B-2 regulator bypass medium-voltage disconnect switches and assemblies

15-38 kV
  • Rated continuous current up to 900 A

  • Lightning impulse (BIL) up to 200 kV

B-2 medium-voltage regulator bypass disconnect switches

A versatile bypass solution, the type B-2 bypass switch is purposely designed as a recloser bypass and can also be used as a regulator bypass. Underhung and angled pole-mounting brackets contribute to ease of installation.

 

Watch the video below to learn more about Siemens medium-voltage air-break disconnect switches. 

Application:

Recloser or regulator bypassing to reduce the impact of equipment maintenance on network reliability.

 

Features include:

  • Robust square-tubular copper blades.

Options:

  • Porcelain or polymer insulators
  • Stop-position angle
  • Left- or right-hand bypass operation
  • Custom terminal arrangements
  • Loadbreak hooks.

Ratings:

  • Voltage ratings of 15, 27, and 38 kV
  • Rated continuous currents of 600 and 900 A
  • Lightning impulses (BIL) of 110, 150, and 200 kV.

Bypass recloser assembly type B-2

Siemens type B-2 bypass assembly offers quick and simple installation. Originating from the reliable B-2 single-phase switch, all three-phase units ship preassembled on the crossarm for easy installation at the site, which reduces time and overall installation costs. A B-2 bypass assembly is customizable with porcelain or polymer insulators and galavanized or fiberglass bases. The assembly provides a means for bypassing and disconnecting pole-mounted reclosers. Proper sequence operation allows the recloser to be bypassed and isolated from the system.

Goals:

  • Reduce downtime when maintenance is required
  • Minimize installation time through pre-assembly.

Features and benefits:

  • 15.0 kV, 25.0 kV and 38.0 kV voltage ratings
  • Factory installed on galvanized or fiberglass arm
  • Adjustable pole gain provides angling option per field conditions
  • Single- or double-point lift bracket
  • Arm length 8’ (2.4 m), 10’ (3.0 m), or 12’ (3.7 m) (custom phase-spacing available)
  • Customer terminal pad options to simplify terminal connections
  • Easy identification of bypass blades in open or closed position
  • Three-pull design
  • Square copper-tube blades
  • High-pressure coin silver contacts
  • Load-break hooks available
  • Left- or right-hand bypass blade
  • Custom configurations available
  • Coastal environment options
  • Quick installation
  • Factory adjusted.
Series
Maximum nominal voltage kV
Basic insulation level kV
Continuous current
2913
15
110
600/900
2913
25
150
600/900
2913
38
200
600/900

Mailing address

Siemens Industry, Inc.

99 Bolton Sullivan Drive

Heber Springs, Arkansas 72543

United States

Visit us in booth #1150 at IEEE PES T&D Conference and Exposition 2020 October 13-15 at McCormick Place South in Chicago, IL 

"A world class event. A powerful experience." See the strength and robustness of Siemens medium-voltage distribution products and solutions on display including:

  • The debut of Siemens new SDV-R-AR arc-resistant outdoor circuit breaker ideal for renewable applications.
  • Overhead solutions like the CMR compact modular recloser, a lightweight reduced maintenance alternative to traditional oil-filled reclosers, the Fusesaver,  the world's fastest medium-voltage circuit breaker now with rechargeable communications module, plus disconnect switches and bypass assemblies. 
  • 8DA10 gas-insulated switchgear with its isolated phase-design that virtually eliminates phase-to-phase faults and has a footprint up to 75% smaller than traditional air-insulated switchgear.  
  • GM-SG air-insulated switchgear with SIERS  integrated closed door electrical-racking system, which helps provide additional personnel protection against arc-flash exposure for operators.