Telescopic and Blade Disconnect Switches

Telescopic Disconnect Switch

These highly reliable switches were specifically designed for high current applications. Telescopic disconnect switches, located on the bus ducts between the generator and the step-up transformer, allow quick and easy isolation of the generator.

These switches have been tested to withstand 12,000 cycles between major maintenance (testing done in a vertical position). The switch is designed to be installed vertically, horizontally or any position in between.

This switch has been designed for reliable operation featuring redundant positioning mechanisms, precise guiding systems and spring-loaded contact fingers for reliable contact between the mobile and fixed components.

This switch can be installed indoors or outdoors.

Ratings
  • 11 - 40 KV
  • 6,000 - 30,000 A
  • 110 - 150 KV BIL
   
Blade Switch

GE's blade switches can be used in power plants or industrial applications, inside switchgear compartments or custom-designed cabinets. These switches are designed for high-current applications and provide quick and easy circuit isolation.

The switches can be mounted in various positions in non-segregated, segregated or isolated phase configurations, inside aluminum or steel enclosures. Single or three phase switches are available.

The switches have been designed and tested to withstand high short-circuit forces in a non-segregated arrangement, with a reduced phase spacing. In addition, the switches have been tested to withstand 6,000 operations between maintenance activities.

An arc chute mechanism can be mounted on the side of the switch to break transformer magnetizing current. A grounding switch can also be added to the blade switch.

The blades, contact fingers and stationary contacts are made of silver-plated copper. The frame and enclosure are made of aluminum or steel. High-strength insulators are available in epoxy or porcelain materials.

  • Voltage: 1 to 38 KV
  • Current: 500 to 7000 A

For More Information

GE
75 D'Anvers, St-Augustin, Quebec, G3A 1S5, Canada
Call: (418) 878-6936
Fax: (418) 878-6939