IntelliRupter^® PulseCloser

Introduction

S&C’s IntelliRupter PulseCloser 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.

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.

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.

IntelliRupter features:

• 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.

Models rated 15.5 kV maximum can be applied on 60-Hz systems rated 11.43 through 15.5 kV, and 50-Hz systems rated 9 through 19.2 kV. Models rated 27 kV maximum can be applied on 60-Hz systems rated 18.81 through 27 kV, and 50-Hz systems rated 20 through 24 kV. All models have a 630-ampere continuous current rating (800 amperes with a minimum wind velocity of two feet per second) and 12,500-ampere interrupting rating.