GE HFA54 User manual

GEI
-
68720
H
INSTRUCTIONS
MULTI
-
CONTACT
AUXILIARY
RELAY
TYPE
HFA
54
GE
Meter
and
Control
205
Great
Valley
Parkway
Malvern
,
PA
19355
-
0715
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GEI
-
68720
CONTENTS
PAGE
DESCRIPTION
3
APPLICATION
3
RATINGS
3
CHARACTERISTICS
4
BURDENS
6
RECEIVING
,
HANDLING
AND
STORAGE
7
INSTALLATION
7
PERIODIC
CHECKS
AND
ROUTINE
MAINTENANCE
7
SERVICING
AND
ADJUSTMENTS
8
CONTACT
CLEANING
8
CONTACT
ADJUSTMENT
8
PICKUP
9
RENEWAL
PARTS
9
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
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GE
1
-
68720
MULTI
-
CONTACT
AUXILIARY
RELAY
TYPE
HFA
54
DESCRIPTION
The
HFA
54
relays
are
instantaneous
,
hinged
-
armature
,
multi
-
contact
,
electric
-
reset
,
auxiliary
relays
.
Some
of
the
models
are
also
available
with
a
hand
reset
feature
in
addition
to
the
electric
reset
feature
.
They
have
five
or
six
el
ectrical
ly
-
separate
contact
circuits
adaptable
for
either
circuit
-
opening
or
circuit
-
closing
-
appl
ications
.
The
HFA
relays
are
available
for
front
or
back
connection
.
The
front
-
connected
relays
are
suitable
for
surface
mounting
only
.
The
back
-
connected
relays
are
suitable
for
either
surface
mounting
or
semi
-
flush
mounting
.
Outline
and
panel
drilling
dimensions
are
shown
in
Figures
7
-
10
.
Internal
connections
for
the
rel
ays
are
shown
in
Figures
4
,
5
,
and
6
.
APPLICATION
The
HFA
relays
are
electric
-
reset
,
hinged
-
armature
,
instantaneous
auxiliary
relays
that
are
suitable
for
application
where
the
operating
characteristics
and
ratings
as
described
in
this
book
are
required
.
RATINGS
The
TYPE
HFA
relays
are
available
with
coil
ratings
for
standard
voltages
up
to
575
volts
at
25
,
50
or
60
cycles
,
and
up
to
250
volts
DC
.
The
operating
coil
is
continuously
rated
but
the
reset
coil
has
a
five
(
5
)
second
intermittent
rating
.
The
current
-
carrying
Table
I
1
ists
the
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
.
TABLE
I
AC
DC
AMPERES
AMPERES
VOLTS
VOLTS
30
115
12
30
20
230
24
15
15
460
10
32
10
8
575
48
125
3
1
250
3
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GEI
-
68720
CHARACTERISTICS
The
HFA
54
relays
are
multi
-
contact
auxiliary
relays
,
some
of
them
available
with
the
additional
feature
of
both
electric
and
hand
reset
.
The
hand
reset
feature
is
accomplished
with
a
plunger
assembly
installed
through
the
transparent
cover
.
Some
of
the
stationary
contacts
(
called
long
wipe
)
are
built
with
a
special
offset
so
that
when
a
circuit
-
opening
contact
and
circuit
-
closing
contact
are
used
as
a
pair
,
a
make
-
before
-
break
circuit
results
.
The
use
of
these
contacts
requires
an
additional
strong
contact
spring
to
minimize
contact
bounce
and
ensure
contact
overlap
.
These
contacts
are
designated
as
long
-
wipe
contacts
.
Unless
the
relays
are
ordered
with
a
specific
contact
arrangement
,
they
will
be
shipped
with
six
(
6
)
circuit
-
closing
contacts
(
code
60
)
.
However
,
the
HFA
54
D
and
HFA
54
K
relays
are
available
with
contact
code
33
only
,
as
given
in
Table
V
.
The
general
characteristic
of
HFA
54
relays
are
summarized
in
Table
II
.
TABLE
II
No
.
Model
Separate
Contact
Circuits
Addi
tiorial
Characteristics
Contact
Arrangement
Tab
!
e
No
.
