Hubbel CHANCE BP3R3M User manual

©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
TYPE BP3
3-PULL
BY-PASS
SWITCH FOR
DISTRIBUTION
SWITCHING
Installation,
Operation and
Maintenance
Manual
!IMPORTANT
Keep this manual readily
available for future reference

©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Table of Contents
Warnings 3
Overview 4-6
Receiving & Handling 6
Inspect Packaging 6
Unpack Switch 6
Switch Installation 7-8
Install Switch 7
Structure Application 7
Back Strap Application 7
Pole Mounting Bracket Application 8
Wiring 9
Conductors 9
Connect High Voltage Conductors 9
Operation 10-12
General 10
Closing Switch 10
Opening Switch 11
Maintenance 13
PAGE NO.

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©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Warnings
QUALIFIED PERSON
For the purpose of this manual, a qualified person is:
(a) familiar with the installation, operation and maintenance of the subject equipment and the hazards
involved with its installation, operation and maintenance.
(b) trained to de-energize, clear, ground, and tag circuits and equipment in accordance with established
safety practices.
(c) trained in the proper care and use of protective equipment such as rubber gloves, hard hat, safety
glasses or face shields, flash clothing, etc., in accordance with established utility safety practices.
(d) trained to render first aid.
SUMMARY
The information in this document does not claim to cover all details or variations in equipment, nor to provide
for every possible contingency encountered with installation, operation, or maintenance. Should further
information be needed or problems arise that are not covered suciently, contact your factory representative.
The contents of this document are not part of, nor do they modify, any prior or existing agreement, commitment
or relationship. CHANCE terms and conditions of sale constitute the entire obligation of CHANCE. The warranty
in the terms and conditions of sale is the sole warranty of CHANCE. Any statements in this document do not
create new warranties or modify any existing warranty.
IMPORTANT
These installation, operation and maintenance instructions do not claim to cover all details or variations in
equipment. Nor do they provide for all possible conditions encountered while installing, operating or maintaining
this equipment. If further information is desired or needed to address any particular installation, operation
or maintenance problem not covered in this document, contact your authorized factory representative.
The information in this document does not relieve the user from exercising good judgment in selecting
equipment for suitability of application. Nor does it relieve the user from using sound practices in installation,
operation and maintenance of the equipment purchased.
Note: Because CHANCE has a policy of continuous product improvement, we reserve the right to change
design and specifications without notice. Should a conflict arise between the general information in this
document and the contents of drawings or supplementary material, or both, the latter shall take precedence.
Electrical equipment contains hazardous voltages and high speed moving parts.
Contact with these hazards will cause death, serious personal injury or damage
equipment.
Only qualified personnel shall install, operate and maintain this equipment Always
properly ground equipment and lock out electric power (de-energize) before
maintenance. Using non-specified/unauthorized parts or components to repair
equipment, or tampering with safety devices/systems will result in dangerous
conditions which can cause death, severe personal injury or damage to equipment.
Take note of and follow all safety instructions contained in this installation, operation
and maintenance manual.
DANGER
!

4
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Overview
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 before 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
!
DANGER indicates an imminently
hazardous situation which, if not
avoided, will result in death or
serious injury.
WARNING
!
WARNING indicates a potentially
hazardous situation which, if not
avoided, could result in death or
serious injury.
CAUTION
!
CAUTION indicates a potentially
hazardous situation which, if not
avoided, may result in minor or
moderate injury.
CAUTION
CAUTION used without the safety
alert symbol indicates a potentially
hazardous situation which, if not
avoided, may result in property
damage.
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
dierent capacity is desired,
contact your supervisor or factory
representative
FUNCTION
These products are non-loadbreak
disconnect 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 electricalservice. 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 loadbreak tool. The
BP3 has no deadending provisions.
SPECIFICATIONS
Select the proper BP3 switch for
each installation with consideration
to voltage, continuous current,
short time current withstand,
lightning 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
15.0 kV, 27 kV or 38 kV
• Lightning Impulse peak
withstand ratings of 110 kV,
125 kV, 150 kV and 200 kV
• Continuous current rating of
600 or 900A (900A only for
units with 200 kV BIL rating)
• Short time current withstand
rating: 25 kA Symmetrical,
1 second 65 kA peak
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
!

