at the base of a riser/dip pole, surge arresters are only required on the load side of Pad-Mounted Style IntelliRupter fault interrupters.

Figure 2. A Pad-Mounted Style IntelliRupter PulseCloser Fault Interrupter.

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4,000,000

3,000,000

2,000,000

1,000,000

0

Pulseclosing

Am

per

e2—

Sec

on

ds

5,000,000

0 2,000 4,000 6,000 8,000 10,000

ConventionalReclosing

Current, Amperes

Figure 4. Relative let-through energy for a typical 5-kA fault.

Current versus time—conventional recloser—fault from phase wire to grounded neutral

Figure 3. PulseClosing Technology drastically reduces overcurrent stress on the system, as shown here for a permanent phase-wire to grounded-neutral fault.

Current versus time—lntelliRupter PulseCloser Fault Interrupter—fault from phase wire to grounded neutral

Fault Testing with a PULSE . . . Instead of a BANG!Conventional reclosers stress the circuit with fault current every time they reclose into a fault. But after IntelliRupter fault interrupter interrupts a fault, it uses PulseClosing Technology to intelligently test for fault current before closing.

The oscillograms in Figure 3 show the remarkable difference in current versus time during fault testing with a conventional recloser and an IntelliRupter fault interrupter.

The relative let-through energy, in I2t, of an operation using PulseClosing Technology is typically less than 5% of a conventional reclosing operation, as shown in Figure 4.

For more information on PulseClosing Technology, see “Applications Assessment Of PulseClosing Technology” on S&C’s website, at: sandc.com/applicationassessment

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Second PulseClose operationInitial trip

First PulseClose operation

Innovative Technology Is the Key After clearing a fault, a conventional recloser simply recloses the interrupters to test for continued presence of the fault. If the fault is still there, the interrupters are tripped again. Then, after a time delay, the interrupters are reclosed. With each reclosing operation, even the fastest recloser feeds a significant amount of energy into the fault, resulting in system-damaging stress and voltage sags.

Figure 5 shows how a conventional recloser operates in response to a permanent single-phase-to-ground fault. The uncontrolled closing often results in asymmetric fault current, significantly increasing peak energy into the fault.

But after an IntelliRupter fault interrupter clears a fault, it tests for continued presence of the fault using S&C’s advanced magnetic actuator design, coupled with unique PulseClosing Technology. IntelliRupter fault interrupters intelligently close at a precise point on the voltage wave, resulting in a short pulse that’s less than half the symmetrical fault current.

Figure 6 shows how IntelliRupter fault interrupters operate in response to a permanent single-phase-to-ground fault, with a typical current pulse of just 5 milliseconds.

With IntelliRupter fault interrupters, your system only experiences overcurrent stress from the initial fault—not from every reclosing operation. Component life is extended, eliminating costly replacement. PulseClosing Technology also dramatically reduces through-faults … a leading cause of premature aging of substation transformers. And power quality is improved since use of PulseClosing Technology doesn’t disturb source-side customers with irritating voltage sags and blinks.

Fully Compatible with IntelliTeam® SG Automatic Restoration SystemIntelliRupter fault interrupters can take full advantage of S&C’s IntelliTeam SG Automatic Restoration System.

IntelliTeam SG is the latest generation of S&C’s field-proven automatic restoration system. Its Rapid Self-Healing feature accomplishes restoration in seconds.

The IntelliTeam SG system includes a setup tool—IntelliTeam® Designer—which greatly simplifies configuration and deployment.

The IntelliTeam SG system uses all available alternate sources to restore unfaulted line segments, without overloading any part of the system. The system minimizes the number of customers experiencing an extended power interruption, tremendously improving your system.

Average Interruption Duration Index. IntelliTeam SG can handle multiple contingencies, too.

Figure 5. Conventional reclosing in response to a permanent fault.

Figure 6. Response to a permanent fault with PulseClosing Technology. The opposite-polarity pulse detects magnetizing inrush current; if the transformer is not faulted, IntelliRupter fault interrupter closes.