HFA
54
B
5
Hand
Reset
III
HFA
54
C
5
Hand
Reset
and
Mechanical
Target
III
HFA
54
D
5
Hand
Reset
with
Over
-
lapping
Contacts
in
Positions
2
and
3
V
HFA
54
E
5
III
HFA
54
H
6
Hand
Reset
IV
HFA
54
J
6
Hand
Reset
and
Mechanical
Target
IV
HFA
54
K
6
Hand
Reset
with
Over
-
lapping
Contacts
in
Positions
2
and
3
V
HFA
54
L
6
IV
HFA
54
M
4
Relay
Contact
#
3
Opens
Operating
Coil
when
Relay
Picks
Up
VI
HFA
54
N
4
Similiar
to
54
M
except
with
Additional
Feature
of
Hand
Reset
VI
4
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GEI
-
68720
TABLE
III
(
HFA
54
B
,
C
,
E
)
J
H
24
15
42
33
CODE
NO
.
60
CONTACT
ARRANGEMEN
1
POSITION
NO
.
b
1
a
a
a
a
a
b
2
b
a
a
aa
b
3
b
b
b
a
a
b
4
b
bb
b
a
b
bb
5
a
aa
+
6
a
aaa
aa
a
=
Normal
1
y
Open
b
=
Normally
Closed
+
=
Used
to
Open
Reset
Coil
Circuit
ai
=
Normally
Open
,
Long
Wipe
bi
=
Normally
Closed
,
Long
Wipe
TABLE
IV
(
HFA
54
H
,
J
,
L
)
I
24
06
15
CODE
NO
.
51
42
33
60
POSITION
NO
.
CONTACT
ARRANGEMENT
b
b
1
a
a
a
a
a
bb
b
2
aa
a
a
b
b
b
b
b
3
a
a
b
b
bb
b
4
b
a
b
bb
b
5
aa
a
b
6
a
aaa
aa
TABLE
V
(
HFA
54
D
,
K
)
CODE
NO
.
33
CONTACT
ARRANGEMENT
POSITION
NO
.
1
a
2
al
3
bl
b
4
5
b
6
+
a
TABLE
VI
HFA
54
M
,
N
)
4
2
3
CODE
NO
.
1
CONTACT
ARRANGEMENT
POSITION
NO
.
1
a
a
a
a
b
2
a
a
a
3
h
bl
bl
bl
4
bl
b
b
a
5
b
aa
a
6
a
a
aa
5
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GEI
-
68720
The
HFA
54
N
is
similar
to
the
HFA
54
M
except
that
it
has
an
additional
feature
of
hand
reset
.
The
internal
connections
diagram
of
the
HFA
52
M
and
HFA
54
N
shows
an
external
capacitor
connected
in
parallel
with
the
operating
coil
and
an
external
resistor
connected
in
series
with
the
operating
coil
and
external
capacitor
.
The
purpose
of
the
external
resistor
is
to
limit
the
power
surge
through
the
tank
circuit
of
the
operating
coil
and
external
capacitor
.
The
normally
-
closed
long
-
wipe
contact
at
Position
3
opens
with
a
delay
after
the
operating
coil
has
been
fully
energized
so
that
the
external
capacitor
can
be
fully
charged
before
the
long
-
wipe
contact
opens
the
circuit
and
the
applied
voltage
is
cut
off
.
However
,
the
charged
external
capacitor
has
sufficient
energy
to
back
up
the
operating
coil
,
to
ensure
proper
latch
-
holding
of
the
armature
.
See
Figs
.
11
,
12
,
and
13
for
outlines
of
the
external
capacitor
and
resistor
.
BURDENS
The
operating
coil
burdens
listed
Table
VII
are
measured
with
the
relay
in
the
picked
up
position
,
at
rated
voltage
,
and
are
for
continuous
rating
,
and
DC
burden
table
,
VIII
,
applies
to
all
HFA
relays
except
HFA
54
M
and
HFA
54
N
,
whose
burdens
are
listed
in
Table
IX
.
The
common
AC
TABLE
VII
DC
COILS
AC
COILS
WATTS
FREQUENCY
CYCLES
VOLT
-
AMPERES
WATTS
COLD
HOT
7.3
6.0
25
4
10
50
23
9
60
32
12
TABLE
VIII
DC
COILS
AC
COILS
RATING
RESISTANCE
FREQUENCY
VOLT
-
AMPS
250
590
25
55
125
160
50
220
62.5
47.5
60
180
48
29
32
12
24
7.1
12
2.1
6
0.49
Burden
ratings
and
the
value
of
external
resistors
and
capacitors
for
HFA
54
M
and
HFA
54
N
are
given
in
Table
IX
.
6
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GEI
-
68720
*
TABLE
IX
EXTERNAL
RESISTOR
OHMS
**
EXTERNAL
CAPACITOR
yF
**
RESISTANCE
OF
RESET
COIL
OHMS
**
RESISTANCE
OF
OPER
.
