Siemens QR Series Guide

SIEMENS
Type
QR
Metal
-
Enclosed
Load
Interrupter
Switches
5
kV
and
15
kV
Instructions
Installation
Operation
Maintenance
SG
-
3428
Courtesy of NationalSwitchgear.com

Preface
ses
or
face
shields
,
flash
clothing
,
etc
,
in
accordance
with
established
safety
practices
.
This
equipment
contains
hazardous
voltages
.
Severe
per
-
sonal
injury
or
property
damage
can
result
if
safety
instruc
-
tions
are
not
followed
.
Only
qualified
personnel
should
work
on
or
around
this
equipment
after
becoming
thoroughly
familiar
with
all
warnings
,
safety
notices
,
and
maintenance
procedures
contained
herein
.
The
successful
and
safe
operation
of
this
equipment
is
dependent
upon proper
han
-
dling
,
installation
,
operation
and
maintenance
.
Danger
For
the
purpose
of
this
manual
and
product
labels
.
DANGER
,
indicates
death
,
severe
personal
injury
or
substantial
proper
-
ty
damage
will
result
if
proper
precautions
are
not
taken
.
Qualified
Person
Warning
For
the
purpose
of
this
manual
and
product
labels
,
a
qualified
person
is
one
who
is
familiar
with
the installation
,
construction
and
operation
of
the
equipment
and
the hazards
involved
.
In
addition
,
he has the
following
qualifications
:
(
a
)
Is
qualified
and
authorized
to
energize
,
de
-
energize
,
clear
,
ground
and
tag
circuits
and
equipment
in
accord
-
ance
with
established
safety
practices
.
(
b
)
Is
qualified
in
the
proper
care
and
use
of
protective
equipment
such
as
rubber
gloves
,
hard
hat
.
safety
glas
-
For
the
purpose
of
this
manual
and
product
labels
,
WARNING
,
indicates death
,
severe
personal
injury
or
substantial
property
damage
can
result
if
proper
precautions
are
not
taken
.
Caution
For
the
purpose
of
this
manual
and
product
labels
,
CAUTION
indicates
minor
personal
injury
or
property
damage
can
result
if
proper
precautions
are
not
taken
.
Courtesy of NationalSwitchgear.com

Table
of
Contents
Operation
Introduction
Switch
Ratings
General
Information
.
...
General
Description
..
.
Weights
Receiving
and
Handling
Uncrating
Inspection
Storage
Installation
Foundation
Conduit
Erection
Bus
Bar
Joints
Transformer
Connections
General
Information
Description
Sequence
of
Operation
.
.
.
Switch
Operator
Maintenance
Periodic
Inspection
Cleaning
Contacts
Insulators
Insulation
Check
Bus
and
Conductor
Check
Chain
Drive
Switch
Alignment
Corrosive
Atmospheres
.
.
.
Space
Heaters
Troubleshooting
.
Recommended
Spare
Parts
Fuse
Selection
Guide
1
11
1
11
2
11
2
11
2
3
13
3
13
13
3
14
14
4
14
4
14
4
15
4
16
4
17
Cable
Connections
Taping
Joints
Ground
Connection
Secondary
Wiring
.
Inspection
Final
Testing
6
18
8
19
9
20
9
9
Warranty
Warranty
21
10
NOTE
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
,
opera
-
tion
or
maintenance
.
Should
further
information
be
desired
or
should
particular
problems
arise
which
are
not
covered
suf
-
ficiently
for
the
purchaser
'
s
purposes
,
the
matter
should
be
referred
to
the
local
Siemens
sales
office
.
The
contents
of
this
instruction
manual
shall
not
become
part
of
or
modify
any
prior
or
existing
agreement
,
commitment
or
relationship
.
The
sales
contract
contains
the
entire
obligation
of
Siemens
.
The
warranty
contained
in
the
contract
between
the
parties
is
the
sole
warranty
of
Siemens
.
Any
statements
contained
herein
do
not
create
new
warranties
or
modify
the
existing
warranty
.