5
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
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 opening by-pass blade opens to the left. Illustrations 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.
Overview
2. SWITCH MOUNTING (3 variations)
BACK STRAP
Provides a galvanized steel back
strap and hardware for vertical
structural applications. Mounting
hardware supplied consists of two
each of ½" diameter by 8" long
and 10” long carriage bolts with
square nuts and flat washers.
POLE MOUNTING BRACKET
Provides a galvanized steel
bracket for wood pole mounting.
Hardware is supplied to attach
the switch to the bracket. The
user supplies the bracket-to-pole
hardware. If the utility pole is
other than a wood pole, contact
your factory representative.
NO MOUNTING BRACKET
(STANDARD)
Provides holes and slots in the
switch base for direct base to a
vertical structure mounting without
the use of a back strap or pole
mounting bracket. The structure
must be drilled to match the base
mounting holes or slots. The user
supplies the mounting hardware.
3. TERMINAL CONNECTORS (3 variations)
CAPTIVE HARDWARE
Provides ½" diameter by 1¾" long
stainless bolt secured into each
terminal pad hole. Each bolt is
supplied with a hex nut and lock
washer. Terminal connectors
supplied by the user.
TERMINAL CONNECTORS
Four fortified cadmium plated
aluminum parallel groove terminal
connectors (ATC1343) with
terminal pad mounting hardware
are supplied. The connectors
accommodate conductor sizes
ranging from No 2 solid copper
thru 500 MCM copper or aluminum.
NO TERMINAL HARDWARE
(STANDARD)
The user supplies the terminal
connectors and mounting
hardware.

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©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
4. LOADBREAK HOOKS on DISCONNECT BLADES (2 variations)
BLADE GUIDES (STANDARD)
Provides non-loadbreak blade
guides on disconnect blades.
LOADBREAK HOOKS
Provides single-sided loadbreak
hooks on disconnect blades.
Overview
Receiving & Handling
INSPECT PACKAGING
• Upon receipt, immediately
inspect packaging for signs
of damage
• Start inspection with the
packaging material and
proceed to the equipment
within
• Look for concealed damage
• If damage is found, note
damage on Bill of Lading
prior to accepting delivery,
if possible
Note: Documentation of visible
shipping damage can determine
the outcome of any damage
claim. Immediately notifying the
carrier of concealed damage
is essential to resolving or
minimizing unsettled claims.
Immediately file your claim
and notify your factory
representative.
INSPECT PACKAGING
• Place shipping crate on stable,
level surface near the utility
pole
• Remove the four angled top
boards from the shipping
crate
• Remove any options included
• Remove the clamping board
from across the switch base
• Leave switch on its pallet until
ready to install
• Compare switch with the
photo to be sure all items
have been included
• Contact your factory
representative if any parts are
missing
• If desired, the crate may
be turned over and used
as a work table to facilitate
assembly and slinging of the
switch.

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©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
INSTALL SWITCH
The BP3 By-Pass switch is
available in three mounting
arrangements. It may be obtained
with no mounting bracket, with a
back strap or with a bracket for
wood pole mounting. Select your
application from the descriptions
below and install the switch
accordingly.
Switch Installation
STRUCTURED APPLICATION
• Refer to Figure 1
• Determine the switch
mounting location on the
structure
• Provide a minimum of two
⁄" diameter mounting holes
in the structure matching the
hole or slot patterns as shown
in the switch base detail
• Secure lifting sling as shown
below
• Using your company’s
standard practice, hoist the
switch into position
• Attach the switch to the
structure with 1/2" diameter
user supplied mounting
hardware and torque
according to your company
standards.
BACK STRAP APPLICATION
• Refer to Figure 2
• The back strap option is
supplied with two lengths of
mounting bolts, 8 inches and
• 10 inches in length.
• Secure lifting sling as shown
• Using your company’s
standard practice, hoist the
switch into position
• Attach the switch using the
provided back strap and
appropriate length bolts.
• Adjust the bolts in the switch
base and back strap slots
to fit close to the vertical
structure.
• Torque mounting hardware
nuts to 60 ft-lb.
FIGURE 1

8
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Switch Installation
POLE MOUNTING BRACKET
APPLICATIONS
• Determine pole mounting
bracket location and drill two
1⁄" diameter holes spaced
11¼" apart on the utility pole’s
centerline.
• Install one user supplied ⅝"
diameter bolt, washer and nut
in the top hole.
• Leave bolt head and washer
away from the pole far
enough to hang the mounting
bracket on the bolt.
• If preferred, the mounting
bracket may be installed on
the utility pole before the
switch is assembled to the
mounting bracket, or the
mounting bracket may be
installed to the switch and
then installed on the utility
pole. Torque the two supplied
½" bolts to 60 ft-lb.
• Secure lifting sling as shown
• Using your company’s
standard practice, hoist the
switch into position
• Attach the mounting bracket
(with or without the switch)
to the utility pole
• Install the lower bolt, washer
and nut (user supplied),
• Torque both user-supplied
bolts according to your
company standards.