COIL
OHMS
*
*
OPERATING
COIL
VOLTS
RESET
COIL
VOLTS
125
185
2
,
000
1
125
100
5
2
48
48
26
366
15
50
3
250
250
740
8
,
000
8
,
000
200
5
*
4
48
250
26
200
5
48
230
/
60
Hz
230
/
60
HZ
*
5
1650
5
26
52.8
*
6
230
/
60
Hz
120
/
60
HZ
115
/
60
HZ
115
/
6
0
HZ
185
52.8
1650
5
*
7
5
250
8
,
000
200
26
*
8
13
200
5
115
/
60
HZ
26
*
9
2
,
000
100
5
125
26
*
*
Resistance
and
capacitance
values
are
nominal
;
variation
is
+
10
%
RECEIVING
,
HANDLING
AND
STORAGE
These
relays
,
when
not
included
as
a
part
of
a
control
panel
,
are
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
or
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
The
outline
,
panel
Surface
Type
HFA
relays
should
be
mounted
on
a
vertical
surface
,
drilling
diagrams
,
and
internal
connections
are
shown
in
Figs
.
4
to
13
.
mounting
on
steel
panels
requires
an
insulating
bushing
for
each
terminal
.
PERIODIC
CHECKS
AND
ROUTINE
MAINTENANCE
In
view
of
the
vital
role
of
relays
in
the
operation
of
power
systems
,
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
pickup
voltages
and
condition
of
contacts
be
checked
at
an
interval
of
from
one
to
two
years
.
See
the
section
on
SERVICING
AND
ADJUSTMENTS
.
*
Indicates
revisi
on
7
Courtesy of NationalSwitchgear.com

GEI
-
68720
SERVICING
AND
ADJUSTMENTS
CONTACT
CLEANING
In
cleaning
fine
silver
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
than
no
scratches
are
left
,
yet
corroded
material
will
be
removed
rapidly
and
thoroughly
.
Fine
silver
contacts
should
not
be
cleaned
with
knives
,
files
,
or
abrasive
paper
or
cloth
.
The
burnishing
tool
described
is
included
in
the
standard
XRT
11
A
relay
tool
kit
obtainable
from
the
factory
.
CONTACT
ADJUSTMENT
The
contacts
should
not
require
readjustment
since
they
are
self
-
aligning
.
Any
contact
circuit
can
be
changed
(
except
as
noted
in
the
CHARACTERISTIC
section
)
from
circuit
-
opening
to
circuit
-
closing
,
or
vice
versa
,
by
removing
the
fixed
contact
,
turning
it
over
and
returning
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
.
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
normal
ly
-
open
contacts
make
approximately
simultaneously
(
±
.
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
.
8
Courtesy of NationalSwitchgear.com

GEI
-
68720
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
.
Normal
!
y
-
Closed
Contact
Gap
and
Wipe
The
moving
contact
arms
must
be
adjusted
so
that
the
normally
-
closed
contacts
make
approximately
simultaneously
(
+
.
008
)
when
the
relay
is
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
:
a
.
i
)
Turn
the
stop
screw
clockwise
until the
first
normal
ly
-
cl
osed
contact
opens
.
ii
)
Turn
the
stop
screw
an
additional
1
/
2
turn
clockwise
.
All
normally
-
closed
contacts
should
be
open
.
iii
)
Turn
stop
screw
counterclockwise
until there
is
approximately
1
/
8
gap
between
the
stop
screw
and
armature
.
Lock
the
stop
screw
in
this
position
.
PICKUP
The
main
coil
should be
adjusted
to
pick
up
at
80
%
of
rated
voltage
for
AC
relays
,
and
60
%
of
rated
voltage
for
DC
relays
.
This
adjustment
may
be
obtained
by
unseating
the
knurled
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 should
pick
up
at
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
.
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
,
specify quantity
required
,
name
of
the
part
wanted
,
and
the
complete nameplate
data
.
The
renewable
parts
publication
is
GEF
-
2757
.
9
Courtesy of NationalSwitchgear.com

GEI
-
68720
-
m
,
,
«
m
m
5
m
i
•
Jg
*
v
.
-
;
.
k
FIG
.
l
(
8025534
)
HFA
54
RELAY
,
BACK
CONNECTED
,
SURFACE
MOUNTED
(
FRONT
VIEW
)
10
Courtesy of NationalSwitchgear.com