Courtesy of NationalSwitchgear.com

Introduction
Pagel
Switch
Ratings
General Information
These
instructions
apply
to
Siemens
Type
QR
indoor
and
Type
OQR
Outdoor
Metal
Enclosed
Load
Interrupter
Switches
(
LIS
)
as
covered
by
ANSI
Standard
C
37.20
Metal
Enclosed
Interrupter
Switchgear
.
This
equipment
is
described
in
detail
in
catalog
section
SG
-
3111
.
A
standard
36
-
inch cubicle
(
QR
-
36
)
can
be
used
individually
with
an
open
dry
-
type
transformer
,
or
adjacent
to
any
auxiliary
high voltage
unit
in
which
proper
bus
entry
and
alignment
can
be
made
.
A
14
-
inch wide transition unit
and
a
throat
are
added when the
36
-
inch
wide
cubicle
is
used
with
liquid
-
filled
or
outdoor
dry
-
type
transformers
.
This
equipment
has been
designed
to
operate
within
the limits
specified
on
the
rating
label
.
If
for
any
reason
the
equipment
is
later
used
in
a
different
system
,
or
if
the
short
-
circuit
capacity
of
the
system
is increased
,
the
momentary
rating
of
the
switch
,
the
interruption
capacity
of
the
fuses
,
and
the bus
capacity
must
be
checked
.
kV
Amperes
Bll
kV
Maximum
Cont
.
Int
.
Momentary
Fault
Closing
4.76 600
_
600
40
,
000
61
,
000
80
,
000
40
,
000
61
,
000
80
,
000
61
,
000
80
,
000
61
,
000
80
,
000
40.000
61.000
61.000
40
,
000
61.000
61
,
000
61
,
000
61
,
000
61
,
000
61
,
000
60
600
4.76
600
60
4.76
600
600
60
15.0
600
600
95
15.0
600
600
95
15.0
600
600
95
4.76
1200
1200
60
4.76 1200
1200
60
15.0
1200
1200
95
15.0
1200
1200
95
For
all
electrically
operated
switches
refer
to
supplemental
instructions
.
Figure
1
.
QR
-
36
Indoor
Switch
Cubicle
.
Figure
2
.
OQR
-
36
Outdoor
Switch
Cubicle
.
Courtesy of NationalSwitchgear.com

Introduction
Page
2
General
Description
Receiving
and
Handling
The
type
QR
load
interrupter
switch
is
a
metal
enclosed
,
single
throw
,
gang
operated
switch which is used
on
distribu
-
tion
voltages
from
2.4
kV
to
13.8
kV
as
a
disconnect
and
circuit
interrupter
.
The
interrupter
switch
differs from
a
circuit
breaker
in
that
it
will
interrupt
its
rated
full
load
current
,
but
it
will
not
interrupt
overload
or
fault
currents
.
The
switch
may
be
un
-
fused
or
equipped
with
current
limiting
or non
-
current
limiting
power
fuses
to
provide
fault
current
interrupting capacity
.
The
switch
is
manually
operated
by
a
spring
-
over
-
center
,
stored
energy
operating
mechanism
through
a
chain
drive
and
is
equipped
with
an arc
chute and
quick
-
make
blade
.
The
quick
-
make
closing
and
quick
-
break
opening
energy
is
supplied
by
180
degree
rotation
of
the
operating
handle
.
The
resulting
high
speed
closing
and
opening
assures
safe
op
-
eration
and
long
life
.
An
eye
-
level
inspection
window is
provided
through
which
the
position
of
the
switch
may
be
visually
checked
.
The switch
operating
handle
is
mounted
on
the
front
of
the
cubicle
at
chest
level
.
The
metal enclosed
load
interrupter
switch is
available
in
three
versions
:
Standard
switch
—
two
-
position
(
open
/
closed
)
.
Duplex
switch
—
two
2
-
position
type
switches
bussed
together
on
the load side
,
to
provide
selection
of
either
of
2
incoming
services
.
