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.

Medium-voltage air-break disconnect switches overview video

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.

B-2 switch- single-phase, three pull bypass

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

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