GE CR194 User manual

CR
194
Vacuum
Limitamp
Control
One
-
High
Controllers
with
Stationary
M
Vacuum
Contactors
Caution
:
Product
is
not
i
ount
Wended
for
nuclea
ruse
.
Utilization
Voltage
-
2.4
through
7.2
kVac
26
-
wide
and
34
-
wide
,
One
-
High
,
400
Amp
(
For
48
-
wide
,
800
Amp
see
GEH
-
5396
)
,
/
$
-
t
*
H
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4
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*
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Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Limitamp
400
Ampere
Control
Table
of
Contents
Introduction
3
4
Description
Equipment
Identification
-
CR
Number
Designation
.
.
,
.
4
General
.
.
.
.
.
;
Ratings
Basic
Impulse
Level
(
BIL
)
Dielectric
Test
Voltage
High
Voltage
Vacuum
Contactors
Blown
Fuse
Indicator
Manual
Disconnect
(
Isolating
Mechanism
)
Mechanical
Interlocking
Auxiliary
Enclosures
Dimensions
Power
Fuses
Power
Fuse
Conversion
Instructions
Starting
Autotransformers
8
c
Reactors
Installation
General
Receiving
Handling
Placement
of
Enclosure
Disassembly
Disassembly
Sequence
of
Operation
Grounding
Incoming
Power
Connections
Motor
Connections
Extra
-
width
Enclosure
Power
Cable
Termination
Control
Connections
Reassembly
Replacing
Contactor
In
Enclosure
Mechanical
Operation
Check
Operation
General
Test
-
power
Circuit
Preparation
of
Controller
for
Operation
Normal
Operation
Door
Opening
Procedure
Inspection
,
Maintenance
,
8
c
Servicing
Vacuum
Contactor
Isolating
Mechanism
and
Mechanical
Interlock
Checking
Procedures
-
*
Mechanical
Interlock
&
Manual
Isolator
Vacuum
Interrupter
Integrity
Test
Test
Procedure
Preventive
Maintenance
Guide
4
5
5
5
5
8
8
..
.
8
10
10
11
11
11
13
13
13
13
13
13
13
14
14
19
20
20
23
24
24
24
27
27
27
27
27
27
29
29
29
31
31
31
32
2
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Limitamp
400
Ampere
Control
The
essential
control functions
for
all
types
of
a
-
c
motors
consist
of
starting
,
stopping
,
and
overload
protection
.
Vacuum
Limitamp
controllers
also
include short
-
circuit
protection
,
but
other
functions
are
provided
in
each
controller
as
they
are
applicable
to
the
type
of
motor
being
controlled
(
such
as
synchronous
and wound
-
rotor
motors
)
.
Also
,
special
functions
are
provided
in
great
variety
as
may
be
required
for
particular
applications
.
These
instructions
were
prepared
as
a
guide
to
handling
,
installation
,
operation
and maintenance
of
all
one
-
high
,
400
Amp
types
of
Vacuum
Limitamp
controllers
.
This
includes
the
26
-
inch wide
one
-
high
and the
34
-
inch wide
one
-
high
controller
.
Figure
1
shows
a
26
-
inch wide
controller and
Figure
2
shows
a
34
-
inch
wide
synchro
-
nous
controller
.
The
intent
of
these instructions is
to
give
the Purchaser
the
necessary
general
information
to
identify
his control
-
ler
as
to
type
and function
,
to
describe
suggested
methods
of
installation
,
and
to
demonstrate
some
techniques
of
operation
and maintenance
.
The
Pur
-
chaser
should
interpret
these instructions
for
applicability
to
his
particular
controller
by referring
to
the
nameplate
data
on
the
controller
and
to
the
electri
-
cal
diagrams
supplied
with
the
controller
.
If
the
controller
is
for
a
synchronous
motor
,
these
instructions should
be
used
with
GEH
-
5201
.
For
applica
-
tions
questions
refer
to
GET
-
6840
.
For
details
on
high
-
voltage
contactor
refer
to
GEH
-
5306
.
Warning
:
Before
any
adjustments
,
servicing
,
parts
replacement
or
any
other
act
is
performed
requiring
physical
contact
with the
electrical
working
components
or
wiring
of
this
equipment
,
power
must
be
removed
from
all
sources
and
all
attached
rotating
equipment
must
have
come
to
a
complete
stop
.