9
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Wiring
CONDUCTORS
• Using your company’s
standard practices, train the
conductors to the switch
terminal pads
• Use sucient conductor
length to allow for ease
CONNECT HIGH VOLTAGE
CONDUCTORS
• Wire brush mating surface of
the switch terminal pads and
terminal connectors
• Wire brush connector
surfaces where conductors
will be secured
• Wire brush conductor
surfaces
• Apply a contact sealing paste
to the cleaned surfaces (A.B.
Chance Z.L.N. or equivalent)
• Assemble connectors,
conductors and hardware to
the switch terminal pads
• Ensure bolt heads of the
terminal connectors are
on the insulator side of the
terminal pad as shown.
• Torque all supplied hardware
to 60 ft-lb.
• Torque user supplied
hardware according to your
company standards.
High Voltage Electrical Arc Hazard
May cause property damage.
Install terminal connectors with bolt heads
toward the insulator. Failure to do so may
compromise the electrical insulation resulting
in an electrical arc.
CAUTION

10
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Operation
GENERAL
Operation of the BP3 By-Pass
switch is shown in Figures 4 and
5. In normal operation, the by-
pass blade is open and the two
disconnect blades are closed
(Figure 4), allowing the recloser
to be in the circuit. When
isolation of the recloser is
required, close the by-pass blade
to provide a parallel current path.
Open the disconnect blades
(Figure 5) to isolate the recloser
from the circuit.
• Position yourself below and
slightly to the front of the
switch’s hook stick pull ring
• Position feet and body in a
manner that provides good
stability and allows for hook
stick use without losing a
steady footing
• Under ice conditions, be
prepared to use greater force
to overcome the additional
resistance
• Allow a minimum of 24 inches
(610 mm) clearance from the
bottom of the hook stick to
the ground for uninterrupted
hookstick travel.
CLOSING SWITCH
• To close the BP3 switch, place
a hookstick in the pull ring on
the blade and rotate the blade
to an intermediate position as
shown in Figure 6.
• Turn head and look away from
the switch.
• Quickly, firmly and without
hesitation drive the switch to
the closed position.
• Carefully remove the
hookstick from the pull ring to
avoid opening the switch.
High Voltage Electrical Arc Hazard
Can cause death, severe personal injury or
property damage.
Close the by-pass blade before opening either
of the two disconnect blades. Failure to do so
will result in an electrical arc.
WARNING
!
• The BP3 switch is properly
closed when the blade hook
is fully engaged with the latch
portion of the blade stop as
shown in Figure 7.
• Visually check each switch
blade for proper latching.
Normal Operating Position
Source By-Pass
Blade
Disconnect
Blade
Recloser
By-Pass Switch
Recloser
Disconnect
Blade
Load
By-Pass Operating Position
Source By-Pass Blade
Disconnect
Blade
Recloser
By-Pass Switch
Recloser
Disconnect
Blade
Load
FIGURE 4 FIGURE 5
FIGURE 6 FIGURE 7
BLADE HOOK
LATCH

11
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Operation
OPENING SWITCH
• To open the BP3 switch, place
a hookstick in the pull ring as
shown in Figure 8.
FIGURE 8
• Turn head and look away from
the switch.
• Quickly, firmly and without
hesitation pull down and
towards the hinge end of the
switch at about a 45° angle.
High Voltage Electrical Arc Hazard
Opening an energized disconnect switch
without a loadbreak tool will create an
electrical arc.
Can cause death, severe personal injury or
property damage.
Use appropriately rated loadbreak tool to open
a switch that is carrying load current.
WARNING
!
• Once the switch is open,
complete the blade travel to
its stop position.
• Carefully remove the
hookstick from the pull ring.
• The by-pass blade is
equipped with an open blade
latch. Visually check that the
stop pin has engaged the
open blade latch.
• The by-pass blade of the BP3
switch is also equipped with
loadbreak hooks for use with
a loadbreak tool.
• To open the by-pass blade
of the switch under load, use
only an approved loadbreak
tool or device designed for
use with switches.
• Follow the instructions
provided with such tools.

