0
INSTRUCT IONS
GEH-1 793J
INSTANTANEOUS AUXILIARY RELAY
TYPES
HGA11A, C, H, J, K, P, S, T, V, W, X
GENERAL
AUILIARV
GENERALS ELECTRIC
ELECTRIC
P€A’
GEH-1793
CONTENTS
PAGE
DESCRIPTION
3
TABLE 1
3
4
RATINGS
4
TABLE 2
5
BURDENS
5
DC COILS
5
TABLE 3
5
AC COILS
TABLE 4
5
CHARACTERISTICS
6
ACCEPTANCE TESTS
6
6
MECHANICAL ADJUSTMENTS
6
PICKUP TEST
CONSTRUCTION
7
RECEIVING, HANDLING AND STORAGE
7
PERIODIC CHECKS AND ROUTINE MAINTENANCE
7
8
CONTACT CLEANING
8
RENEWAL PARTS
2
GEH-1793
INSTANTANEOUS AUXILIARY RELAY
TYPES
HGA11A, G, H, J, K, P, S, T, V. W, X
DESCRIPTION
These relays are double pole, hinged armature relays, suitable for applications
where a high—speed, low energy device is required.
For details of the HGA11 type
relay, see Table 1.
TABLE 1
RELAY
HGA11A
CASE AND MOUNTING
CONTACT ARRANGEMENT
BACK CONNECTED WITH COVER, SURFACEMOUNTED RELAY
SEE FIGURE 3
OPOT CONTACT ARRANGEMENT
SEE FIGURE 2
SIMILAR TO HGA11A, EXCEPT WITH GLASS
FRONT COVER AND PROVISION FOR SEMI-FLUSH
MOUNTING
SEE FIGURE 4
SIMILAR TO HOA11A
SIMILAR TO HGA11A, EXCEPT WITH GLASS
FRONT COVER
SEE FIGURE 3
SIMILAR TO HGA11A
SIMILAR TO HGA11A AND INSPECTED BY
NAVY
SEE FIGURE 3
SIMILAR TO HGA11A
FRONT CONNECTED WITH COVER FOR FRONT
MOUNTING
SEE FIGURE 8
SIMILAR TO HGA11A
FRONT CONNECTED, SURFACE MOUNTED, AND
IS AVAILABLE WITHOUT COVER ONLY
SEE
FIGURE 7
SIMILAR TO HGA11A
HGA11J
FRONT CONNECTED WITH COVER
FIGURE 5.
SIMILAR TO HGA11A
HGA11K
FRONT CONNECTED WITHOUT COVER, BUT WITH
PROVISIONS FOR FRONT MOUNTING
SEE
FIGURE 6
SIMILAR TO HGA11A
FRONT CONNECTED WITH COVER, PALLADIUM
CONTACTS
SEE FIGURE 5.
SIMILAR TO HGA11A
-
HGA11A(-)F
-
HGA11A(-)G
—
HGA11A(-)N
-
HQA11G
—
HGA11H
-
SEE
-
-
HGA11P
-
continued
3
.
.
.
-
GEH-1793
TABLE 1 (contd)
CONTACT ARRANGEMENT
CASE AND MOUNTING
RELAY
HGA11S
FRONT CONNECTED WITH COVER, PROViSIONS
SEE FIGURE 8
FOR FRONT MOUNTING
SIMILAR TO HGA11A
FRONT CONNECTED WITH SHOCK RESISTANT
SEE FIGURE 9
COVER
SIMILAR TO HGA11A
BACK CONNECTED WITH COVER, SURFACE
MOUNTED RELAY, PALLADIUM CONTACTS
SEE FIGURE 3
SIMILAR TO HGA11A
-
HGA11T
-
HGA11V
HGA11V(—)F
-
SIMILAR TO HGA11V EXCEPT WITH GLASS
FRONT COVER AND PROVISION FOR SEMISEE FIGURE 4
FLUSH MOUNTING
SIMILAR TO HGA11A
FIGURE 2
FRONT CONNECTED WITHOUT COVER, BUT WITH
SEE FIGURE 7
COVER CLIPS
SIMILAR TO HGA11A
SIMILAR TO HGA11K, BUT WITH PALLADIUM
SEE FIGURE 6
CONTACTS
SIMILAR TO HGA11A
—
SEE
-
HGA11W
-
HGA11X
-
RATINGS
The HGA11 relays are available for coil ratings for standard voltages up to 575
The DC relays are also
volts for 25, 50 or 60 cycles, and up to 250 volts DC.
