Double Break Switches


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DB-A Aluminum Double Break Switch

The Cleaveland/Price DB-A is a three pole, group operated, aluminum double end break switch used primarily in substations. It is available at 345 kV, 2000A through 5000A.

 

Cleaveland/Price DB-A

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The double side break design is useful in applications where there is limited overhead clearance and interphase distances need to be kept at a minimum. The switch is ideal for EHV applications where a naturally counterbalanced blade is advantageous.

  • Aluminum tubular blades
  • Non-cast aluminum terminal pads with NEMA standard hole pattern
  • High pressure, silver-to-silver line contacts at jaws
  • Stainless steel contact springs
  • Patented blade turnover mechanism designed to provide full blade rotation with minimal operating force
  • Hot-dip galvanized double channel base

Reference the DB-AV tab for drawings of the switch in a “V” configuration for low profile mounting.

 

Brochure

Outline Drawings – DB-A

Outline Drawings – DB-AV

 


DB-CV “V” Copper Double Break

DB-CV “V” Copper Double Break

The DB-CV uses the same current carrying parts as the DB-C, however, the jaw end insulators are inclined.  By having the jaw end insulators inclined, the cable conductors establish electrical clearance from the base without the need for wire guides or outriggers.  The inclined insulator design makes the switch suitable for low profile substations.  This design is available from 115 kV through 161 kV.

 

 

 

 Brochure

 Outline Drawing 


 


DB-C Copper Double Break

The Cleaveland/Price DB-C is a three pole, group operated, copper double end break switch used primarily in substations. The switch is available in a “V” configuration at 115 kV to 161 kV. The double side break design is useful in applications where there is limited overhead clearance and interphase distances need to be kept at a minimum. Because the blades of the switch will not be energized when the switch is in the open position, the switch can be installed on the same phase spacing as a vertical break switch.

DB-C Performance Features 

  • All copper current carrying parts
  • Non-cast copper terminal pads with NEMA standard hole pattern
  • High pressure, silver-to-silver line contacts at jaws
  • Stainless steel contact springs
  • Parallel blade construction for efficient cooling
  • Built-in closed position blade stop
  • Ice shield on 115 kV through 230 kV ratings
  • Hot-dip galvanized single channel base of switches rated 7.2 to 69 kV, double channel base on switches rated 115 kV through 230 kV

 

Brochures

Outline Drawings 


    


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Group Operated Switch Overview

138 kV CB-A InstallationCleaveland/Price offers many group operated switch types including vertical break, center break, double end break and single end break.  All of the switches are available with copper current carrying parts.  The switches are typically supplied as three pole switches for substation, transmission, and distribution applications. The switches can be mounted in the horizontal-upright, vertical, horizontal-underhung, or inclined position.

The switches are suitable for use in a variety of applications including line disconnecting and sectionalizing, circuit breaker by-pass and isolation, and transformer isolation.  Arc horns or quick break whips are available when small amounts of transformer magnetizing currents and line charging currents must be interrupted.

Full load break attachments are available for vertical break switches. Accessories needed to adapt the switch to a customer’s particular requirements are available.

The switch may be manually operated by use of a swing handle or wormgear mechanism or electrically operated by use of a Cleaveland/Price TP-C2 motor operator.

Cleaveland/Price’s switches meet ANSI C37, NEMA, and IEEE Standards and the rating requirements of IEC Standards.