Selector
switch
—
two
visually
identified
positions
of
"
line
1
.
"
and
“
line
2
.
"
This
switch consists
of
a
2
-
position
(
open
/
close
)
600
-
amp
interrupter
switch
in
series
with
a
2
-
position
(
line
1
/
line
2
)
disconnect
.
The
disconnect
is
mechanically
inter
-
locked
to
prevent
operation
when
the
interrupter
is
closed
.
The
interrupter
is
identical
to
single
feeder
units
and
interrupts
its
rated
load
current
.
The
disconnect
is
mounted
in
the
rear
of
the
compartment
and
is
operated
from
the
front
of
the unit
.
The
cubicles
are
securely
blocked
and braced
for
shipment
.
They
are
crated
,
boxed
or
covered
,
depending
on
shipping
conditions
.
Whatever the
method
of
shipment
,
every
precau
-
tion has been taken
to
insure
safe
arrival
of
the
equipment
.
If
special
handling
is
required
,
it
is
so
indicated
.
Although
all
moving
parts
are
blocked
,
avoid
rough
handling
when
un
-
loading
.
To
facilitate
unloading
,
four
(
4
)
angles
with
lift
holes
are
provided
at
the
top
of
the
switchgear
.
If
angles
are
removed
after
installation
use
mounting
hardware
to
fill
in
the
cubicle
top
If
the
angles
are
removed
from
outdoor
units
,
be
sure
to
replace
the
hardware
including
the weather
seal
washer
into
the
holes
In
the
roof
decks
.
To
position
with
rollers
,
use
the
shipping
skid where
possible
.
If
height
restrictions
required pipe
rollers
directly
under
the
cubicle
.
Use
a
minimum
of
3
rollers
per
section
.
Place
or
remove
the
equipment
from
the
skid
or
rollers
by
lifting
from
the
top
only
.
When
removing
the
rollers
,
lower
the
assembly
carefully
to
avoid
dropping
.
NOTE
Do
not
remove
wooden
skids when
either
rolling
units
or
moving
them
with
a
forklift
truck
.
A
CAUTION
h
Forklift
trucks
should
be
used
with
discre
-
tion
as
improper
lift
points
could
cause
extreme
damage
to
shipping
sections
.
Weights
When several load
center
substations
are
shipped
together
,
each
substation
is
numbered
.
All
crates
for
a
particular
sub
-
station
are
numbered
the
same
,
in
accordance
with
the
“
General
Arrangement
and
Floor
Plan
"
drawing
of
that
sub
-
station
.
INDOOR
QR
36
QR
36
Duplex
1400
lbs
.
2400
lbs
.
OUTDOOR
OQR
36
OQR
Duplex
1600
lbs
.
2800
lbs
.
ADDITIONS
Selector
Switch
14
“
Transition
Unit
300
lbs
.
300
lbs
.
Courtesy of NationalSwitchgear.com

Introduction
Page
3
Uncrating
NOTE
Be
careful
when
uncrating
equipment
.
The
use
of
sledge
hammers
and
crowbars
may
damage
the
finish
and
equip
-
ment
.
Use
nail
pullers
.
Check
all
packing
material
to
insure
against
accidentally
throwing
away
small
parts
.
Do
not
remove
identity
cards
until
the
switchgear
installation
is
complete
.
This
inspection
must
be
made
within
15
days
after
equipment
is
received
or
carrier
will
not
allow
claim
.
Also
report
any
shortage
or
damage
to
the
nearest
Siemens
sales
office
within
the
15
day
period
.
Unusual
circumstances
may
require
partial
shipment
of
equipment
.
In
these
cases
,
provisions
are
made
for
easy
installation
of
these
portions
of
the
complete
job
.
Inspection
As
soon
as
possible
after
uncrating
,
inspect
the
equipment
for
any
damage
which
may
have
occurred
in
transit
.
Also
check
the
shipping
manifest
to
be
sure
all
items
have
been
received
.
If
any
damage
or
shortage
is
detected
,
note
this
on
the
freight
bill
and
contact
the
carrier
immediately
.