amperes.
five
to
up
ratings
current
coil
with
available
The current closing rating of the contacts is 30 amperes. The current carrying
The interrupting
rating is 12 amperes continuously or 30 amperes for one minute.
in the Table 2.
listed
are
voltages
various
the
ratings (non-inductive circuits) for
TABLE 2
INDUCTIVE CIRCUITS
CONTACT
TYPE HGA
CIRCUIT VOLTS
DOUBLE
SINGLE
BREAK
BREAK
DC
AC
NON-INDUCTIVE CIRCUITS
CONTACT
TYPE HGA
CIRCUIT VOLTS
DOUBLE
SINGLE
BREAK
BREAK
DC
AC
6—3?
48
125
250
115
230
15
8
2
0.3
30
20
6-32
48
125
250
30
16
3
0.4
30
30
115
230
4
5
3
1
0.25
10
6
10
6
1.5
0.3
20
10
GEH-1 793
BURDENS
DC’ COILS
Burden data For DC coils is shown in Table 3.
TABLE 3
flC COIL BURDENS
VOLTAGE-RATED RELAYS
RESISTANCE
VOLTS
+10%
WATTS
250
125
62.5
48
32
24
12
6
15500
3650
930
512
250
160
41
9.9
AMP-RATED RELAYS
RESISTANCE
AMPS
+10%
WATTS
4.03
4.31
4.20
4.5
4.10
3.60
3.51
3.60
1
2
3
4
5
3.42
0.843
0.360
0.195
0.124
3.42
3.37
3.24
3.12
3.10
AC COILS
Certain quantities should he defined before giving burden data for AC coils:
R,,
is resistance ofa coil as measured with an ohmmeter, bridge, etc.
R()
is the AC resistance of a coil when AC power is flowing through the coil, but the
relay is not picked up.
1
X
is the inductive impedance when the coil is energized, but the relay is not picked up.
The resistive and inductive parts of impedance of coils under picked-up conditions are
designated as RPU and XPU.
Zfl()
is the impedance of the relay in dropout condition.
Z,
is the impedance of the relay in picked-up condition.
TABLE 4
AC COIL BURDENS
(‘011.
VOLTS
RDC
+10%
RDO
±10%
XDO
±10%
ZDO
+10%
RPU
-1-10%
XPU
HERTZ
+10%
ZPU
÷10%
115
230
460
575
60
60
60
60
90
376
1640
2200
210
860
3770
4090
510
2060
9010
11400
550
2230
9770
12400
377
1260
4590
7470
926
3750
16400
20800
1000
3960
17030
22100
RATING
Continued...
5
GEH-1793
TABLE 4 (Cont’d)
AC COIL BURDENS
COIL
VOLTS
115
230
460
575
115
230
460
575
RATING
HERTZ
RDC
+10%
RDO
+10%
XDO
+10%
ZDO
+10%
RpU
+10%
XPU
+10%
ZPU
+10%
50
50
50
50
25
25
25
25
90
512
1640
2570
376
1640
5800
9150
180
970
3230
5050
410
1770
6240
9830
420
2110
7510
11700
860
3750
12100
19500
460
2380
8180
12800
950
4150
14100
21800
304
1610
5430
8500
447
1950
6050
10800
77?
3950
13700
21400
1564
6840
?3100
35600
830
4270
14700
23000
1620
7110
24100
37200
CHARACTER I STI Cs
, high speed auxiliary relay. When
The Type HGA11 is a hinged armature type
flows through the armature pole piece
coil is energized, a magnetic flux
coupled to
Two auxiliary contacts are mechanically
attracts the armature.
closed, and
ally
be normally open or norm
armature. These auxiliary contacts can
.
be used to make or break auxiliary circuits
the
and
the
can
ACCEPTANCE TESTS
MECHANICAL ADJUSTMENTS
and
wipe on normally closed “b” contacts
ier.
There should be at least 1/16 inch
carr
ured at the top of the moving contact e is at
ther
normally open “a” contacts, as meas
armature by hand and checking that
This is determined by operating the edge of the contact carrier after the contacts
least 1/16 inch movement of the top
have made.
hand, “a” contacts should make within 1/32
When the armature is operated by
er should
tact just making, the gap of the oth
con
one
with
,
i.e.
er,
oth
each
of
inch
also applies to the “b” contacts.
never be more than 1/32 inch. This
piece and
clearance between the armature tail
There should be at least 1/32 inch
cover. A
with
ys
r for all back connected rela
the bottom inside surface of the cove is available to check this clearance.
s
special cover with cutouts in the side
PICKUP TEST
ge or current at which the armature
Pickup is defined as the minimum volta e.
