GE HFA154 User manual
Instructions
GEK
-
45486
A
Supersedes
GEK
-
45486
MULTI
-
CONTACT
AUXILIARY
RELAYS
TYPE
HFA
154
These
instructions
do
not
purport
to
cover
ai
!
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
sufficiently
for
the
purchaser
'
s
purposes
,
the
matter
should
be
referred
to
the
General
Electric
Company
.
To
the
extent
required
the
products
described
herein
meet
applicable
ANSI
,
IEEE
and
NEMA
standards
;
but
no
such
assurance
is
given
with
respect
to
local
codes
and
ordinances
because
they
vary
greatly
Courtesy of NationalSwitchgear.com
GEK
-
45486
CONTENTS
PAGE
DESCRIPTION
3
APPLICATION
3
CHARACTERISTICS
3
RATINGS
.
.
Burdens
4
4
RECEIVING
,
HANDLING
AND
STORAGE
5
INSTALLATION
Mounting
and
Connections
Adjustments
5
5
5
PERIODIC
CHECKS
AND
ROUTINE
MAINTENANCE
Contact
Cleaning
5
6
SERVICING
AND
ADJUSTMENT
Contact
Adjustment
.
.
.
Pickup
6
6
7
RENEWAL
PARTS
7
2
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GEK
-
45486
MULTI
-
CONTACT
AUXILIARY
RELAY
TYPE
HFA
154
DESCRIPTION
The
HFA
154
relays
are
instantaneous
,
hinged
-
armature
,
multi
-
contact
,
electric
-
reset
,
auxiliary
relays
.
electric
-
reset
feature
.
The
HFA
154
relays
have
five
electrically
-
separate
contact
circuits
,
adaptable
for
either
circuit
-
opening
or
circuit
-
closing
applications
.
A
sixth
contact
is
used
to
open
the
reset
-
coil
circuit
.
Model
HFA
154
B
has
a
hand
-
reset
feature
in
addition
to
the
The
HFA
154
relays
are
available
HFA
154
B
(
-
)
F
or
HFA
154
E
(
-
)
F
,
HFA
154
B
(
-
)
H
or
HFA
154
E
(
-
)
H
.
4
.
Outline
and
panel
-
drilling
dimensions
are
shown
in
Figures
5
and
6
.
as
back
-
connected
,
semi
-
flush
mounted
relays
,
or
as
front
-
connected
,
surface
-
mounted
relays
,
Internal
connections
for
the
relays
are
shown
in
Figure
These
relays
have
special
long
-
life
operating
coils
.
APPLICATION
The
Type
HFA
154
relays
are
intended
for
application
where
it
is
desired
to
control
up
to
five
circuits
by
the
operation
of
a
single
auxiliary
relay
,
and
to
maintain
those
circuits
until
the
auxiliary
relay
is
electrically
reset
(
HFA
154
E
)
or
,
with
the
HFA
154
B
,
either
manually
or
electrically
reset
.
CHARACTERISTICS
The
HFA
154
relays
additional
feature
of
hand
reset
,
plunger
assembly
installed
through
the
transparent
cover
,
characteristics
of
HFA
154
relays
are
summarized
in
Table
I
.
are
multi
-
contact
auxiliary
relays
.
The
hand
-
reset
feature
is
accomplished
with
a
general
The
HFA
154
B
has
the
The
TABLE
I
Model
Number
No
.
of
Separate
Contact
Circuits
Additional
Characteristics
Contact
Arrangement
Tabl
e
HFA
154
B
HFA
154
E
5
Hand
Reset
II
5
II
Unless
the
relays
are
ordered
with
a
specific
contact
arrangement
,
they
will
be
shipped
with
all
circuit
-
closing
contacts
(
code
60
)
;
see
Table
II
.
3
Courtesy of NationalSwitchgear.com
GEK
-
45486
TABLE
II
Code
No
.
60
51
42
33
24
15
Contact
Arrangement
Position
No
.
1
b
a
a
a
aa
2
b
b
aa
a
a
3
bbb
b
aa
4
b
b
b
b
b
a
5
bb
b
aaa
6
+
a
aaa
a
a
a
=
Normally
open
b
=
Normal
1
y
closed
+
=
Used
to
open
reset
-
coil
circuit
RATINGS
*
The
Type
HFA
154
relays
are
available
with
coil
ratings
for
standard
voltages
up
to
250
VOC
and
for
120
and
240
volts
at
50
and
60
cycles
.
The
operating
coils
are
specifically
designed
for
long
life
,
even
when
operated
continuously
near
maximum
ambient
temperature
(
55
°
C
)
.
The
operating
coil
is
continuously
rated
,
but
the
reset
coil
has
a
five
(
5
)
-
second
intermittent
rating
.
The
current
-
closing
rating
of
each
contact
is
30
amperes
,
rating
is
12
amperes
continuous
,
or
30
amperes
for
one
minute
,
non
-
inductive
interrupting
capacity
of
each
contact
.