Storage
If
the
switches
will
not
be
installed
immediately
,
uncrate
,
inspect
and
store
in
a
clean
,
dry
place
.
Before
placing
in
storage
,
inspect
and
grease
unfinished
steel
surfaces
,
etc
.
,
to
prevent
rusting
.
Protect
mechanism
,
contacts
,
etc
.
,
from
dust
and
grit
with
suitable
covers
.
Ener
-
gize
the
space
heaters
to
prevent
damage
from
condensa
-
tion
(
Space
heaters
are
standard
on
all
outdoor
units
and
are
available
as
an
option
on
some
indoor
switch
cubicles
.
)
Indoor
cubicles
are
neither
weatherproof
nor
drip
-
proof
;
therefore
,
store
them
indoors
.
If
they
must
be
stored
outdoors
,
provide
an
adequate
covering
,
and
place
a
heat
source
inside
the
cubicles
to
reduce
condensation
.
Remove
all
flammable
materials
from
near
the
heaters
before
turning
the
heaters
on
.
Figure
3
.
Lifting
or
Rolling
Cubicle
on
Pipe
n
Courtesy of NationalSwitchgear.com

Installation
Page
4
and
by
the
subsequent
expansion
of
the
bus
bars
.
Do
not
replace
them
with
standard
bolts
.
If
replacements
are
needed
,
use
SAE
Grade
5
heat
-
treated
bolts
.
Foundation
Whether
installing
the
switch
cubicle
on
an
existing
floor
or
on
a
new
floor
,
follow
the
sill
channel
and
anchor
bolt
dimen
-
sions
shown
on
the
‘
‘
General
Arrangement
and
Floor
Plan
"
drawing
.
Typical
floor
plans
for
indoor
and
outdoor
equipment
as
shown
in
Figure
4
and
5
Transformer
Connections
Ventilated
Dry
Transformers
In
line
-
ups
with
ventilated
dry
transformers
,
the
switch
is
placed
against
the
transformer
and
bolted
together
.
This
results
in
a
more
rigid
line
-
up
than
an
unbolted
assembly
and
can
also
correct
for
minor
variations
in
the
plumbness
of
these
adjacent
pieces
of
equipment
.
Figure
6
shows
location
of
bolt
holes
to
be
used
for
this
purpose
.
Two
holes
are
provided
on
load
interrupter
switch
units
;
the
two
holes
are
in
-
line
with
captive
nuts
provided
on
the
vent
dry
transformer
frame
and
are
,
,
plugged
,
,
with
.
38
-
16
hardware
prior
to
shipment
.
To
connect
the
transformer
to
the
switchgear
the
procedure
is
:
Bolting
Procedure
1
.
Remove
.
38
-
16
in
.
hardware
from
bolt
holes
shown
in
Figure
5
;
Note
that
this
hardware
is
hex
head
and
all
other
hardware
holding
side
plates
in
place
is
flat
head
type
.
Save
all
hardware
except
for
hex
nut
.
2
.
Move
switch
into
its
final
position
to
the
dry
type
trans
-
former
.
3
.
Inspect
front
and
rear
joints
between
switch
and
trans
-
former
.
If
units
are
perfectly
plumb
and
the
floor
is
perfect
-
ly
level
,
there
should
be
no
gap
evident
between
equipment
at
these
joints
.
If
there
is
a
gap
larger
than
.
13
”
(
3.30
mm
)
at
top
and
bottom
,
proceed
to
Step
4
;
if
no
crack
exists
,
proceed
to
Step
5
.
4
.
If
a
gap
larger
than
13
”
(
3.30
mm
)
appears
at
joints
,
it
will
be
necessary
to
level
and
plumb
all
equipment
,
and
not
try
to
draw
equipment
together
by
bolting
since
this
is
apt
to
disturb
cubicles
which
,
in
turn
,
may
cause
malfunc
-
tions
.
Check
plumb
on
all
equipment
to
determine
which
is
causing
the
problem
.