It is adjusted by means of the
pole piec
operates and seals firmly against theeen the anchor pin and the armature tailpiece.
control spring that is fastened betw
ture groove
hole of the anchor pin and the arma
rated AC
its
The spring should be in the front
of
ent
perc
g
80
up without exceedin
pick
of
e
valu
est
high
the
s
give
that
d DC volts.
volts or DC amps or 60 percent of rate
6
GEH—1193
The AC voltage or DC current relays are adjusted to pick up at 70-80 percent of
rating at rated frequency.
The DC voltage relays are adjusted to pick up at 50-60
percent of rating when cold.
*
After AC relays have been continuously energized for a few hours (minimum four
hours) at rated voltage, the pickup and dropout voltages increase by 3.5 to 7.5
percent.
For DC relays, the pickup and dropout voltages increase by 5 to 10
percent.
The wipe on HGA11 relays exerts a contact pressure of 35 grams
“a” contacts and 10 grams + 10 percent on ‘b” contacts.
±
10 percent on
CONSTRUCT ION
*
The HGA11 is a molded case relay.
The various parts of the relay can be seen
in Figure 10.
The control spring is used for adjusting the pickup and dropout
voltage.
The function of the voltage barrier is to avoid flashover between a pair
of electrically separate, but mechanically coupled normally closed contacts, or
between a pair of normally open contacts. Cover spring clips maintain spring force
against the cover to hold the cover in position.
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.
Immediately upon receipt of a
relay, examine it for damage sustained in transit.
If damage resulting from rough
handling is evident, file a damage claim at once with the transportation company and
promptly notify the nearest General Electric Apparatus Sales Office.
Reasonable care should be exercised in unpacking the relay in order that none
of the parts are damaged nor the adjustments disturbed.
If the relays are not to be installed immediately, store them in their original
cartons in a place that is free from moisture, dust and metallic chips.
Foreign
matter that collects on the outside of the case could get inside when the cover is
removed, and cause trouble when operating the relay.
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.
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, the points listed
under ACCEPTANCE TESTS should be checked at an interval of from one to two years.
*Jndicates Revision
7
GEH-1793
CONTACT CLEANING
cleaning relay contacts. This is
A flexible burnishing tool should be used for
surface, resembling in effect a
a flexible strip of metal with an etched—roughened
ate that no scratches are left, yet
superfine file. The polishing action is so delic
Its flexibility ensures
rapidly.
it will clean off any corrosion thoroughly and
Knives, files, abrasive paper or cloth of
cleaning the actual points of contact.
any kind should not be used to clean relay contacts.
RENEWAL PARTS
be carried in stock to promptly
Sufficient quantities of renewal parts should
replace any that are worn, broken, or damaged.
est Sales Office of the General
When ordering renewal parts, address the near
name of the part wanted, and the
Electric Company, specify quantity required,
the part is required.
complete model number of the relay for which
8
GEH-1793
i5(B.
(2 HOLFS)
1O—32 THREAD
9
OUTLINE
DOTTED LINES FOR HGA11K ONLY
TOP OF RELAY
2
41
PANEL DRILLING
(FRONT VIEv)
1
13
INTERNAL CCNNECTIONS
(FNT VIEW)
Figure 1
Figure 2
Figures 1 and ? (0104A8573—O) Internal Connections Diagram for Types
HGA11A, G, H, J, K, P, S, T, V, W, and X Relays
9
GEH—1793
SPACE REQUIRED TO
RBVE COVER
OUTLINE
1
TOP OF7t
RE LAY
rJ
*-
>f--)_!
3
(8 HOLES)
.t—it
DRILL
4
(2 FDLES
)--i()
ii
4
ccD
,--6/
16 16
p
8
4-’
16
[TYPE CW PANEL
‘
7/16’ 2—i3/16’
INSULA1I3
9/16k 1-3/8’ j
STEEL
PANEL DRILLING (FRONT VIEW)
*
Figure 3
kjndicates Revision
7 8
INTERNAL CONNECTIONS
BACK VIEW)
WITH HGAI4A.14J,14K,14N,17A CONTACT
45 NOT USED UNLESS PICKUP IS
RAISED TO 6O/ (Dç)OR 8Oo (Aq)
OF RATING HGCIIA DOES NOT USED
CONTACT 4.