First reclose operation

Second reclose operationInitial trip

For more information on the IntelliTeam® SG Automatic Restoration System, see S&C Descriptive Bulletin 1044-34 on S&C’s website, at: sandc.com/1044-34

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Enhanced Performance in Loop Restoration Applications IntelliRupter fault interrupters enhance the performance of existing loop-restoration schemes using conventional reclosers. They eliminate the need to subject the alternate circuit in the loop to a fault when closing the tie. Just replace the recloser in the tie position with an IntelliRupter fault interrupter to take advantage of PulseClosing Technology.

Even greater benefits can be achieved in loop schemes where all protective points use IntelliRupter fault interrupters. The device’s fast interrupters and accurate sensing and control enable significant reductions in protection margins. With the negligible effect PulseClosing Technology has on source-side customers, the system can be segmented as needed without sacrificing protection.

And with IntelliRupter fault interrupters protecting the loop, customers won’t experience voltage sags on their good circuit during testing of a faulted circuit!

Complaints and costly claims will be greatly reduced.

Improved ReliabilityIntelliRupter fault interrupters improve reliability on both loop and radial circuits by overcoming the limits of conventional coordination methods. Series-connected IntelliRupter fault-interrupting devices can be configured so that after one device opens to isolate a fault, those downstream with the same settings also open.

When power returns, the IntelliRupter fault interrupters use the PulseFinding™ Fault Location Technique to restore service. This technique automatically recovers from situations where an upstream device overreaches or otherwise miscoordinates with a downstream device. Here’s an example:

The feeder in Figure 7 includes a recloser, A1, and an IntelliRupter fault interrupter, A2. Due to tight or improper coordination, both devices trip in response to a fault downstream of the IntelliRupter Fault Interrupter.

Figure 7. PulseFinding™ Fault Location Technique with an upstream recloser.

When the recloser closes, in the next step of its operating sequence, it won’t see the fault. So it remains closed. IntelliRupter fault interrupters, upon sensing return of voltage, use a pulse of current to detect the presence of a fault. The pulses are too short to initiate time-overcurrent timing of the recloser, so the recloser won’t trip.

If the fault is no longer present during the pulsing sequence, the IntelliRupter fault interrupter closes. The system is fully restored.

If, however, the fault persists, the IntelliRupter fault interrupter locks out. But service is restored to customers served from the feeder section between the recloser and IntelliRupter fault interrupter. Those customers only experience a momentary outage from tripping of the recloser.

If A2 were a recloser instead of an IntelliRupter fault interrupter, the system wouldn’t be able to recover from the miscoordination between A1 and A2 because each reclose operation puts full fault current on the system. Both devices would again time and trip. Ultimately, A1 would lock out.

With the IntelliRupter fault interrupter, more series-connected protective devices can be applied for better sectionalization. Each uses a pulse, in turn, to verify that its line segment is unfaulted, and then closes to restore service. Only the IntelliRupter fault interrupter closest to the fault locks out. IntelliRupter fault interrupters never close into a fault. Cold-load inrush is mitigated because only one line segment is energized with each closing. IntelliRupter fault interrupters don’t need to communicate with each other to take advantage of this enhanced coordination and inrush mitigation.

For more information on the enhanced performance and improved reliability provided by IntelliRupter fault interrupter, see “Advancing the State of Looped Distribution Feeders” on S&C’s website, at: sandc.com/766-T83

A New Concept in ControlsIntelliRupter fault interrupters are available with several kinds of control groups. Each offers easy configuration and operation—and examination of waveforms and events—using secure wireless communication to a nearby laptop computer.

The control group includes a protection and control module and a communication module. See Figure 8. This flexible, low-maintenance arrangement offers excellent immunity to surges and noise induced by normal power-line events, such as faults and lightning strikes, and—in the case of IntelliRupter fault interrupters for overhead system applications—minimizes pole clutter. IntelliRupter fault interrupters are powered from the distribution line through the integral power module(s) or the external power supply, if furnished.

The protection and control module provides point-on-wave closing to minimize asymmetric fault current and inrush current. It features a complete set of protection and control functions, including:

■ Simultaneous independent directional phase ground, negative-sequence, and sensitive-earth

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time-overcurrent, instantaneous-overcurrent, and definite-time elements

■ Directional blocking of overcurrent elements

■ Over/under voltage elements

■ Over/under frequency elements

■ Phase unbalance detection

■ Synchronization check

■ Cold-load pickup modifier

Comprehensive diagnostics are included, too.

