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Патент USA US3076874

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Feb. 5, 1963
A. D. LANTZ EI‘AI.
3,076,864
SUSPENSION APPARATUS FOR BUNDLE CONDUCTORS
Filed July 13, 1960
3 Sheets-Sheet 1
INVEN T0R5
ROBERT W. HA RMON 8
BY ALPHA D. LANTZ
h
ATTORNEY
Feb. 5, 1963
A. D. LANTZ E‘IY‘AI.
3,076,864
SUSPENSION APPARATUS FOR BUNDLE CONDUCTORS
Filed July 13, 1960
3 Sheets-Sheet 2
INVENTORS
ROBERT W. HARMON 8
By ALPHA D. LANTZ
MW
ATTORNEY
Feb. 5, 1963
A. D. LANTZ ETAL
3,076,864
‘ SUSPENSION APPARATUS FOR BUNDLE CONDUCTORS
Filed July 13, 1960
3 Sheets-Sheet 3
43
INVEN TORS
ROBERT w. HARMON a
By ALPHA D. LANTZ
hm
ATTORNEY
United States Patent C?ice
1
Fatented Feb. 5, 1953
2
ing the’ transverse disposition of the suspension plate and
3,076,864
the conductor cables;
ElUEihENSlQN AFPARAZTUS 356R liUNDlLE
,.
ii?lh??ii
FIG. 3 is‘ an enlarged partial view of the suspension
apparatus of FlGS. 1 and 2;
FIG. 4 is a top view taken in the direction 4-4 in
_ CQNDUCTQRS'
Alpha l1’.v ,Lantzl Barberton, and Robert W. Harmon,
Doylestown, Shin, assignors to The (lhiogBrass Com
pany, Mans?eld, one, a corporation of New Jersey
Filed July 13, 196i)‘, Ser. No. 42,651
19 (Claims. (Ci. 1744-141)
FIG. 3;
FIG. 5 illustrates‘ an embodiment of the invention in a
suspension apparatus for a three cable bundle conduc
This invention relates to‘ electric power lines and 10 tor with a single insulator string;
FIG; 6 illustrates an embodiment of the invention, simi
more particularly to lines constituted by a plurality of
lar to that of FIG. 5, in an arrangement utilizing plural
part conductors connected and arranged as a single or
insulator
strings; and
v
phase conductor of the line.
H6.
7
illustrates
an
embodiment
of the invention in
in R. W. Harmon and A. D. Lantz application, Se
a suspension apparatus for a two
rial No. 23,737,,?led April 21, 1960, entitled Suspension 15 tor,
with plural insulator strings.
cable bundle conduc
Apparatus for Bundle Conductors, we have described a
new and novel suspension apparatus for line conductors
of the type referred to above, otherwise known as bun
die conductors. In the apparatus shown and described
in that application, the part conductors are held in trans 20
versely spaced relation by a suspension plate which is
Referring now to FIGS. 1 and 2, there is shown a
transmission line apparatus Iii) in which four conductor
cables ll, l2, l3 and 14 are carried by means of a
string of suspension insulators 15. The conductors ll
to is are supported by a suspension plate 16 and held
rangement of the apparatus are that corona and radio
noise effectsv are minimized and that the use of grading
26 of the string or" insulators
by means of a socket
link 27 and suspension pin 28. The link 27 is formed
by conductor clamps i7, l3, l9 and
The conductor
carried by one or more strings of insulators. The dis
clamps 17 to 2% are c rried by stanchious, indicated
position and arrangement of the conductor cables is such
generally at 21, 22, 23 and 24-, constituting extensions
that the line voltage is divided among the several in
sulators of the insulator string in a relatively uniform 25 from the body 25 of the suspension plate 15.
The suspension plate 16 is connected to the end insulator
way. The principal results of the construction and ar
rings and other shielding devices is obviated.
as a socket connector at the top end to receive a ball
The present invention similarly relates to line con 30 connector of the insulator 26, and as a clevis at the bottom
end to receive the in 23, which extends through the
ductors having a plurality of part conductors and to
link and the suspension plate 16.
arrangements for mechanically carrying conductor ca
The body 25 of the plate 1d has the stanchions 2i and
bles from a string of suspension insulators. In the ap
22 formed at the top lateral extremities thereof support
paratus of the present invention, the top line conductor
or line conductors are supported by a suspension plate 35 ing the two top conductor clamps l7 and 1S and cables
11 and 12. The stanchions 23 and 24, formed at the
so as to carry the conductor cables in vertical proximity
lower transverse extremities of the suspension plate 16,
to the insulators. Various arrangements of two, three,
carry the two bottom conductor clamps l9 and 2119 and the
or tour conductor cables are shown, together with ad
conductor cables 13 which hold 14-, respectively. The
vantageous connections of the bottom conductor cables
to the suspension plate, by suspension or support thereof. 40 resultant arrangement of the conductor cables is such
that the two top cables 11 and 332 are supported in prox
The apparatus described herein improves the distribu
imity to the string of insulators l5 and that the line
tion of line voltage between the insulators of the suspen
voltages are uniformly divided between the several in_
sion string, being similar to the apparatus set forth in the
sulators.
