1. Catalogs
  2. Southern States LLC
  3. ES-1 72.5kV-145kV Transmission Line Switch Catalog Flyer

ES-1 72.5kV-145kV Transmission Line Switch Catalog Flyer

ES-1 72.5kV-145kV Transmission Line Switch Catalog Flyer

ES-1 72.5kV-145kV Transmission Line Switch Catalog Flyer

Product catalog summary
Introduction
The ES-1 is a pole-mounted transmission line switch introduced by Southern States to meet the market demand for a reliable, low operating effort single side break switch. It is particularly suitable for applications such as pole-mounted phase-over-phase and phase-opposite-phase configurations.
Features
  • Unique blade design with jaw end pivot for low operating effort.
  • No slam-in action required for contact seating, allowing for manual gear crank operation.
  • Available in 1, 2, or 3-way configurations and shipped assembled for easy installation.
  • Compatible with whip or LLS® (load break) attachments.
Specifications
  • Maximum Voltage Ratings: 72.5 kV – 145 kV.
  • Continuous Current Rating: 1200 A.
  • Includes jaw guide stop for proper contact seating.
  • Can be equipped with various arcing horns and interrupters.
  • Square blade construction for rigidity and current carrying capacity.
  • 4-hole NEMA tin-plated copper terminal pads.
  • Maintenance-free bearings and collapsible frame for reduced shipping footprint.
  • Smart TAP® solution available for fault finding and power restoration.
Applications
  • Line disconnecting and sectionalizing.
  • Isolation and bypassing.
  • Line and cable dropping.
  • Magnetizing current interrupting and loop splitting.
  • Long line dropping.
Ratings
  • Maximum Voltage Rating: 72.5, 123, 145 kV.
  • BIL: 350, 550, 650 kV.
  • Rated Power Frequency: 60 Hz.
  • Continuous Current: 1200 A.
  • Short-Time Symmetrical Withstand (3 Sec): 38 kA RMS.
  • Peak Withstand: 99 kA.
  • Ambient Temperature Rating: -40ºC to +50ºC (Standard), -50ºC (Optional).
See more

Catalog excerpts

ES-1 72.5kV-145kV Transmission Line Switch Catalog Flyer-1

> Disconnect Switches > TRANSMISSION C ATA LO G Pole Mounted Transmission Line Switch The Industry’s broadest line of Disconnect Switch offerings expands again. In response to a market need for a reliable, low operating effort transmission class single side break switch; particularly for applications such as pole mounted phase-over-phase and phase-opposite-phase; Southern States introduces the ES-1 aluminum single side break switch. FEATURES • Unique blade design with jaw end pivot produces very low operating effort • oes not require slam-in action to seat contacts; allowing the use of a manual D gear crank operator if desired in lieu of a manual swing handle • vailable in 1, 2 or 3 way configurations A • hipped assembled for fast and easy installation S • Has the ability to have a whip or LLS ® (load break) attachment SPECIFICATIONS Maximum Voltage Ratings 72.5 kV – 145 kV Continuous Current Rating 1200 A

 Open the catalog to page 1
ES-1 72.5kV-145kV Transmission Line Switch Catalog Flyer-2

> Disconnect Switches > TRANSMISSION RATINGS Maximum Voltage Rating (kV) Pole Mounted Transmission Line Switch Rated Power Frequency Continuous Current Short-Time Symmetrical Withstand (3 Sec) Peak Withstand Ambient Temperature Rating CHARACTERISTICS & BENEFITS • Jaw guide stop assures proper contact seating during the closing operation and when fully closed • Does not require dual speed motor operator to properly seat contacts in the fully closed position • Can be outfitted with standard arcing horns, whip type arcing horns, loop splitting interrupters and load break interrupters depending upon...

 Open the catalog to page 2
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.