A 20-channel GPS chip set provides 1-ms accurate time-stamping of events to speed post-event analysis, as well as IntelliRupter fault interrupter location data for your graphical information system.

Select the control group that meets your needs:

■ Standard Control Group. This control group is ideal for:

▶ IntelliTeam SG Automatic Restoration System applications. Teams use peer-to-peer communication, real-time data, and distributed intelligence to make automatic operating decisions. No central processing or SCADA is required, though fully supported. Each IntelliRupter fault interrupter must be furnished with an S&C SpeedNet™ Radio or other approved communication device.

▶ Automatic source-transfer applications using two IntelliRupter fault interrupters. The IntelliRupter fault interrupters ensure a high degree of critical-load continuity by minimizing interruptions resulting from loss of a source. For high-speed automatic source transfer, each

IntelliRupter fault interrupter must be furnished with an S&C SpeedNet Radio or other approved communication device. Non-communicating IntelliRupter fault interrupters can also perform automatic source transfer using PulseClosing Technology.

▶ Automatic loop-restoration applications using normally closed IntelliRupter fault interrupters or conventional reclosers, with a normally open IntelliRupter fault interrupter switching point. The feeder on either side of the switching point can be fed from a different source. If a fault occurs on either feeder, the normally closed devices in that feeder open, then test the circuit using PulseClosing Technology (or reclosing) sequentially to sectionalize and isolate the fault. Service is automatically restored to unfaulted line segments by closing the normally open IntelliRupter fault interrupter.

▶ Intelligent fuse-saving applications. The IntelliRupter fault interrupter improves upon conventional fuse saving techniques. Based on fault current magnitude, an IntelliRupter fault interrupter automatically determines whether a fuse-saving “fast” trip should be used. At high fault currents, a fast trip isn’t used, thus reducing momentary disturbances on the feeder.

▶ Wide-area SCADA applications. Each IntelliRupter fault interrupter must be furnished with an S&C SpeedNet Radio or other approved communication device.

▶ Stand-alone (non-communicating) applications.

Figure 8. Control group includes protection and control module and communication module.

Communication Module

Protection and Control Module

HOT-LINE TAG Indicator (amber LED)

Flashes for ½ second every 2 seconds: Hot line tag applied

Off: All hot line tags removed

Status Indicator (white LED)Flashes for ½ second every 30 seconds: Normal operation

Pulsates dim to bright: Wi-Fi connected

On 10 seconds, then flashes for ½ second every 30 seconds: Wi-Fi disconnected. Or Open/Close command from interrupter OPEN/

CLOSE READY lever, Wi-Fi, or SCADA

On ½ second every second: Settings mismatch or error condition

Off: IntelliRupter fault interrupter not powered or not functioning properly

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Easy Up—Easy OnIntelliRupter fault interrupter is totally self-contained … an especially important consideration in overhead system applications. All major components—including sensors, control group, surge arresters, control power, and disconnect (on disconnect style models)—are included on the IntelliRupter fault interrupter base and go up in one easy, single-point lift. See Figure 9.

Figure 9. Typical Disconnect Style IntelliRupter fault interrupter installation. Includes optional wildlife- protection feature.

Just mount an IntelliRupter fault interrupter on the utility pole and make a single ground connection to the base. Then screw the antenna for the wide-area network radio onto a connector on the base. Connect the high-voltage lines, and you’re done!

The IntelliRupter fault interrupter features embedded current and voltage sensors that eliminate the cost, clutter, and complexity of separately mounted sensors. There’s no control enclosure or control cable to install, either. Because the IntelliRupter fault interrupter is directly powered from the line, there’s no external potential transformer to install, no grounding issues to worry about.

IntelliRupter fault interrupter installation typically takes about two hours … or as little as one hour after your crews get experienced.

Approved communication devices permit configuration, operation, interrogation, and software maintenance of IntelliRupter fault interrupter from any location having access to the communication system, using IntelliLink® Remote Setup Software.

No batteries are required for stand-alone applications and applications with operating times of 30 seconds or less; ac line voltage must be available on the IntelliRupter fault interrupter side with the integral power module, or control power must be available from the external power supply, if furnished.