Harmon and Lantz application referred to above, in func
45
As will be evident from FIGS. 3 and 4, the stanchion
tional respects. The improved voltage distribution is ac
complished by an arrangement in which the conductor ca
bles are supported, at the top of the suspension plate, by
trunnion and stanchion devices, thus permitting support of
21 includes two upright parts
and 31 which are formed
integrally with the body 2d of the suspension plate 16.
The parts 3@ and 31 de?ne a recess 32 which extends
the conductors at a greater elevation with respect to the 50 between the parts 311% and 31 and with a depth sufficient
to accommodate the conductor clamp 17.
insulator string than has heretofore been possible, while
The conductor clamp 17 is carried upon two pivots,
constituted by two set screws 3d and
The inner ends
1960.
of the screws 34 and 35 are generally comically shaped
The invention, together with further objects, features 55 and are received in complementary openings in the body
of the clamp 17 so that the clamp is free to pivot in a
and advantages thereof, is described in the following
achieving the ‘mechanical stability of the apparatus of
A. D. Lantz application, Serial No. 23,828, ?led April 21,
speci?cation and claims and is illustrated in the drawings.
In the drawings:
FIG. 1 is a side elevation view of a four cable bundle
plane vertically through the cable 11. Each of the
stanchions 22, 23 and 24 are similar to the stanchion
21, although the stanchions 23 and 24 are inverted with
conductor and suspension apparatus according to the 60 respect to the body 25 of the suspension plate and the
invention;
Fl”. 2 is a view of the suspension apparatus of FIG. 1,
‘taken in the direction 2—2 of FIG. I, particularly show
stanchions 21 and 22.
A shield member 36 is joined to the body 25 along the
lateral extremity thereof and provides a smooth longi
tudinally extending surface for corona and radio noise con
aoraeaa
3
4
vantageous in that equal voltage division between the in
sulators of each string is promoted with good mechanical
stability in the transverse and longitudinal direction of
trol while increasing the mechanical strength of the plate.
The part 36 extends beyond the part Bill to constitute a
conductor shield 37 in the form of a smooth arcuate mem
the line conductor with division of the load between the
ber extending above the conductor cable ill. The mem~
ber 37 tends to diminish localized stresses in the vicinity
of the clamp 17 and, accordingly, to reduce corona and
radio noise. A s iield member 3% along the opposite side
of the body 25 and a conductor shield 39 above the cable
two insulator strings.
means of the stanchions 21 and 222 results in a favorable
thereof as a stanchion '78 which supports the conductor
stantially uniform along the string and the division of
line to ground voltage between the insulators is essentially
the body 76 of the suspension plate by the links 85 and
86 and pins 87 and 38.
The apparatus 70 of FIG. 7 comprises a two cable con~
ductor bundle in which a suspension plate 71 is carried
by two insulator strings '72 and '73 to support two con‘
ductor cables '74 and 75. The suspension plate 71 is
12 functions in the same way as the shield member 36
10 symmetrically formed with respect to a vertical center line‘
and the conductor shield 37.
through the plate and comprises a body '76 with an up-'
Supporting the two top conductors 11 and 12 above
wardly extending part '77 formed at the top extremity
the level of the body 25 of the suspension plate 16 by
clamp 79 for the conductor cable 74. The bottom part of
relation of the conductors l1 and 12 with respect to the
string of suspension insulators 15. Thus, as set forth in 15 the body 76 is formed as a downwardly extending part
89 with a stanchion 8?. at the extremity thereof. The
application Serial No. 23,737, idem, the capacitance be
stanchion Elli carries a conductor clamp 82 for holding the
tween the cables and the middle insulators of the string is
conductor cable 75. The stanchions 7S and 81 are similar
such, relative to the capacitance between the cables and
to the stanchions described in connection with H68. 1
insulators at the end of the string, that the capacitance
between the individual insulators and the conductor cables 20 and 2.
The end insulators 83 and 84 of the insulator strings
is relatively uniform along the string of insulators. Ac
72 and '73 are connected to the transverse extremities of
cordingly, the distribution of charging currents is sub
equal.
The arrangement of the suspension apparatus of FIGS.
