15kV ~ 38kV Cutouts for Overhead Distribution Line

Introduction

The Joongwon cutouts(JW SQ) are designed to meet increasing requirement of the electric utility industry, providing a safe, maintenance free, long life, economical device to perform overcurrent protection on overhead distribution lines.

The cutouts are used on overhead distribution systems to provide overcurrent protection and visible indication of fuse operation. The cutouts provides a visible break sectionalizing point for maintenance personnel and is equipped with hooks for use with a portable loadbreak tool. This allows the cutouts to be used as a loadbreak switch to open the circuit with load current flowing.

Porcelain or silicone insulators, seacoast design and kickout spring options are available on certain models.

Cutouts Design

  • Mechanical construction of the JW SQ cutouts are rugged and strong
    • It is designed to withstand the interruption forces of heavy fault currents and the typically forceful closing-in by linemen.
  • Superb current transfer
    • Minimum electrical resistance between the upper contact and the silver-clad fuse tube cap.
    • The fuse tube is held at the upper contact by a self-aligning spring-loaded detent-type latch.
  • No fuse link breakage
    • The JW SQ cutouts have been engineered to prevent fuse-link breakage
  • Interchangeability
    • The JW cutouts are designed to be electrically and mechanically interchangeable with the S&C and Cooper fuse link and fuse holder.
    • Cutouts perform by expelling gases during interruption from the bottom of the fuse tube. For the highest interrupting rating, a link extender rod is attached to the fuse tube cap, improving the efficiency of gas expulsion and arc interruption. Fuse tubes are clearly labeled to indicate interrupting capability.
Duta Terang Rubberindo

15kV ~ 38kV Cutouts for Overhead Distribution Line

Features

  • Easy tube insertion
  • Low contact resistance
  • Positive alignment when closing
  • Completely reliable dropout, regardless of fault-current level
  • Silicon & porcelain insulation provides industry leading reliability
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