The standard control group includes IntelliTeam® SG Bronze-level software allows multiple IntelliRupter fault interrupters to be used in two source-restoration systems. When furnished with optional IntelliTeam SG Gold-level software, the standard control group software allows multiple IntelliRupter fault interrupters to be used in applications with three or more sources. IntelliTeam Designer configuration and license-management software unlocks IntelliTeam SG software, making setup fast and easy.

■ Standard Control Group with Battery Backup. This control group is suitable for the same applications as the standard control group. It additionally includes batteries which support operation for a minimum of four hours after loss of ac line voltage on both sides of IntelliRupter fault interrupter, permitting extended dead-line switching.

■ Universal Control Group. This control group is suitable for the same applications as the standard control group with battery backup. It additionally includes either IntelliTeam SG Gold-level software and IntelliTeam Designer configuration and license-management software or an IntelliTeam® II Automatic Restoration System software license. When the former is specified, the universal control group may be used in IntelliTeam SG applications with three or more sources. When the latter is specified, the universal control group is suitable for IntelliTeam II applications.

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Figure 11. An IntelliRupter fault interrupter has no external control or sensor cables.

Figure 12. A conventional recloser has many external control and sensor cables.

Compare the clean-looking IntelliRupter fault interrupter installation with that of a conventional recloser. See Figure 10. The photos really tell the story.

Figure 10. A typical conventional recloser installation.

Control cables are vulnerable to damage from ice, rodents, and vandals. And sensor cables increase exposure to damage from lightning and power surges, and complicate grounding.

IntelliRupter fault interrupter eliminates these potential problems. It doesn’t have any external control or sensor cables!

Compare the cable-less IntelliRupter fault interrupter in Figure 11 with the many-cabled conventional recloser in Figure 12.

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Easy OperationThe control group is easy to configure before installation. And it’s just as easy to configure after installation, from the security of your vehicle parked up to 150 feet away, as shown in Figure 13. Just establish the secure Wi-Fi connection using your laptop computer and you’re ready to go.

The Wi-Fi transceiver in the communication module provides encrypted wireless point-to-point communication to your PC operating under the IEEE 802.11b standard. Extensive security features prevent unauthorized access. You can open and close lntelliRupter fault interrupter, set hot-line tags, and change protection profiles using the simple operation screens. See Figure 14.

Detailed logs, oscillography data, and other operational information can be readily accessed and transferred over the wireless link. Software upgrades too. And if an S&C SpeedNet Radio or other approved wide-area network radio has been furnished—and it supports configuration through its serial port—it can be configured through the wireless link as well.

When IntelliRupter fault interrupter is set for remote operation, your dispatcher can test its electrical operation, as well as the entire SCADA control path, including communication.

Figure 14. IntelliRupter fault interrupter operation screen.

Figure 13. IntelliRupter fault interrupter control group is configured and operated using a secure Wi-Fi communication link.

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If a PC isn’t available, an IntelliRupter fault interrupter can be opened and closed and hot-line tags set using a hookstick from the ground or a bucket truck, as shown in Figure 15.

Should module replacement ever be necessary, it’s easily performed as well, as shown in Figure 16. There’s no need to reconfigure an IntelliRupter fault interrupter … a memory module in the base remembers all the settings.

Figure 15. An IntelliRupter fault interrupter can be opened and closed and hot-line tags set using a hookstick.

Figure 16. A protection and control module and communication module are easy to change out, if replacement is ever necessary.

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Construction of IntelliRupter Fault Interrupters for Overhead System Applications

60-Hertz RatingskV Amperes, RMS

Minimum Maximum BIL Continuous Interrupting, Symmetrical

11.43 15.5 110

630★

16 000

18.81 27 125 12 500

23.8 38 170 12 500

★ 800 amperes with a minimum wind velocity of 2 ft/sec.

AIntegrated voltage sensors on both sides of lntelliRupter fault interrupter provide highly accurate sensing across entire temperature range. Integrated current sensors provide extremely flat response, from low-level load currents through fault current levels, ensuring reliable measurements critical for system analysis. Sensors are molded into interrupter housings for all-weather durability.