User
personnel
must
be
completely familiar
with the
following
operating
and
maintenance
instructions
before
attempting
to
service
this
equipment
.
Warning
:
The
vacuum
interrupter
integrity
test
should be
performed
before
the
high
-
voltage
,
vacuum
contactor
is
energized
for
the
first
time
and
each
time
the
contactor
is
returned
to
service
after
maintenance
,
adjustment
,
or
repair
.
Failure
to
perform
this
test
may
result
in serious
injury
or
death
.
Introduction
Vacuum
Limitamp
controllers
are
designed
to
meet
NEMA
ICS
2
-
324
“
AC
General
Purpose
High
-
voltage
Class
E
Controllers
”
and
UL
347
requirements
,
and
may
be
described
as
metal
-
enclosed
high
-
interrupting capacity
,
vacuum
-
contactor
-
type
starter
equipments
with
manual
isolation
.
Individual
starters
and controllers
are
de
-
signed
for
specific
applications
;
the
components
and
functions
being
dictated
by
the Purchaser
specifications
and needs
.
Controllers
may
be
fused
or
unfused
.
Figure
1
.
26
-
inch wide
one
-
high
controller
.
Figure
2
.
34
-
inch wide
synchronous
controller
.
3
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Limitamp
400
Ampere
Control
Description
Equipment
Identification
-
CR
Number
Designation
Basic
type
designation
for
all
Vacuum
Limitamp
Control
equipment
is
CR
194
with
significant
alpha
-
numeric
suffixes
used
to
define
rating
,
function
,
contactor
type
and enclosure
type
.
CR
194
NEMA TYPE
1
=
NEMA E
1
(
Unfused
)
2
=
NEMA E
2
(
Fused
)
Starling
and
Spaed
Functions
—
Enclosure
A
—
26
"
1
-
HI
B
—
34
"
1
-
Hl
A
—
Single
-
speed
,
full
voltage
sB
—
Single
-
speed
,
reduced
voltage
reactor
type
b
—
Single
-
speed
,
reduced
voltage
autotransformer
type
D
—
Single
-
speed
,
part
winding
start
E
—
Single
-
speed
,
reduced
voltage
primary
resistor
G
—
2
speed
,
1
winding
full
voltage
H
—
2
speed
,
1
winding
reactor
reduced
voltage
J
—
2
speed
,
1
winding
autotransformer
reduced
voltage
N
—
2
speed
,
2
winding
full
voltage
P
—
2
speed
,
2
winding
reactor
reduced
voltage
Q
—
2
speed
,
2
winding
autotransformer
reduced
voltage
System
Voltage
7
—
2400
Volts
8
—
4200
Volts
2
—
7200
Volts
0
—
Other
Controlled
Apparatus
0
—
Synchronous
Motor
(
brushless
type
)
1
—
Induction
Motor
2
—
Synchronous
Motor
(
ring
type
)
3
—
Wound
Rotor
Motor
4
—
Transformer
Feeder
5
—
Capacitor
Feeder
6
—
Other
Rotation
and
Braking
1
—
Non
reversing
/
non
braking
2
—
Reversing
/
non
braking
4
—
Non
reversing
/
dynamic
braking
5
—
Reversing
/
dynamic
braking
7
—
Reversing
/
plugging
In
general
,
the
unit
enclosures
are
divided into
high
-
voltage
and
low
-
voltage
compartments
,
each
with its
own
separate
door
and
with interior
barriers
between the
two
.
See
Figures
3
,
4
,
and
5
.
To
open
the
high
-
voltage
compartment
door
,
the
power
must
be
disconnected
by
a
sequence
of
manual
operations
which
requires
de
-
energizing
the
high
-
voltage
contactor
,
operating
the
isolating
switch
handle
,
and
unlatching
the
door
*
Low
-
voltage
doors
may
be entered
without
disconnecting
the
power
;
however
,
this should
be
done
with
extreme
care
and
caution
The
upper
compartment
of
one
-
high
controllers
may
contain
a
low
-
voltage
panel
,
hinged
on
the
left side
,
which
acts
as
a
barrier
to
the
high
-
voltage
control
power
transformer
mounted
on
the
upper
rear cover
.