12
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Operation
• Standard BP3 switches have blade guides on the left and right
disconnect blades. Open only after by-pass blade has been closed
electrically paralleling the disconnect blades.
• The loadbreak hook option equips the disconnect blades with single
sided loadbreak hooks. The loadbreak hooks allow the use of a loadbreak
tool for the switching of load, capacitor, line/cable charging and
magnetizing currents.
• To open loadbreak hook equipped disconnect or by-pass blades of an
energized by-pass disconnect switch, use only an approved loadbreak
tool designed for use with switches.
• Follow the instructions provided with such tools.
• When by-passing a voltage regulator, except three-phase induction
regulator, follow the steps outlined below. For three-phase induction
regulators, contact supervisor or factory representative.
1. Set voltage regulator automatic control to manual. Set voltage regulator to
its neutral position. Bypass blade is open. Disconnect blades are closed.
2. Close by-pass blade. The by-pass blade shunts the voltage regulator series
winding. Disconnect blades are closed.
3. Open either disconnect blade to disconnect the voltage regulator series
winding. By-pass blade is closed. Voltage regulator shunt winding remains
energized through other disconnect blade.
4. Open remaining disconnect blade using loadbreak tool to interrupt the
voltage regulator magnetizing current. By-pass blade is closed. Disconnect
blades are open.
5. Reverse the above sequence of steps to return a voltage regulator to
service.
High Voltage Electrical Arc Hazard
Opening an energized disconnect switch without a loadbreak
tool will create an electrical arc.
Can cause death, severe personal injury or property damage.
Use appropriately rated loadbreak tool to open an energized
by-pass switch.
WARNING
!
High Voltage Electrical Arc Hazard
By-passing a voltage regulator without first setting the regulator to its neutral position
and without using a loadbreak tool to open the remaining disconnect blade will create
an electrical arc.
Can cause death, severe personal injury or property damage.
Set regulator to its neutral position and use appropriately rated loadbreak tool to open
the remaining disconnect blade to by-pass a voltage regulator.
WARNING
!

13
©Hubbell Incorporated | hubbellpowersystems.com
TD10321E Rev. B - 07/2021
Maintenance
GENERAL
Prolong the life of the BP3 By-
Pass switch with a periodic
inspection and maintenance
program. Although the switch is
designed for long-term exposure
in all weather conditions, certain
environments may reduce its
life without periodic maintenance.
Following these minimum
inspection and maintenance
procedures will help ensure long
service life.
Note: It is recommended that
all switches go through a
maintenance check at least
once a year; more frequently if
located in a contaminated area
For additional recommendations,
refer to ANSI C37.35 “IEEE Guide
for the Application, Installation,
Operation, And Maintenance
of High Voltage Air Disconnect
and Load Interrupter Switches.”
Hazardous Voltage
Contact with energized lines will result in death,
personal injury or property damage.
All maintenance work should be performed
on de-energized switches. If work must be
performed on live lines, follow your company’s
standard safe operating procedures.
DANGER
!
Hazardous Voltage
Can cause death, severe personal injury.
Contact with the switch bases, hardware or
crossarm could result in electrical shock.
Ground the switch bases and mounting
hardware prior to maintenance.
WARNING
!
SWITCH
Operate the switch periodically
to clean contact surfaces to keep
parts moving freely service life.
• Check for burned or pitted
contacts and replace if
necessary. Lubricate if
necessary with Optimol®
grease C600-2870
• Check the hinge bolts for
looseness. If loose, clean bolt
threads, apply Loctite®-271
and torque to 40-in-lb.
• Inspect all blade rivets for
tightness and replace blade
assembly if loose.
• Inspect the mounting
hardware and tighten
according to specifications
located in the Installation
Section of the manual.
• Replace any damaged or
tracked insulators. Clean or
replace if heavily contaminated.
Consult your factory
representative for authorized
replacement insulators.
CONDUCTORS
• Be sure all conductors
are routed so they do
not interfere with switch
operation
• Inspect all conductors to be
sure terminations are tight
and corrosion free
• If necessary, clean and apply
contact sealing paste (A.B.
Chance Z.L.N. or equivalent)
and retighten terminations.

©2021 Hubbell Incorporated.
Because Hubbell has a policy of continuous product improvement,
we reserve the right to change design and specifications without notice.
Printed in the U.S.A. | TD_10_321_E
For product inquiries, please contact your local sales
representative or customer service representative.
hubbellpowersystems.com
These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection
with installation, operation or maintenance. Should further information be desired or should particular problems arise which are not covered
suciently for the purchaser's purposes, the matter should be referred to Hubbell Power Systems, Inc.