B Integrated pole-mounting bracket is designed for easy installation; prevents tilting.

CIntegral power module is fed from one side of an lntelliRupter fault interrupter or, optionally, two integral power modules are fed from a different phase on both sides to maximize availability of control power. This eliminates cost and complexity of separately mounted control power transformers.

D Integrated disconnect provides visible air gap isolation for dead-line work and facilitates operational testing. Mechanically interlocked with interrupters.

E Optional factory-installed and wired surge arresters on both sides of an lntelliRupter fault interrupter. Simplifies installation. See Figure 26.

F HOT-LINE TAG lever. See Figure 23.

G GROUND-TRIP BLOCK lever. See Figure 24.

H Disconnect OPEN/CLOSE lever. See Figure 22.

I Interrupter OPEN/CLOSE/READY lever. See Figure 20.

J Control group features hookstick-removable protection and control module and communication module. Multi-function status light indicates control group is operating normally. Hot-line tag light indicates “set” tag. See Figure 8.

K Stainless steel base provides outstanding corrosion-resistance, even in the harshest environments.

L Interrupter OPEN/CLOSED indicator. See Figure 21.

Figure 17. A Disconnect-Style IntelliRupter fault interrupter in upright-crossarm mounting configuration, rated 15.5 kV maximum.

BC

I

A

HF

D

E

J K L

G

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AIntegrated voltage sensors on both sides of an IntelliRupter fault interrupter provide highly accurate sensing across the entire temperature range. Integrated current sensors provide extremely flat response, from low-level load currents through fault current levels, ensuring reliable measurements critical for system analysis. Sensors are molded into interrupter hous-ings for all-weather durability.

B Integrated pole mounting bracket is designed for easy installation; prevents tilting.

CIntegral power module is fed from one side of an lntelliRupter fault interrupter or, optionally, two integral power modules are fed from a different phase on both sides to maximize availability of control power. Eliminates cost and complexity of separately mounted control power transformers.

E Optional factory-installed and wired surge arresters on both sides of an lntelliRupter fault interrupter. Simplifies installation. See Figure 26.

F HOT-LINE TAG lever. See Figure 23.

G GROUND-TRIP BLOCK lever. See Figure 24.

I Interrupter OPEN/CLOSE/READY lever. See Figure 20.

J Control group features hookstick-removable protection and control module and communication module. Multi-function status light indicates control group is operating normally. Hot-line tag light indicates “set” tag. See Figure 8.

K Stainless-steel base provides outstanding corrosion-resistance, even in the harshest environments.

L lnterrupter OPEN/CLOSED indicator. See Figure 21.

Figure 18. A Non-Disconnect Style IntelliRupter fault interrupter in upright-crossarm mounting configuration, rated 38 kV maximum.

J

A

B

I

C

K

E

L

F

G

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A Wildlife protection. See Figure 25.

B Control group is furnished with factory-installed and wired fiber-optic modem.

C Mounting pedestal is available in 9.5– and 12-foot versions.

D External power supply interface box (furnished with external power supply) provides plenty of room for fiber-optic connections.

E External power supply permits IntelliRupter fault interrupter to be powered from a pole-top transformer or substation battery.

Figure 19. A Non-Disconnect Style lntelliRupter fault interrupter in compact-crossarm mounting configuration, rated 27 kV maximum. Furnished with features suitable for substation application.

A

C

D

EB

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Figure 20. Interrupter OPEN/CLOSE/READY lever. Top: Opening interrupters. Bottom: Closing interrupters.

Interrupter fault interrupter OPEN/CLOSE/READY lever for manually opening and closing interrupters.

Pull the OPEN lever down to open the interrupters. The Open position can be tagged if desired. Interrupters can be tripped during an outage; control power isn’t required. Open interrupters are mechanically prevented from closing.

Pull the CLOSE lever down once for the first closing profile. Pull the lever twice for the second closing profile. Control power must be available.

Figure 21. Interrupter OPEN/CLOSED indicator, one at each pole. Left: Red (closed) target. Right: Green (open) target. Reversed-color targets are optionally available.

Interrupter OPEN/CLOSED indicator on each phase is large and reflective for easy viewing, day or night. It’s attached directly to the operating rod—no complicated linkage to break.