Once
this
has
been
determined
use
suitable
shims
under
the
equipment
base
to
reduce
the
gap
to
a
maximum
of
.
13
"
(
3.30
mm
)
.
5
.
Using
the
38
-
16
bolts
,
flat
and
lockwashers
removed
in
Step
1
,
bolt
the
switch
to
the
transformer
case
Conduit
Install
conduit
for
power
and
control
connections
in
the
area
indicated
on
the
"
General
Arrangement
and
Floor
Plan
.
”
Keep
conduit
ends
a
maximum
of
2
"
(
51
mm
)
above
the
finished
floor
to
prevent
wash
water
from
soaking
the
cables
.
Cap
and
tape
ends
to
keep
out
moisture
and
vermin
.
In
indoor
installations
,
conduit
ends
should
be
a
maximum
of
2
in
.
(
51
mm
)
above
the
unit
’
s
floor
line
.
Erection
Switch
cubicles
are
usually
shipped
as
single
groups
.
If
the
shipment
includes
several
groups
,
the
"
General
Arrangement
and
Floor
Plan
”
drawing
will
indicate
the
size
and
relative
location
of
each
group
.
Before
installing
,
make
sure
that
the
floor
is
level
within
1
/
16
"
(
1.5
mm
)
.
NOTE
When
connecting
the
switch
to
the
system
,
avoid
placing
any
stress
on
the
insulators
or
bushings
Bus
Bar
Joints
When
it
is
necessary
to
make
bus
bar
joints
in
the
field
,
all
required
hardware
is
furnished
.
Connections
are
made
with
1
/
2
in
.
(
12.7
mm
)
bolts
,
tightened
with
a
torque
wrench
to
50
-
75
-
foot
-
pounds
(
70
N
.
m
)
.
Tightening
the
bolts
as
specified
will
prevent
connections
from
becoming
loose
as
bus
bars
alternately
heat
and
cool
during
changes
in
load
.
Bolts
provided
for
these
connections
are
specially
designed
to
withstand
the
stresses
imposed
by
the
torque
specified
Courtesy of NationalSwitchgear.com

Installation
Page
5
36.00
35.13
*
—
28
00
—
—
4
01
36
00
34
00
28
00
—
Indoor
Outdoor
Space
available
In
top
of
bottom
of
unlti
for
customer
primary
and
secondary
cables
.
Customer
to
machine
top
plate
to
suit
.
—
4.00
200
-
88
-
Space
available
In
top
or
bottom
of
units
for
customer
primary
and
secondary
cablea
.
Customer
to
machine
top
plate
to
suit
.
T
*
i
12.00
12.00
i
t
60
13
60
12
Primary
Primary
?
59.22
’
57.23
'
Secondary
Secondary
r
5623
56.23
3
00
3.00
4.35
/
4
60
*
4
?
si
2.48
'
l
I
I
Ct
r
:
I
^
30.38
—
“
t
n
l
3
00
'
Location
of
holes
In
bottom
of
units
for
anchor
bolts
.
'
Location
of
holes
in
bottom
of
units
for
anchor
bolts
.
3.00
30.38
Figure
4
.
Plan
View
Cable
Areas
.
Customer
conduit
not
to
extend
more
than
2.0
*
max
.
above
floor
line
.
Customer
conduit
not
to
extend
more
than
8.0
*
above
floor
line
2
63
4
50
Location
of
suitable
anchor
bolts
.
Bolts
furnished
by
customer
.
.
63
dia
.
holes
furnished
In
front
and
rear
flange
.
Floor
Line
A
-
•
Floor
Line
s
>
+
-
Suitable
anchor
bolts
furnished
by
customer
..
63
die
.
holes
furnished
In
floor
of
cubicle
.
V
*
Outdoor
Bolting
Arrangement
H
.
V
.
