GE HFA151 User manual

GEK
-
45484
B
INSTRUCTIONS
MULTI
-
CONTACT
AUXILIARY
RELAY
TYPE HFA
151
GE
Protection
and
Control
205
Great
Valley
Parkway
Malvern
,
PA
19355
-
1337
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GEK
-
45484
CONTENTS
PAGE
DESCRIPTION
3
APPLICATION
3
3
RATINGS
CHARACTERISTICS
4
BURDENS
4
CONSTRUCTION
4
RECEIVING
,
HANDLING
AND
STORAGE
5
ACCEPTANCE
5
PICKUP
5
INSTALLATION
5
MOUNTING
AND
CONNECTIONS
5
6
MECHANICAL CHECK
ELECTRICAL
TESTS
6
PERIODIC CHECKS
AND
ROUTINE
MAINTENANCE
6
SERVICING
6
CONTACT CLEANING
6
PICKUP
6
CONTACT ADJUSTMENT
7
RENEWAL
PARTS
8
These
instructions
do
not
purport
to
cover
all details
or
variations
in
equipment
nor
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
.
2
Courtesy of NationalSwitchgear.com

GEK
-
45484
MULTI
-
CONTACT
AUXILIARY
RELAY
TYPE
HFA
151
DESCRIPTION
The
HFA
151
relays
are
instantaneous
,
hinged
-
armature
,
multi
-
contact
,
auxiliary
relays
.
They
have
six
electrically
-
separate
contact
circuits
adaptable
for
either
circuit
-
opening
or
circuit
-
closing
application
.
This
arrangement
permits
a
number
of
operations
to
be
performed
simultaneously
.
The
internal
connection
diagram
for
HFA
151
relays
is
shown
in
Figure
4
.
The
HFA
151
relays
are
available
as
back
-
connected
semi
-
flush
mounted
relays
,
HFA
151
A
(
-
)
F
and
HFA
151
B
(
-
)
F
,
and
as
front
-
connected
surface
-
mounted
relays
,
HFA
151
A
(
-
)
H
and
HFA
151
B
(
-
)
H
.
The
outline
and
panel
drilling
diagrams
for
the
HFA
151
relays
are
shown
in
Figures
5
,
6
and
7
.
The
operating
coils
are
specially
designed
for
long
life
,
even
when
operated
continuously
near
maximum
ambient
temperature
.
APPLICATION
The
Type
HFA
151
relays
are
intended
for
application
where
it
is
necessary
to
perform
up
to
six
auxiliary
functions
simultaneously
by
the
operation
of
a
single
auxiliary
relay
.
If
more
than
six
circuits
are
to
be
controlled
,
the
coils
of
two
HFA
relays
may
be
connected
,
in
series
(
DC
only
)
,
or
in
parallel
.
RATINGS
HFA
151
relays
are
available
with
coil
ratings
for
120
and
240
volts
,
50
or
60
cycles
,
and
for
up
to
250
volts
DC
.
The
coils
are
designed
for
long
life
,
even
when
operated
continuously
near
maximum
ambient
temperature
of
55
oC
.
The
current
-
closing
rating
of
each
contact
is
30
amperes
.
The
current
-
carrying
rating
is
12
amperes
continuous
or
30
amperes
for
one
minute
.
Table
I
lists
the
non
-
inductive
interrupting
capacity
of
each
contact
.
TABLE
I
DC
AC
VOLTS
AMPERES
VOLTS
AMPERES
12
30
115
30
24
15
230
20
32
10
460
15
48
8
575
10
125
3
250
1
3
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GEK
-
45484
CHARACTERISTICS
The
HFA
151
A
relay
is
self
reset
and has
an
instantaneous
dropout
.
The
HFA
151
B
relay
is
hand
reset
by
means
of
a
plunger
assembly
installed
through
the
transparent
cover
.
Unless the
relays
are
ordered
with
a
specific
contact
arrangement
,
they
will
be
shipped
with
six
circuit
-
closing
contacts
(
Code
60
)
.
The
contact
arrangement
can
be
easily changed
to
provide
any
of
the
combinations
shown
in
Table
II
.
TABLE
II
CODE
NO
.
60 51
42
33
24
15
06
POSITION
NO
.
CONTRACT
ARRANGEMENT
1
b
a a a a
a
a
2
b b b
a
a a
a
3
b b b
b b
a a
4
bb
b b
b b
a
5
bb
b b
a
a
a
6
b b
a
a
aa
a
Note
:
a
=
Normally
Open
b
=
Normally
Closed
Approximate
pickup
times
times
to
close
a
normally
-
open
contact
are
33
milliseconds
or
less
for
AC
relays
and
84
milliseconds
or
less
for
DC
relays
.
BURDENS
Burdens
with
the
relay
in
the
picked
-
up
position
and
at
rated
voltage
are
1
isted
in
Tabl
e
III
.
TABLE
III
DC
COILS
AC
COILS
WATTS
FREQUENCY
(
CYCLES
)
VOLT
-
AMPERES
COLD
HOT
WATTS
7.8
6.0
50
23
9
60
32
12
CONSTRUCTION
The
HFA
151
A
(
-
)
F
and
HFA
151
B
(
-
)
F
relays
are
assembled
in
a
back
-
connected
case
with
a
flange
for
semi
-
flush
mounting
.
See
Figures
1
,
2
,
and
5
.
The
HFA
151
A
(
-
)
H
and
HFA
151
B
(
-
)
H
are
assembled
in
a
front
-
connected
case
for
surface
mounting
.
See
Figures
3
and
6
and
7
;
otherwise
they
are
the
same
as
the
semi
-
flush
mounted
relays
.
They
all
have
six
electrically
-
separate
contact
circuits
adaptable
for
either
circuit
-
opening
or
circuit
-
closing
application
;
see
Figure
4
.
4
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GEK
-
45484
HFA
151
B
is
hand
reset
by
means
of
a
plunger
HFA
151
A
relay
is
self
reset
,
assembly
installed
through
the
transparent
cover
.
The
contact
circuits
are
opened
and
closed
by
moving
contact
arms
controlled
by
a
hinge
-
type
armature
,
which
in
turn
is
actuated
by
an
operating
coil
and
restrained
by
an
adjustable
control
spring
.
The
long
-
life
coils
are
capable
of
continuous
operation
near
maximum
ambient
temperature
.
RECEIVING
,
HANDLING
AND
STORAGE
These
relays
,
when
not
included
as
a
part
of
a
control
panel
,
will
be
shipped
in
cartons
designed
to
protect
them
against
damage
.
Immediately
upon
receipt
of
a
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
.
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
.
ACCEPTANCE
Check
the
nameplate
stamping
to
make
sure
that
the
model
number
and
rating
of
the
relay
agree
with
the
requisition
.
Make
sure
that
the
contact
arrangement
agrees
with
the
code
specified
on
the
requisition
.
Check
that
there
are
no
broken
or
cracked
parts
or
other
signs
of
physical
damage
.
Check
that
the
armature
is
free
of
binding
when
operated
by
hand
.
PICKUP
The
relays
are
adjusted
at
the
factory
to
pick
up
at
73
%
to
81
%
of
rating
for
AC
coils
and
55
%
to
61
%
of
rating
for
DC
coils
.
Normally
these
adjustments
should
not
change
;
if
it
is
necessary
to
readjust
the
relay
,
see
the
instructions
in
the
section
on
SERVICING
.
INSTALLATION
MOUNTING
AND
CONNECTIONS
Type
HFA
151
relays
should
be
mounted
on
a
vertical
surface
,
panel
drilling
diagrams
are
shown
in
Figures
5
and
6
.
diagram
is
shown
in
Figure
4
.
The
outline
and
The
internal
connection
5
Courtesy of NationalSwitchgear.com