Figure 22. Disconnect OPEN/CLOSE lever, which can only be operated when interrupters are open.

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Figure 23. HOT-LINE TAG lever. Left: Manually applying hot-line tag. Right: Hot-line tag applied and tagged.

HOT-LINE TAG LEVER for setting and releasing tags for energized line work.

A tag can be set locally using the lever or the secure Wi-Fi communication link, or remotely using SCADA. Normally, a tag is removed the same way it was applied. However, the lever can be used to remove remotely set tags too. This approach meets NESC 442.E requirements, which allow local removal of a remotely set tag if local indication of the tag is provided … a HOT-LINE TAG indica-tor is furnished on the protection and control module.

GROUND-TRIP BLOCK lever for temporarily blocking ground overcurrent protection elements when bypassing IntelliRupter fault interrupter. Can optionally also block sensitive-earth overcurrent elements and circuit testing.

Figure 24. GROUND-TRIP BLOCK lever. Left: Applying ground-trip blocking. Right: Ground-trip blocking applied and tagged.

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Optional external trip interface. The external trip interface allows hardwire connections from the substation equipment to be decoded and sent to the control through an optical connection, providing complete electrical isolation between the substation control voltages and the IntelliRupter control system. Integrating the IntelliRupter fault interrupter into the substations allows S&C’s PulseClosing Technology to directly protect substation transformers. This feature will allow con-nections to backup relays, transformer and bus differential protection relays, control house indicators, switches, and other substation protection, allowing it to be tripped at protection speeds for these applications. This feature has been designed to work with S&C’s IntelliTeam SG Automatic Restoration System, allowing the substation protection to integrate seamlessly with the industry’s fastest self-healing system.

In addition to the substation application, this new feature also opens opportunities for integrating with distributed energy resources because the IntelliRupter fault interrupter’s accurate sensors and directional protection capabilities make it an ideal choice for those applications.

The external trip feature provides six inputs and five outputs. See Table 1 for a list of the inputs and outputs with their functional descriptions. The customer interface will accept dc voltages ranging from 19 Vdc to 180 Vdc, allowing it to operate with 24-V, 48-V, and 125-V substation batteries. It can also operate from 102 Vac to 208 Vac.

Table 1. Input/Output Descriptions

Type Name Description

Input Open Sends an open command to the control; the IntelliTeam system will treat this as a manual operation

Input Trip Sends an open command to the control; the IntelliTeam system will treat this as a protection operation

Input Close Sends a close command to the control

Input Hot Line Tag Applies Hot Line Tag

Input Ground Trip Block Applies Ground Trip Block

Input MaintenanceMode

Prevents all operation of the IntelliRupter fault interrupter; satisfies the requirements for the ANSI Device Designation 69

Output Open Contacts closed when the IntelliRupter fault interrupter is open

Output Close Contacts closed when the IntelliRupter fault interrupter is closed

Output Hot Line Tag Contacts closed when Hot Line Tag has been applied by the manual lever, IntelliLink software, through SCADA, or the external interface

Output Ground Trip Block Contacts closed when Ground Trip Block has been applied by the manual lever, IntelliLink software, through SCADA, or the external interface

Output Error Contacts closed when the link between the control and customer interface is not functioning or when the control is in an error state

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Figure 25. Optional wildlife protection. Reduces wildlife-related nuisance outages.

Tap cover

Blade cover

Figure 27. Optional bracket-mounted antenna. Extends four feet from the base; attaches at either end. Includes 900-MHz, 3-dBd-gain omnidirectional antenna or 900-MHz, 9-dBd gain directional Yagi antenna, plus cable and hardware. Also available: bracket only.

Figure 26. Optional MacLean Power Systems Zforce™ Type ZHP (Heavy Duty) polymer-housed metal-oxide surge arresters. Factory-installed and wired.

■ For other options and ratings, see S&C Specification Bulletins 766-31 and 766A-31.

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A Protection and Control Module and Communication Module is located in low-voltage compartment.

B Ground trip block and hot-line tag are located in low-voltage compartment.

C Interrupter OPEN/CLOSE/READY lever. See Figures 29 and 30.