The
current
-
carrying
Table
III
lists
the
TABLE
III
DC
AC
Vol
ts
Amperes
Vol
ts
Amperes
12
30
115
30
24
15
230
20
32
10
460
15
48
8
575
10
125
3
250
1
BURDENS
The
operating
-
coil
burdens
listed
in
Table
IV
are
measured
with
the
relay
in
the
picked
-
up
position
,
at
rated
voltage
,
and
are
for
continuous
usage
.
TABLE
IV
DC
Coils
AC
Coils
Watts
Frequency
(
Cycles
)
Cold
Vol
t
-
Amperes
Hot
Watts
7.3
6.0
50
23
9
50
32
12
*
Revised
since
last
issue
4
Courtesy of NationalSwitchgear.com
GEK
-
45486
The
burdens
of
the
reset
coil
are
listed
in
Table
V
and
are
for
an
intermittent
rating
of
5
seconds
.
TABLE
V
DC
Coils
AC
Coils
Resistance
+
10
%
*
Rating
Frequency
Volt
-
Amps
250
740
220
740
50
220
125
185
60
180
110
185
RECEIVING
,
HANDLING
AND
STORAGE
These
relays
,
when
not
included
as
part
of
a
control
panel
,
will
be
shipped
in
cartons
designed
to
protect
them
against
damage
,
relay
,
examine
it
for
any
damage
sustained
in
transit
,
resulting
from
rough
handling
is
evident
,
file
a
damage
claim
at
once
with
the
transportation
company
and
promptly
notify
the
nearest
General
Electric
Sales
Offi
ce
.
Immediately
upon
receipt
of
a
If
injury
or
damage
Reasonable
care
should
be
exercised
in
unpacking
the
relay
in
order
that
none
of
the
parts
are
injured
nor
the
adjustments
disturbed
.
If
the
relays
are
not
to
be
installed
immediately
,
they
should
be
stored
in
their
original
cartons
in
a
place
that
is
free
from
moisture
,
dust
and
metallic
chips
.
Foreign
matter
collected
on
the
outside
of
the
case
may
find
its
way
inside
when
the
cover
is
removed
,
and
cause
trouble
in
the
operation
of
the
relay
.
INSTALLATION
MOUNTING
AND
CONNECTIONS
The
Type
HFA
154
relays
should
be
mounted
on
a
vertical
surface
.
The
outline
,
panel
-
drilling
diagrams
and
internal
connections
are
shown
in
Figures
4
,
5
,
and
6
.
ADJUSTMENTS
These
relays
have
been
calibrated
at
the
factory
and
under
normal
conditions
will
require
no
further
adjustments
.
If
further
adjustments
are
required
,
refer
to
the
SERVICING
section
of
this
book
.
PERIODIC
CHECKS
AND
ROUTINE
MAINTENANCE
In
view
of
the
vital
role
of
protective
relays
in
the
operation
of
a
power
system
,
it
is
important
that
a
periodic
test
program
be
followed
.
It
is
recognized
that
the
interval
between
periodic
checks
will
vary
depending
upon
environment
,
type
of
relay
and
the
user
'
s
experience
with
periodic
testing
,
accumulated
enough
experience
to
select
the
test
interval
best
suited
to
his
individual
requirements
,
it
is
suggested
that
the
points
listed
under
SERVICE
AND
ADJUSTMENT
be
checked
on
the
same
schedule
as
the
associated
protective
relays
.
Until
the
user
has
*
Revised
since
last
issue
5
Courtesy of NationalSwitchgear.com
GEK
-
45486
CONTACT
CLEANING
For
cleaning
fine
silver
relay
contacts
,
a
flexible
burnishing
tool
should
be
used
(
available
from
the
factory
)
.
This
consists
of
a
flexible
strip
of
metal
with
an
etched
-
roughened
surface
,
resembling
in
effect
a
superfine
file
.
The
polishing
action
is
so
delicate
that
no
scratches
are
left
,
yet
it
will
clean
off
any
corrosion
thoroughly
and
rapidly
.
The
flexibility
of
the
tool
ensures
the
cleaning
of
the
actual
points
of
contact
.
Do
not
use
knives
,
files
,
abrasive
paper
or
cloth
of
any
kind
to
clean
relay
contacts
.
SERVICING
AND
ADJUSTMENT
*
CONTACT
ADJUSTMENT
The
contacts
are
adjusted
at
the
factory
,
and
normally
should
not
require
readjustment
since
they
are
self
-
aligning
.
HFA
154
contact
circuits
can
be
changed
from
circuit
-
opening
to
circuit
-
cl
osi
ng
,
or
vice
versa
,
by
removing
the
fixed
contact
,
turning
it
over
and
restoring
it
to
its
place
.
If
for
any
reason
it
becomes
necessary
to
readjust
the
contacts
,
for
instance
if
a
contact
is
changed
from
circuit
opening
to
circuit
closing
,
the
following
checks
and
adjustments
should
be
made
;
Make
sure
that
all
contact
and
coil
studs
are
tight
.