General
The basic
Vacuum
Limitamp
controller is
a
front
-
connected
assembly
of
components
and conductors
for
motor
starting
,
arranged
for
convenient
access
,
in
an
enclosure
which allows
space
and facilities
for
cable
termination
,
plus
safety
interlocking
of
doors and
isolator
to
prevent
inadvertent
entrance to
high
-
voltage
parts
.
No
back
access
is
required
.
This
equipment
may
be rated
up
to
7.2
kV
depending
on
the
contactor
and
fuse
ratings
.
Installation
,
operation
,
and
service
should
be
performed
only by
experienced
personnel
trained
in
this
class
of
equipment
.
4
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Limitamp
400
Ampere
Control
Interrupting
Ratings
At
Utilization
Voltage
Shown
Three
-
phase
Symmetrical
System
MVA
Maximum
Continuous
Amperes
(
RMS
)
Maximum
Volts
Class
E
1
Unfused
Class
E
2
Fused
2500
400
29
200
400
5000
50
400
400
7200
50
600
Basic
Impulse
Level
(
BIL
)
The
standard
BIT
rating
of
Vacuum
Limitamp
control
-
lers
is
60
kV
crest
(
design
rating
)
.
This
rating
excludes
dry
-
type
control
transformers
and
starting
reactors
or
au
totran
sformers
.
Dielectric
Test
Voltage
2
1
/
4
x
nameplate
voltage
plus
2000
volts
.
High
-
voltage
Vacuum
Contactors
The
vacuum
contactors
used
in
Vacuum
Limitamp
controllers
are
available
in
two
different
ratings
:
400
and
800
amperes
.
This
publication
covers
only
the
400
ampere
rating
.
The
contactors
are
similar
in
operation
but
very
different
in
size
and
rating
.
For
this
reason
they
are
not
directly
interchangeable
mechanically
.
See
Figure
7
.
The
contactors
are
easily
removable
from
the
controller
assembly
by
removing
a
few
bolts
that
hold
the
contactor
in
position
and
by
disconnecting
the
line
and
load
power
connections
.
The
auxiliary
contacts
and
the
coil
termi
-
nals
are
connected
by
means
of
a
removable
connector
that
is
retained
by
two
wing
nuts
.
By
removing
these
wing
nuts
,
the
wiring
harness
is
easily
disconnected
from
the
contactor
.
Refer
to
the
information
beginning
on
Page
13
of
this
publication
that
details
the
correct
method
for
contactor
removal
.
Figure
3
.
26
-
inch
wide
400
-
ampere
FVNR
starter
,
Ratings
Refer
to
the
panel
data
nameplate
(
see
Figure
6
)
on
front
of
the
enclosure
for
detailed
ratings
applicable
to
a
particular
controller
.
Equipment
basic
ratings
equal
or
exceed
NEMA
ICS
2
-
324
for
Class
E
2
Controllers
,
and
are
summarized
below
.
Approximate
Maximum
Horsepower
,
Current
8
c
Voltage
Ratings
2200
-
2400
Volts
4000
-
4800
Volts
7200
Volts
Synchronous
Motors
Synchronous
Motors
Synchronous
Motors
Continuous
Current
(
RMS
)
(
Amperes
)
Induction
Motors
Induction
Motors
Induction
Motors
0.8
PF
0.8
PF
1.0
PF
1.0
PF
0.8
PF
•
1.0
PF
400
Max
.
3450
1600
1600
3725
4800
2000
3450
4800
6000
Note
:
Above
ratings
apply
to
controllers
in
NEMA
1
,
vented
enclosures
,
at
4
CP
C
ambient
.
5
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Limitamp
400
Ampere
Control
mmm
.
.
fit
.
.
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Figure
6
.
Panel
data
nameplate
.
Figure
4
.
34
-
Inch
wide
400
-
ampere
FVNR
synchronous
starter
low
-
voltage
control
section
.
1
C
i
a
'
•
>
-
5
*
i
t
pa
f
1
i
feft
>
:
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-
.
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.
s
•
K
3
S
Figure
7
.
The
800
and
400
ampere
vacuum
contactors
.
Figure
5
.
34
-
inch
wide
400
-
ampere
FVNR
synchronous
starter
high
-
voltage
section
showing
the
400
-
ampere
contactor
.
c
6
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Limitamp
400
Ampere
Control
tent
-
AS
~
;
Figure
10
.
Anti
single
-
phase
contact
block
-
wiring
removed
for
clarity
.
