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P805-0011 Rev. A
©
2002 Hubbell Power Systems, Inc., 210 North Allen Street, Centralia, MO 65240 U.S.A.
Hazardous voltage.
Will cause severe personal injury, death, or property damage.
Only qualified personnel should work on or around this equipment after
becoming thoroughly familiar with this document and other publications
regarding this equipment.
!
DANGER
Qualified Person
Only qualified trained and competent
personnel that understand proper safety
procedures must select, install and service
this equipment.
Read and understand these instructions be-
fore installing, operating or maintaining this
equipment.
This guide is not a substitute for adequate
training and experience in safety procedures
for this type of equipment.
Signal Words
The signal words “DANGER,” “WARNING”
and “CAUTION” (along with their assigned
symbol) throughout this manual indicate the
degree of hazard the user may encounter.
These symbols and words are defined as:
DANGER indicates an imminently hazardous
situation which, if not avoided, will result in
death or serious injury.
WARNING indicates a potentially hazardous
situation which, if not avoided, could result in
death or serious injury.
CAUTION indicates a potentially hazardous
situation which, if not avoided, may result in
minor or moderate injury.
CAUTION used without the safety alert sym-
bol indicates a potentially hazardous situation
which, if not avoided, may result in property
damage.
▲
!
DANGER
!
WARNING
!
CAUTION
CAUTION
Product
The products covered by this manual are
the BP3 3-Pull overhead by-pass switches
for medium voltage electrical distribution
switching.
These products are designed for distribution
switching only at their rated capacities. They
cannot be field modified for capacities other
than what was shipped with the units. If a
different capacity is desired, contact your
supervisor or factory representative to se-
cure the appropriate unit.
Overview
Function
These products are non-loadbreak discon-
nect switches designed to provide a means
for by-passing, disconnecting and isolating
reclosers or similar devices on the electrical
distribution system.
General
The BP3 By-Pass Switch is a single-phase
3-blade, 3-pull, hookstick operated switch. It
is used for manually disconnecting a
recloser without interrupting normal electri-
cal service. Standard variations are:
1. Right or left opening by-pass blade
operation
2. Switch mounting
3. Terminal connections
4. Loadbreak hooks on disconnect blades.
The BP3 switch has no inherent current
making or breaking capacity. The by-pass
blade includes a hook for use with a load-
break tool. The BP3 has no deadending pro-
visions.
Specifications
Select the proper BP3 switch for each instal-
lation with consideration to voltage, continu-
ous current, short time current withstand, light-
ning impulse withstand and variations. If there
is concern about the use of this switch as rated,
consult your supervisor before installation.
•
Nominal voltage ratings of 14.4 kV, 25
kV or 34.5 kV (model dependent)
•
Lightning impulse peak withstand ratings
of 110 kV, 125kV or 150 kV (model
dependent)
•
Continuous current rating of 600
amperes
•
Short time current withstand rating:
25 kA symmetrical, 1 second
65 kA peak
Switch Variations
1. Right or Left By-Pass Blade Opening
Right or left by-pass blade opening may be
specified. A right opening by-pass blade
opens to the right of the operator when
standing in front of the switch. A left open-
ing by-pass blade opens to the left. Illustra-
tions in this manual show only right by-pass
blade opening. Left by-pass blade opening
will be opposite as shown but does not
change installation or operation procedures.