1
.
Make
sure
that
the
armature
is
free
of
binding
when
operated
by
hand
,
braided
"
pigtail
"
lead
on
all
contacts
must
be
adjusted
to
exert
minimum
force
on
the
contacts
.
The
2
.
Adjust
the
contact
arms
so
that
the
normal
ly
-
open
contacts
make
approximately
simultaneously
when
the
relay
is
operated
by
hand
.
It
is
permissible
to
have
as
much
as
,
but
no
more
than
,
1
/
32
inch
gap
in
any
one
contact
when
the
first
one
to
close
is
just
making
contact
.
Also
,
the
normally
-
closed
contacts
must
open
at
approximately
the
same
time
.
These
adjustments
can
be
made
by
bending
the
moving
contact
arms
.
All
normally
-
open
"
a
"
contacts
must
have
a
wipe
of
3
/
64
to
3
/
32
of
an
inch
.
This
can
be
adjusted
by
forming
the
moving
contacts
with
the
tools
provided
along
with
the
go
/
no
go
gauges
.
The
adjustment
of
the
stop
screw
depends
on
whether
there
are
normally
-
closed
contacts
present
.
If
there
are
no
normally
-
closed
contacts
,
adjust
the
stop
screw
to
give
approximately
7
/
32
-
inch
contact
gap
between
moving
and
stationary
contact
.
If
there
are
normally
-
closed
contacts
,
use
the
7
/
32
-
inch
adjustment
as
a
reference
point
for
starting
the
wipe
adjustment
.
3
.
4
.
5
.
This
All
normally
-
cl
osed
"
b
"
contacts
must
have
a
wipe
of
0.067
+
.
007
inches
,
can
be
accurately
accomplished
by
using
the
stop
screw
for
the
fine
adjustment
.
6
.
Connect
a
continuity
light
to
each
of
the
normally
-
closed
contacts
.
7
.
*
Revised
since
last
issue
6
Courtesy of NationalSwitchgear.com
GEK
-
45486
Loosen
the
stop
-
screw
locknut
and
turn
the
stop
screw
clockwise
until
the
first
of
the
normally
-
closed
contacts
opens
.
8
.
Turn
the
stop
screw
an
additional
1
turn
and
all
the
normally
-
closed
contact
lights
should
go
out
,
indicating
that
the
normally
-
closed
contacts
are
adjusted
within
1
/
32
of
an
inch
overall
,
from
the
first
open
to
the
last
open
.
9
.
10
.
Turn
the
stop
screw
back
again
so
that
there
is
approximately
1
/
8
inch
between
the
end
of
the
stop
screw
and
the
armature
and
then
tighten
the
locknut
.
i
1
Recheck
pickup
after
the
above
changes
or
adjustments
.
-
L
J
.
PICKUP
*
The
main
coil
should
be
adjusted
to
pick
up
at
73
%
to
81
%
of
rated
voltage
for
AC
relays
,
and
55
%
to
61
%
of
rated
voltage
for
DC
relays
.
This
adjustment
may
be
obtained
by
unseating
the
adjusting
nut
at
the
lower
end
of
the
armature
and
turning
this
nut
in
a
clockwise
direction
to
raise
the
pickup
.
The
pickup
is
decreased
by
turning
the
nut
in
the
counterclockwise
direction
.
*
The
reset
coil
sould
pick
up
at
50
%
to
80
%
of
rated
AC
voltage
,
and
50
%
to
75
%
of
rated
DC
voltage
.
There
is
no
adjustment
available
to
alter
this
pickup
.
Since
the
reset
coil
is
rated
intermittently
,
care
should
be
exercised
when
applying
this
voltage
.
If
the
pickup
value
is
lower
than
50
%
of
rated
voltage
,
check
whether
the
reset
coil
resistance
is
within
tolerance
.
After
all
adjustments
are
completed
,
the
mounted
relay
should
be
operated
a
few
times
to
be
certain
that
the
mechanism
operates
freely
and
that
the
contact
surfaces
align
properly
.
Check
to
see
that
the
armature
latches
in
when
operated
by
hand
,
and
opens
readily
when
reset
.
RENEWAL
PARTS
When
ordering
renewal
parts
,
address
the
nearest
Sales
Office
of
the
General
Electric
Company
.
complete
nameplate
data
,
including
the
serial
number
,
of
the
relay
,
parts
publication
is
GEF
-
2757
.
Specify
the
name
of
the
part
wanted
,
quantity
required
,
and
The
renewal
*
Revised
si
nee
1
ast
issue
7
Courtesy of NationalSwitchgear.com
GEK
-
45486
PANEL
-
-
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5
INSULATING
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1
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/
16
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16
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16
Figure
6
(
0362
A
0576
-
6
)
Outline
and
Panel
-
Drilling
Diagram
for
HFA
154
Relays
for
Surface
Mounting
13
Courtesy of NationalSwitchgear.com
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