GE POWER/VAC 13.8 User Manual

When
lead
or
other
conducting
sheath
cable
,
or
cable
with
shielding
tape
or
braid
is
used
,
it
is
recommended
that
the
sheath
or
shield
be
grounded
solidly
to
the
switchgear
ground
bus
.
The
ground
lead
should
be
bonded
to
the
sheath
or
shield
on
the
side
of
the
current
transformer
away
from
the
primary
terminals
.
In
cases
where
the
ground
can
-
not
be
applied
before
the
cable
passes
through
the
trans
-
former
,
bond
the
lead
to
the
sheath
or
shield
between
the
transformer
and
the
primary
terminals
.
The
ground
con
-
ductor
must
then
be
passed
back
along
the
cable
path
through
the
current
transformer
before
being
connected
to
the
ground
bus
.
Where
potheads
are
used
in
units
provided
with
ground
fault
current
transformers
,
the
pothead
mountings
must
be
insulated
from
ground
.
current
-
carrying
capacity
equal
to
that
of
the
switchgear
ground
bus
.
It
is
very
important
that
the
equipment
be
properly
grounded
to
protect
the
operator
from
injury
when
short
circuits
or
other
abnormal
occurrences
take
place
,
and
to
ensure
that
all
parts
of
the
equipment
,
other
than
live
parts
,
are
at
ground
potential
.
LIGHTNING
PROTECTION
It
will
be
the
responsibility
of
the
purchaser
to
specify
suitable
surge
arresters
to
protect
the
switchgear
from
damage
due
to
lightning
.
The
General
Electric
Company
’
s
recommendations
as
to
the
types
of
circuits
requiring
pro
-
tection
,
and
a
list
of
recommended
surge
arresters
,
are
con
-
tained
in
Bulletin
GET
-
6460
,
copies
of
which
are
available
upon
request
.
When
surge
arresters
are
furnished
,
the
primary
cable
terminal
will
be
insulated
at
the
factory
unless
it
must
be
disconnected
for
shipment
.
When
this
connection
is
com
-
pleted
in
the
field
it
will
be
necessary
to
insulate
the
primary
connection
before
the
switchgear
is
energized
.
CONTROL
CABLES
When
control
cables
enter
the
unit
from
below
,
the
con
-
duit
should
not
extend
more
than
one
inch
above
the
floor
.
The
control
cables
may
be
pulled
through
the
conduits
be
-
fore
or
after
the
switchgear
is
installed
,
whichever
is
more
convenient
.
SURGE
SUPPRESSORS
General
Electric
surge
suppressors
are
provided
on
each
feeder
circuit
.
These
are
self
-
contained
units
which
require
no
maintenance
.
Control
cables
should
be
guided
toward
the
side
sheet
and
run
behind
the
track
assembly
as
shown
in
Fig
.
36
.
This
will
prevent
the
circuit
breaker
or
roll
-
out
carriage
from
interfering
.
Connect
the
cables
to
the
terminal
blocks
in
accordance
with
the
wiring
diagrams
furnished
for
the
requisition
.
The
cables
from
the
control
power
source
to
the
switch
-
gear
should
be
large
enough
to
avoid
excessive
voltage
drop
when
the
circuit
breakers
are
operated
.
See
testing
instruc
-
tions
.
ROOF
ENTRANCE
BUSHING
When
assembling
the
connection
bar
end
of
roof
entrance
bushing
inside
the
switchgear
and
other
terminations
where
porcelain
insulators
are
used
,
insulation
should
be
applied
as
shown
in
TAPE
INSULATION
INSTRUCTIONS
FOR
5
&
15
kV
.
>
TESTING
AND
INSPECTION
Where
units
have
been
split
for
shipment
,
any
control
or
other
secondary
leads
which
must
connect
across
the
split
will
be
arranged
with
terminal
blocks
at
the
top
or
on
the
side
sheet
so
that
the
wires
can
be
reconnected
.
The
wires
will
be
cut
to
length
and
formed
before
being
folded
back
so
that
a
minimum
of
time
will
be
required
for
reconnecting
them
.
After
the
equipment
has
been
installed
and
all
connec
-
tions
made
,
it
should
be
tested
and
inspected
before
putting
it
in
service
.
Although
the
equipment
and
devices
have
been
completely
tested
at
the
factory
,
a
final
field
test
should
be
made
to
be
sure
that
the
equipment
has
been
properly
in
-
stalled
and
that
all
connections
are
correct
and
have
not
become
loose
in
transportation
.
The
primary
equipment
should
be
completely
de
-
energized
while
the
tests
are
in
progress
.
Directions
for
testing
devices
such
as
relays
,
instruments
and
meters
are
given
in
the
instruction
book
furnished
for
each
device
.
The
settings
of
the
protective
relays
must
be
coordinated
with
the
other
relays
on
the
system
and
there
-
fore
these
relays
must
be
set
by
the
purchaser
.
General
instructions
on
setting
the
relays
are
given
in
the
relay
in
-
struction
books
.
Special
instruction
books
are
furnished
for
complicated
automatic
equipment
,
describing
the
sequence
of
operation
of
the
devices
required
to
perform
the
desired
function
.
GROUND
BUS
Where
the
equipment
is
shipped
in
more
than
one
section
,
the
ground
bus
must
be
connected
by
using
the
splice
plates
furnished
with
the
equipment
.
Assemble
the
ground
bus
joints
as
outlined
under
CONNECTIONS
.
The
ground
bus
is
bolted
to
the
rear
of
the
frame
near
the
bottom
.
It
is
arranged
so
that
connections
to
the
station
ground
can
be
made
in
any
vertical
section
.
Ground
bus
risers
are
provided
in
each
cable
compartment
to
provide
a
fe
convenient
place
to
ground
cable
armor
,
cable
sheath
,
~
shields
or
ground
wires
.
The
switchgear
ground
bus
must
be
connected
to
the
station
ground
bus
by
a
conductor
having
a
35
Courtesy of NationalSwitchgear.com

GE POWER/VAC 13.8 Specifications

General

Brand	GE
Model	POWER/VAC 13.8
Category	Switch
Language	English