Figure
8
.
High
-
voltage
compartment
showing
fuse
assembly
.
v
‘
.
*
-
VS
..
.
1
•
>
'
r
*
u
,
v
.
’
T
:
.
Figure
11
.
View
of
disconnect
switch
in
the
CLOSED
position
.
Barriers
are
removed
for
clarity
.
Figure
9
.
View
of
various
low
-
voltage
components
on
swing
panel
.
7
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Limitamp
400
Ampere
Control
Vacuum
Limitamp
Control
is
supplied
standard
with
bolt
-
in
type
fuses
.
The
fuse
holders
will
accommodate
2400
-
volt
through
7200
-
volt
fuses
.
The
length
of
these
types
of
fuses
vary
and
the
lower
fuse
mount
can
be
adjusted
to
the
proper
length
by
unbolting
the
mount
from
the
back
rail
and
remounting
it
in
the
proper
location
.
For
7200
-
volt
applications
,
the
fuses
require
a
slightly
different
lower
mounting
strap
and
the
top
fuse
mounting
strap
must
be
changed
.
This
requires
that
the
disconnect
switch
be
disassembled
.
See
Figure
8
.
Manual
Disconnect
(
Isolating
Mechanism
)
Vacuum
Limitamp
controllers
,
following
the
NEMA
definition
,
provide
a
means
for
manually
isolating
the
power
circuit
by
operation
of
a
disconnecting
device
.
The
disconnecting
mechanism
consists
of
a
quick
-
make
quick
-
break
,
non
-
load
break
disconnect
switch
(
see
Figures
11
through
13
)
which
is
controlled
by
the
operating
handle
(
see
Figure
6
)
.
A
fixed
barrier
(
Figure
13
)
,
with
a
viewing
window
,
is
supplied
to
provide
isolation
from
the
energized
bus
parts
.
There
are
no
The
vacuum
contactors
supplied
with
Vacuum
Limitamp
moving
shutters
that
require
maintenance
.
The
quick
-
Control
are
magnetically
operated
by
a
dc
coil
fed
by
an
make
,
quick
-
break
,
operating
mechanism
is
shown
in
integral
rectifier
and
timed
holding
circuit
.
A
base
Figure
15
.
mounted
contactor
timing
module
(
CTM
)
applies
full
voltage
to
the
contactor
coil
for
a
time
sufficient
to
fully
close
the
contactor
.
A
series
capacitor
is
then
switched
in
to
hold
the
contactor
closed
without
overheating
the
coil
.
Load
current
must
not
be
interrupted
by
the
disconnect
switch
.
A
mechanical
interlock
is
provided
to
ensure
that
the
contactor
is
in
the
open
position
before
the
operating
handle
can
be
actuated
.
Also
,
the
contactor
cannot
be
operated
while
the
operating
handle
is
being
moved
from
one
position
to
another
.
The
mechanical
isolator
will
accept
up
to
four
padlocks
to
prevent
operation
.
See
Figure
16
.
Blown
Fuse
Indicator
Blown
fuse
indication
is
activated
by
a
trip
bar
located
at
the
rear
of
the
top
fuse
holder
.
The
blown
fuse
indica
-
tor
requires
bolt
-
in
type
fuses
.
When
one
or
more
of
the
fuses
blow
,
a
small
indicator
moves
upward
from
the
top
center
of
the
fuse
to
indicate
which
fuse
has
blown
.
The
right
end
of
the
trip
bar
has
a
cam
that
operates
an
anti
-
single
phase
contact
which
is
wired
to
trip
the
controller
off
-
line
to
prevent
single
phasing
of
the
connected
load
.
See
Figure
10
.
Mechanical
Interlocking
Vacuum
Limitamp
equipment
is
designed
so
the
high
-
voltage
contactor
performs
all
normal
load
current
interrupting
.
The
current
-
limiting
fuses
generally
interrupt
the
fault
currents
.
Note
:
The
quick
-
make
quick
-
break
manual
isolator
will
not
interrupt
any
load
or
fault
current
.
'
A
mechanical
interference
system
is
included
with
all
Vacuum
Limitamp
controllers
(
mechanical
interlock
)
,
which
prevents
opening
of
the
manually
operated
isolating
contacts
unless
the
high
-
voltage
contactor
itself
is
demonstrated
by
magnet
position
to
be
already
open
.