Switch
“
OQR
”
Methods
of
Anchoring
—
Indoor
Foundation
should
be
prepared
per
general
arrangement
drawing
Floor
steel
and
bolts
not
furnished
with
switch
unless
covered
by
contract
NOTE
Welding
to
the
supporting
structure
steel
is
also
an
alternate
method
of
anchoring
indoor
and
outdoor
cubicles
Wekls
shall
be
located
adjacent
to
the
bolting
areas
shown
above
Method
of
Anchoring
—
Outdoor
Foundation
should
be
prepared
per
general
arrangement
drawing
Anchor
bolts
not
furnished
Fiaure
5
.
Boltina
Arranaements
Courtesy of NationalSwitchgear.com

Installation
Page
6
All
Covers
Bolt
to
Angles
Mounted
on
Cubicle
Side
Plate
Top
Cover
ts
Bolted
to
and
Overlaps
/
Center
Cover
Center
Cover
Slides
Over
Transformer
Flange
.
Overlaps
/
and
is
Bolted
to
Lower
Cover
.
;
i
Angle
Lower
Cover
has
"
"
Vented Bottom
Cover
Bolted
to
inside
Figure
6
.
Bolting
Procedure
for
Ventilated
Dry
Transformers
Figure
7
.
Flexible
Cable Connections
to
the
Transformer
.
Protected
by
a
Hood
Assembly
Liquid
Immersed
Transformers
Connections
to
liquid
immersed
transformers
are
protected
by
a
hood
assembly
,
consisting
of
a
hood
,
cover
,
and
an
angle
for
sealing
the
1
in
.
(
25
mm
)
space
between
the
switch
and
the
transformer
lower
throat
flange
shown
in
Figure
7
.
1
.
Remove
the
top
cover
.
2
.
Remove
the
center
cover
.
3
.
Loosen the
angle
and
adjust
to
the
lowest
position
.
4
.
Position
the
transformer
and
/
or
the
switchgear
according
to
the
dimensions
shown
on
the
general
arrangement
.
5
.
Connect
cable
to
the
transformer
.
Figure
8
.
6
Slide
angle
up
to contact
the
bottom
edge
of
the
throat
flange
.
7
.
Slide
the
center
cover
over
the
transformer
throat
and
reassemble
.
8
.
Replace
the
top
cover
.
9
.
For
Outdoor
applications
,
caulk the
vertical
seams
be
-
tween
the
covers
and the
switchgear
.
Precut
factory
installed cables
with
suitable cable
lugs
are
provided
for
making
connections
to
a
liquid
-
filled
transformer
,
as
shown
in
Figure
8
.
To
insure
ease
of
assembly
and
proper
fit
of
mating
parts
,
position
the
switch
and
transformer
accord
-
ing
to
dimensions indicated
on
the
“
General
Arrangement
’
*
drawing
.
Cable
Connections
See
typical
terminal
locations
,
Figure
9
A
-
E
.
before
making
cable connections
,
consider
phase
rotation
.
When the
switch
is
feeding
a
transformer
,
phasing
is
traced
from
the
trans
-
former
throat
.
For
typical
customer
’
s
cable connections
,
see
Figure
10
Refer
to
cable
manufacturer
’
s
recommendations
for
detailed
information
.
Courtesy of NationalSwitchgear.com

Installation
Page
7
Q
Lugs
Transformer
Flange
LIS
Fuses
}
\
Field
Connected
Cable
Lug
Transformer
38
00
i
Termination
to
Incoming
Line
Top
Feed
ii
h
i
i
E
90
00
14
00
R
)
•
f
111
70
04
50
"
42
04
\
Transition
Section
Transformer
Figure
9
A
.
Indoor
Upfeed
Cable
Connections
to
Switch
(
Rear
Access
Lugs
)
Figure
8
.
Cable
Connection
to
Liquid
Immersed
Transformer
V V
Potheads
LIS
Fuses
*
5
Transformer
h
-
22.00
-
H
38.00
90
00
v
Potheada
14
00
R
80
70
04
4204
Figure
9
B
.
Rear
Access
Potheads
Figure
9
C
.
Rear
Access
Downfeed
Lugs
Courtesy of NationalSwitchgear.com