D Interlock lever bar provides means to lock interrupters in open position.

E Visible load-break disconnect.

Figure 28. A Disconnect Pad-Mounted Style IntelliRupter fault interrupter, rated 15.5 kV maximum.

60-Hertz RatingskV Amperes, RMS

Minimum Maximum BIL Continuous Interrupting, Symmetrical

11.43 15.5 95 630 16 000

18.81 27 125 630 12 500

B

C

E

D

A

Construction of IntelliRupter Fault Interrupters for Underground System Applications

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To close the interrupters, slide the interlock bar to the left with interrupter OPEN/CLOSE/READY lever in the Ready position. Then, push the interrupter OPEN/CLOSE/READY lever forward once for the first closing profile.

Push the interrupter OPEN/CLOSE/READY lever forward twice for the second closing profile. Control power must be available.

Figure 30. Left: Interrupter OPEN/CLOSE/READY lever in Ready position. Right: Interrupter OPEN/CLOSE/READY lever in Close position.

Interrupter OPEN/CLOSE/READY lever for manually opening and closing interrupters.

To open the interrupters, slide the interlock bar to the right and pull the interrupter OPEN/CLOSE/READY lever forward.

The Open position can be tagged, if desired, by sliding interlock bar to the left with the interrupter open/close/ready lever in the Open position. Interrupters can be tripped during an outage; control power isn’t required. Open interrupters are mechanically prevented from closing.

Figure 29. Interrupter OPEN/CLOSE/READY lever in the Open position.

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Figure 35. Power supply. Powers the protection and control module and communication module, installed in the base or low-voltage compartment—in your service center or lab. Permits open, close, and pulsing operations, pre-installation uploading and downloading of configuration settings, programming of radio, and charging of radio batteries, as applicable. For indoor use only.

External power supply connector

Accessories

Other Accessories: ■ 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. Includes printed copies of all IntelliRupter fault interrupter instruction sheets, erection drawings, and reference drawings.

Figure 31. Module handle fitting. Attaches to the hookstick with universal fitting. Permits field installation and removal of protection and control module and communication module. Includes prong tor operating lntelliRupter fault interrupter levers.

Figure 34. Module stub handle. Permits installation and removal of the protection and control module and communication module—in your service center or Iab. When permitted by utility operating practice, can be used by a gloved individual to install and remove modules in the field.

Figure 33. Docking station. Powers the protection and control module and communication module, removed from the base or low-voltage compartment—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.

Figure 32. Wi-Fi tester. Simulates connection to com-munication module. Confirms your laptop computer can establish secure Wi-Fi connection to the lntelliRupter fault interrupter. Also demonstrates use of Wi-Fi security keys. For indoor use only.

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Why Choose IntelliRupters Fault Interrupters Instead of Conventional Reclosers?Consider all the important features included as standard on IntelliRupter PulseCloser Fault

Interrupters … that are either unavailable or only available at substantial additional cost on conventional reclosers.

IntelliRupter fault interrupter is clearly the intelligent choice.

IntelliRupter PulseCloser Fault Interrupter ConventionalReclosersStandard Feature Benefits

PulseClosing® Technology • Increases equipment life• Eliminates voltage sags• Reduces conductor slap• Improves coordination

• Reduces arc flash energy• Allows testing of underground

circuits

Not available

PulseFinding™ Fault Location Technique

• Simplifies coordination • Improves segmentation Not possible

Intelligent Fuse Saving Capability■

• Reduces number of disturbances on a feeder

• Improves SAIDI without negatively impacting MAIFI

Not possible

IntelliTeam® SG Automatic Restoration System Capability

• Improves reliability in critical areas of distribution system

• Quickly initiates service restoration after a fault

Requires S&C IntelliNode™ Interface Module

Loop Restoration Capability • Improves reliability of looped circuits

• Eliminates voltage sags Possible, but without PulseClosing Technology

Automatic Source-Transfer Capability

• Improves reliability of facilities with critical loads

May require optional hardware

Variety of Single-Phase and Three-Phase Tripping and Lockout Capabilities

• Easy tailored to the requirements of each application

• Can reduce number of disturbances on a feeder, improving MAIFI

Optional, if possible

Wi-Fi Communication and Configuration

• Permits configuration and operation from the security of your vehicle

• Extensive security features prevent unauthorized access

Optional

High-Resolution Waveform Capture and Viewing Software with GPS Time Stamping

• Speed post-event analysis Typically lower resolution. GPS time stamping is optional