This
is
to
ensure
that
the
contactor
has
opened
the
power
circuit
and
interrupted
the
current
before
the
disconnect
switch
may
be
operated
.
See
Figure
17
.
Warning
:
The
manual
isolator
should
never
be
forcibly
operated
.
Its
mechanical
interference
interlock
should
be
defeated
only
by
knowledgeable
and
qualified
electrical
mainte
-
nance
personnel
who
have
de
-
energized
all
poioer
feeding
the
controller
.
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12
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the
disconnect
switch
in
the
OPEN
position
.
Barriers
are
removed
for
clarity
.
8
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Umitamp
400
Ampere
Control
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13
.
.
Disconnect
switch
shown
with
barrier
In
place
.
Switch
shown
In
CLOSED
position
.
Figure
15
.
View
of
quick
-
make
quick
-
break
operator
.
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Figure
16
.
The
operating
handle
for
the
disconnect
may
be
padlocked
to
prevent
operation
.
Figure
14
.
View
of
handle
assembly
area
showing
test
power
interlocks
.
9
Courtesy of NationalSwitchgear.com

CR
194
Vacuum
Umitamp
400
Ampere
Control
Warning
:
There
is
no
emergency
condition
that
can
justify
forc
-
ible
operation
of
the
manual
isolator
with
the
main
contactor
closed
.
The
isolator
must
be
operated
only
with
the
contactor
open
.
All
high
-
voltage
doors
are
interlocked
by
mechanical
interference
mechanism
that
lock
high
-
voltage
doors
closed
until
the
disconnect
switch
is
in
the
OPEN
position
.
This
is
done
to
prevent
exposure
to
high
-
voltage
.
In
one
-
high
controllers
the
bottom
door
covers
the
high
-
voltage
compartment
.
Other
high
-
voltage
doors
may
be
full
height
to
cover
high
-
voltage
parts
located
in
auxiliary
sections
.
These
devices
may
include
reactors
,
auto
trans
-
formers
or
control
power
transformers
,
etc
.
Key
interlocking
is
frequently
used
in
lieu
of
mechanical
interference
mechanisms
to
lock
high
-
voltage
doors
closed
until
power
inside
has
been
removed
.
Non
-
loadbreak
switches
are
also
key
interlocked
to
prevent
operation
under
load
.
In
all
cases
of
key
interlocking
,
it
is
important
to
follow
the
operating
sequence
as
de
-
scribed
on
the
drawings
furnished
with
the
equipment
.
On
some
one
-
high
enclosure
designs
,
a
low
-
voltage
control
panel
mounted
by
hinges
to
the
left
side
of
the
enclosure
serves
as
a
barrier
to
isolate
the
high
-
voltage
control
power
transformer
and
fuses
.
An
interference
latch
,
shown
in
Figure
54
,
prevents
swinging
this
panel
out
until
the
high
-
voltage
door
is
opened
,
thus
ensuring
that
high
-
voltage
power
to
the
Control
Power
Trans
-
former
is
disconnected
.
V
-
i
'
'
.
-
V
'
-
'
-
VS
-
•
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-
X
-
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.
.
3
yV
.
Figure
17
.
Contactor
engagement
pawl
for
mechanical
interlock
.
Auxiliary
Enclosures
Many
sizes
of
enclosures
are
furnished
in
Vacuum
Limitamp
control
lineups
for
various
purposes
.
Some
are
tabulated
below
;
Wound
rotor
,
secondary
contactor
and
resistor
compartments
Bus
transitions
to
switchgear
Bus
transitions
to
transformers
Cable
entrance
compartments
Rectifier
exciter
compartments
Starting
reactor
or
autotransformer
compartments
Relay
and
metering
compartments
Instrument
transformer
compartments
Manual
switch
compartments
Refer
to
Figure
60
for
details
.
Dimensions
Vacuum
Limitamp
controllers
are
normally
30
-
inches
deep
and
90
-
inches
high
.
Width
varies
for
one
-
high
controllers
,
induction
motors
,
synchronous
motors
other
special
applications
,
or
cable
space
requirements
Refer
to
Figure
60
for
typical
outline
dimensions
.
Figure
18
.
Blown
fuse
Indicator
shown
in
the
NORMAL
position
.
>
10
Courtesy of NationalSwitchgear.com