GEK
-
45484
MECHANICAL
CHECK
Check
that there
are
no
broken
or
cracked
parts
or
other
signs
of
physical
damage
.
Check
that the
armature
is
free of
binding
when
operated
by
hand
.
1
.
2
.
Check
condition
of
relay
contacts
.
3
.
ELECTRICAL
TESTS
The
relays
are
adjusted
at
the
factory
to
pick
up
at
73
%
to
81
%
of
rating
for
AC
coils and
55
%
to
61
%
of
rating
for DC
coils
.
After
the
relay
has
been
mounted
it
should
be
operated
a
few
times
to
be
certain that the mechanism
operates
freely
,
that
the
contact
surfaces
align
properly
and that
self
-
reset
models
drop
out
quickly
when
the
coil
is de
-
energized
.
Check
latching
in
and
reset
of
hand
-
reset
models
.
PERIODIC
CHECKS
AND
ROUTINE MAINTENANCE
In
view
of
the
vital
role
of
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
.
Until the
user
has
accumulated
enough
experience
to
select
the
test
interval
best
suited
to
his individual
requirements
,
it
is
suggested
that the
points
listed
under
INSTALLATION
be
checked
on
the
same
schedule
as
the
associated
protective
relays
.
If
maintenance
or
readjustment
is
required
,
see
the
section
on
SERVICING
.
SERVICING
CONTACT
CLEANING
For
cleaning
relay
contacts
,
a
flexible
burnishing
tool should
be used
.
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
throughly
and
rapidly
.
Its
flexibility
ensures
cleaning
of
the
actual
points
of
contact
.
Do
not
use
knives
,
files
,
abrasive
paper
or
cloth
of
any
kind
to
clean
relay
contacts
.
PICKUP
The
relays
are
adjusted
at
the
factory
to
pick
up
at
73
%
to
81
%
of
rating
for
AC
coils
and
55
%
to
61
%
of
rating
for DC
coils
.
Normally
these
adjustments
should
not
change
;
if
it
is
necessary
to
readjust
the
relay
,
the
armature
adjusting
nut
should
be
lifted
1
/
16
inch
,
turned clockwise
to
raise
pickup
or
counter
clockwise
to
lower
pickup
,
and
then
reseated
in
the
hexagonal
groove
in
the
armature
tailpiece
.
6
Courtesy of NationalSwitchgear.com

