By design, the Type BP3 Switch provides an economical means for bypassing and disconnecting a pole-mounted distribution recloser. This permits de-energized periodic maintenance of the recloser without interrupting service. The BP3 Switch accomplishes this by a combination of three disconnect switches mounted on a common base. By operating the blades in proper sequence, the recloser is bypassed and isolated from the distribution system.
Three-Phase Units ship pre-assembled on a crossarm, the complete assembly ready for easy installation at the site. Choose steel or fiberglass crossarm.
Rated at 600 or 900 Amps, the BP3 switch is available in nominal ratings of 15kV 110kV BIL, 27 kV 125kV BIL, 27kV – 150kV BIL, 38kV – 150 kV BIL and 38kV – 200kV BIL (For Single Phase Applications Only). All are available with either a right or left hand opening direction of the bypass blade.
Operation
Figures below illustrate the BP3 By-Pass Switch operation.
In normal operation, the by-pass switchblade is open and the two disconnect blades are closed, allowing the recloser to be in the circuit.
When recloser maintenance, testing, repair or removal is required,
first close the by-pass blade to provide a parallel current path. Then open the recloser’s internal contacts. And last, open both disconnect blades of the by-pass switch.
In this way, service continuity is maintained and the recloser is isolated from the line. To put the recloser back in service, the switch operating procedure is reversed.
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