High-Accuracy Integrated Current Sensing and Voltage Sensing on Both Sides of Device

• ±0.5% current sensing accuracy, for load currents through fault currents

• ±0.5% voltage sensing accuracy

• Eliminates cost of sensor mountings and cables

• Simplifies grounding• Reduces installation time

and cost

Limited-range integrated current sensing may be optionally available.

High-accuracy integrated voltage sensing may be optionally available

Self-Powered • Eliminates cost of potential transformer and fusing

• Simplifies grounding

• Reduces installation time and cost

Optional

Base-Mounted Controls • Eliminates cost of control enclosure and cables

• Simplifies grounding

• Reduces installation time and cost

Not available

Integrated Disconnect Models

• Cuts installation time• Interlocked operation

• Position is reported to SCADA Not available

Quick Installation • Single-point lifting eliminates need for framing

• Includes mounting bracket

• No enclosure to mount• Simplifies antenna connection• Factory installed and wired

surge arrestors are optional

Installation typically takes twice as long. Mounting bracket is optional.

Surge arresters may not be available

Ten-Year Control Warranty • Heightens confidence in quality of the control

• Ten-year hardware warranty is optional

Ten-year warranty on certain controls only.

Ten-year warranty on hardware is not available

■ For more information on Intelligent Fuse Saving, see “A New Fuse-saviNg PhilosoPhy” on S&C’s website, sandc.com/newfusesaving.

Table 2. IntelliRupter Fault Interrupter Features and Benefits

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The IntelliRupter fault interrupter and an IntelliTeam SG system will completely change the way you think about designing distribution systems for reliability and optimum functionality. S&C’s Power Systems Solutions’ team of automation, system planning, and engineering experts have extensive experience helping electric utilities apply S&C’s automation tools. They can get you up to speed quickly—avoiding the time-consuming learning curve that might otherwise be required.

Using their experience with S&C’s IntelliRupter fault interrupter and the IntelliTeam SG system, the Power Systems Solutions team has developed approaches for fully integrating distribution automation into even the most complex circuit configurations, ensuring your system works right…the first time.

They’ll help you apply the IntelliRupter fault interrupter and IntelliTeam SG system to:

■ Improve reliability

■ Defer capital expenditures

■ Reduce costs

■ Manage aging assets

Key considerations in the evaluation process include:

■ Analysis of costs versus benefits

■ Review of load levels and transfer capacity

■ Determination of critical customer needs

■ Determination of geographic concerns

■ Determination of reliability impacts

S&C can also provide critical engineering and field service expertise to ensure successful implementation of your distribution automation solution, including:

Engineering Services ■ Coordination studies to evaluate protection settings

■ End-to-end communication system design to make sure your system works right, today and in the future

■ IntelliTeam SG factory acceptance testing, which simulates your system to ensure automation design performs as expected

■ IntelliTeam SG site automation testing, which simulates events on site to ensure automation settings and demonstrate communication infrastructure functionality

Let S&C’s Power Systems Solutions’ Professionals Help You Maximize the Benefits of IntelliRupter Fault Interrupter and IntelliTeam SG Automatic Restoration System

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Field Services ■ Communication surveys

■ SCADA integration

■ Commissioning

■ Training

Engineering, Procurement, Construction (EPC) Services

■ Project management

■ Construction management

And S&C can provide services to evaluate the performance of your IntelliRupter fault interrupters and IntelliTeam SG system after commissioning, including:

■ System inspection and data collection

■ Remote monitoring for “system health reports”

■ System event evaluation

■ System communication evaluation

■ Post-installation benefit analysis

No other supplier offers the latest in distribution automation technology—plus assistance in applying and implementing this technology—so you’ll realize the maximum return on your investment.

Contact your local S&C Sales Office today for more information.

Offices Worldwide ■ sandc.com

Descriptive Bulletin 766-30 January 15, 2018 © S&C Electric Company 2006-2018, all rights reserved