(K-6077058-20) Outline and Panel Drilling Dimensions for the
Types HGA11A(-)G, HGA1IA(-)N and HGA11V Relays
10
GEH-1793
1.
-
-1
PmEL
10-32
LhI
mo’s.
rjMT
i’o
—
—I
-1--4f
‘-I
I
I
4
rap o
L
-
RELAY
OUTLIW(
(2-4OLES)
1
I
2
41
3
JLp1611
7
IR1tAL COWWS.
BACK VIEW
WITh A14A, 17A CONTACT 4
IS OT USED UWLESS PICK-UP
IS RA ISED TO 60$ (DC) OR 80$
(AC) OF RATING.
PANEL DRILLiNG
FRCT VIEW
*
Figure 4
(0104A8557-2)
1ndicates Revision
8
Outline and Panel Drilling
Type HGA11A(—)F Relay
11
Dimensions
for
the
GEH-1793
ED
NOTE: WIRE SIZE WES NOT EXCE
N
ATO
0.2” OVER INJL
*10—32 ThREAD
UNLESS PANEL
ThICKNESS IS
SPED IF ,, ED
SPACE REQUIRED TO RBIOYE
COV ER
OUTL NE
1
2
TQPQ.LRELAL
(N
88
I..
4
7
(2HOLES)
8
INTERNAL CONNECTIONS
(BACK yEW)
PANEL DRILLING
(FRONT VIEW)
Drilling Dimensions
Figure 5 (K-6375626-4) Outline and Panel
ys
Rela
for Types HGA11J, HGA11P
1
GEH-1793
1
1
T
6
1—
.1695 (lid)
(2 HOLES)
9
3j
2--.
i3_
i
2
3
32
OUTLINE
32
-
16
2
1
411
8
7
INTERNAL CONNECTIONS
(FRONT VIEW)
Figure 6 (K-6154317—3) Outline and Panel Drilling Dimensions
for Types HGA11K, HGA11X Relays
13
GEH—1793
2 THREAD
OUTL I NE
TOF OR RELAY
2
8
8
1
DRILL
(2 HDLES)
PANEL DPILLNG
(FRONT ViEW)
INTERNAL CONNECTIONS
(FRONT vIEW)
Figure 7 (K—6154155—5) Outline and Panel Drilling Dimensions
for Types HGA11H, HGA11W Relays
14
GE[I-1793
10—32 ThD.
.187 DIA.
(2 HOLES)
r
0
ft
2t
2’
—
I
00
I
4’
I
4
_i
-
2-
4—
—
-
7.
3--
SPACE REQUIRED ID
REMVE COVER
2
1
411L
T
-
8
7
INTERNAL CONNECTIONS
(FRONT VIEW)
Figure 8 (0165A7757—2) Outline and Panel Drilling Dimensions
for Types HGA11G, HGA11S Relays
15
GEB-1793
:I
T
N(Y
E
WIRE SIZE DOES N EXCEED
0.2” OVER INSULATION
2i
4j!(9
2
SPACE REQUIRED TO RE10VE COVER
OUTLINE
_.to
8
1
2
00
TOP OF RELAY
iT
-1*
4.
PANEL DRILLING
(PE0N’r VIEW)
DRIll
(2 HOLES)
IN’INAL CONNECTIONS
(BACK vrw)
lling Dimensions
Figure 9 (0127A9568—O) Outline and Panel Dri
y
for the Type HGA11T(-)A Rela
16
—
k
UNLESS PANEL
THICKNESS IS
SPECIFIED
G-
NI
/
S
GEFI—1793
CONNECTION STUDS FOR
BACK-CONNECTED RELAYS
COVER
CLIP
SPRING—_
HINGED
ARMA lURE
SPRING LEAVES
FOR MOVING
CONTACTS
I
j
—-___
__
CONTROL SPR
1
ING—
FLEXIBLE
Figure 10 (8042422) Typical HGA Relay Removed from Case
17
LEAD
GE Power Management
215 Anderson Avenue
Markham, Ontario
Canada L6E 1B3
Tel: (905) 294-6222
Fax: (905) 201-2098
www.gecomIindsysIpm