GEK
-
45484
CONTACT
ADJUSTMENT
The
contacts
are
adjusted
at
the
factory
,
and
normally
should
not
require
readjustment
since
they
are
self
-
aligning
.
HFA
151
contact
circuits
can
be
changed
from
circuit
-
opening
to
circuit
-
closing
,
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
:
1
.
Make
sure
that
all
contact
and
coil
studs
are
tight
.
2
.
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
3
Make
mechanical
contact
adjustments
as
follows
:
3.1
.
Normally
-
Open
Contacts
,
Wipe
and
Gap
(
Normally
-
open
contacts
must
be
adjusted
before
normally
-
closed
contacts
.
)
The
moving
contact
arms
must
be
adjusted
so
that
the
normally
-
open
contacts
make
approximately
simultaneously
(
±
0.008
)
when
the
relay
is
operated
by
hand
.
All
normally
-
open
contacts
must
have
a
wipe
of
3
/
64
to
3
/
32
inches
.
The
contact
gap
must
be
approximately
7
/
32
inch
.
This
can
be
adjusted
as
follows
:
a
.
i
)
Insert
a
0.058
gage
between
the
armature
and
pole
face
and
close
the
armature
.
ii
)
Bend
the
left
-
hand
moving
contact
to
just
light
the
continuity
lamp
.
iii
)
Remove
the
0.058
gage
and
bend
the
remaining
moving
contacts
so
that
all
moving
contacts
make
at
approximately
the
same
time
.
iv
)
To
check
performance
,
turn
the
stop
screw
in
until
one
contact
continuity
lamp
is
lit
.
Turn
stop
screw
in
an
additional
1
/
2
turn
and
all
continuity
lamps
should
be
lit
.
Back
off
the
stop
screw
to
obtain
at
least
1
/
4
inch
contact
gap
.
v
)
Insert
a
7
/
32
-
inch
gage
between
any
of
the
normally
-
open
moving
and
stationary
contacts
,
and
turn
the
stop
screw
clockwise
until
the
continuity
lamp
lights
.
Lock
the
stop
screw
in
this
position
with
the
locking
nut
.
3.2
.
Normally
-
Closed
Contact
Gap
and
Wipe
The
moving
contact
arms
must
be
adjusted
so
that
the
normally
-
closed
contacts
make
approximately
simultaneously
{
-
0.008
)
when
the
relay
is
a
.
7
Courtesy of NationalSwitchgear.com

GEK
-
45484
operated
by
hand
.
The
wipe
and
gap
are
automatically
set
by
the
formation
of
the
stationary
contacts
and
the
strength
of
the
control
spring
.
Adjustments
can
be
made
as
follows
:
Turn
the
stop
screw
clockwise
until
the
first
normally
-
closed
contact
opens
.
ii
)
Turn
the
stop
screw
an
additional
1
/
2
turn
clockwise
.
All
normally
-
closed
contacts
should
be
open
.
iii
)
Turn
the
stop
screw
counterclockwise
until
there
is
approximately
1
/
8
inch
gap
between
the
stop
screw
and
armature
.
Lock
the
stop
screw
1
n
this
position
.
Recheck
pickup
after
the
above
changes
or
adjustments
.
i
)
4
.
RENEWAL
PARTS
It
is
recommended
that
sufficient
quantities
of
renewal
parts
be
carried
in
stock
to
enable
the
prompt
replacement
of
any
that
are
worn
,
broken
,
or
damaged
.
When
ordering
renewal
parts
,
address
the
nearest
Sales
Office
of
the
General
Electric
Company
,
specify
quantity
required
,
name
of
the
part
wanted
,
and
the
complete
model
number
of
the
relay
for
which
the
part
is
required
.
Since
the
last
edition
,
Figure
5
has
been
changed
.
8
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GEK
-
45484
tMmit
&
iUEmiC
M
*
P
-
D
nuns
SUiUTW
»
»
L
*
2
ft
»
«
.
*
Ft
Semi
-
flusb
Mounting
for
With
Flange
cted
Relay
View
)
BacR
-
eon
(
)
®
HFM
-
51
[
Front
[
8042731
)
1
Figure
9
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GEK
-
45484
-
•
*
«
41
t
-
t
(
Side
View
)
HFA
151
Relay
2
(
8042732
)
Figure
10
Courtesy of NationalSwitchgear.com