25
Inasmuch, as the conductor cables 74 and 75 are sym“
metrically disposed with respect to the insulator strings '72
and 73. in the transverse direction and, because of the
proximity of the conductor cable 74 to the insulators of
the middle portion of the strings, it will be seen that a
suspension pin 28, is such that the weight of the con 30 favorable distribution of voltage between individual in
sulators of the strings is accomplished. The arrangement
ductors 1.3 and lid is e?ective to produce restoring forces
of the conductor '75 imparts desirable mechanical stability
substantially in excess of the disturbing forcesdue to the
characteristics in addition to the anti-swing characteristics
Weights of the conductors 11 and 12. Thus the favorable
of the dual string support.
disposition of the top conductor cables 11 and 12 with
The features and advantages of the instant invention
respect to the insulator 15 is accomplished in a structure 35
with respect to the apparatus of the prior art may be
which is mechanically stable with respect to pivotal move
summarized as follows: the close proximity of the con
ments about the suspension pin.
ductor system, and especially the top conductor or con
The apparatus 4t? of H6. 5 comprises a three cable
ductors, to the insulator string made possible through the
conductor bundle in which a suspension plate éll is carried
use
of this invention results in a greatly improved dis
40
from an insulator 42 of a string of insulators 43; two top
tribution ofvoltages along the insulator string. That is,
conductor cables, 44 and 4.5‘, are supported. on two
the voltage distribution approaches the ideal situation
stanchions as and 47 by means of conductor clamps 48
in
which each unit of the insulator'string carries the same
and 49; and a bottom conductor 5th is suspended from
voltage
in magnitude equal to the total line-to-ground
the bottom of the plate 41 in alignment with the insulator
42 by means of a suspension clamp 51. The insulator 45 voltage divided by the number of insulators’ in the string,
to a degree heretofore unknown.
.
(5-2 is connected to suspension plate 41 by means of a link
The
eifect
of
the
improved
voltage,
distribution‘is
to
52, similar to the link 27 in FIG. 2, and the stanchions
decrease the portion of the line voltage carried by the
4s and 47 are similar to the stanchions 21 and 22 of the
insulators at the energized end of the insulator string.
suspension plate 16 also of FIG. 2. The suspension clamp
This
reduces, or even eliminates, corona discharges and
51 is connected to the suspension plate 41 by means of 50
radio noise interference from the insulator string.
a clevis 53 and a pin 54.
Further the use of a shorter insulator string permits‘
‘in the arrangement of FIG. 5, the top conductor cables
'smaller spacing between line conductors with a conse
44 and 45 provide a uniform division of the line voltage
quent reduction of line inductance; shorter insulator
between several insulators of the string d3 as has been de
strings reduce tower costs because of the lesser height of
scribed in connection with the apparatus of FIGS. 1 and 5,5 tower required; and, ?nally, some reduction in right of
2. The arrangement of the conductor cable e'tl, e.g., by ’
way requirements is achieved.
suspension at the center of the plate below the insulator
It is to be understood that the foregoing description is
42, stabilizes the conductor assembly with respect to pivotal
not
intended to restrict the scope of the invention and
movements about pin 55 also as described in connection
that various rearrangements of the parts and modi?ca
with FIGS. 1 and 2.
60 tions of the design may be resorted to. The following
The apparatus as of FIG. 6 is generally similar to the
claims are directed to combinations of elements which
apparatus as of FIG. 5. That is, a three cable conductor
embody the invention or inventions of this application.
bundle is carried by the suspension plate till with the two
We claim:
.
‘
top conductor cables supported at the top of the plate by
l.
Intransmission
line
apparatus,
a
bundle
conductor
means of stanchions, and the third conductor suspended 65
comprising a plurality of conductor cables, means hold
from the lower extremity of the suspension plate. Thus
mg the conductor cables in transversely spaced relation
the stanchion s2 and the conductor clamp 63 correspond
comprising a suspension plate, suspension means for the
to the stanchion 4'7 and conductor clamp 49 in FIG. 5,
said bundle conductor comprising a series string of sus~>
and the suspension clamp 64- corresponds to the suspension
clamp Ell in PlG. 5. In the apparatus as. the suspension 70 pension insulators for carrying the said bundle conductor‘
in insulated relation to a supporting means, means con
plate 611; is carried by two strings of insulators 65 and
necting a bottom end one of the said suspension insulators
an. The endmost insulators of the strings of insulators are
to the suspension plate at the top central part thereof
connected to two plates 67 and as respectively which are
with the said end one of the insulators adjacent the plate
welded or otherwise secured to the suspension plate 61
along the center line thereof. The apparatus as is ad 75 and including a pivotal connection for relative movement
1 and 2, in which the conductor cables 13 and 14 are car
ried by two arms disposed below and extending in the
lateral direction from the line of pivotal support of the
$5
3,076,884
of the ‘suspension plate "and insulators at least in the plane
of the plate, the said suspension plate having stanchion
6
two suspension insulators are connected to the suspension
means at each of the top lateral extremities thereof ex
plate symmetrically on oppostie sides of the suspension
tending rigidly from the body of the plate in the direction
of the ‘said insulators, two conductor clamps supported
12. In transmission line apparatus, a bundle conductor
one by one and one by the other of ~the said stanchion
means above the level of the said pivotal connection and
two of the said conductor cables carried one in one and
clamp.
.
comprising a plurality of conductor cables, means holding
the conductor cables in transversely spaced ‘relation com
prising a suspension plate, means carrying the said con~
ductor cables from the suspension plate comprising at
one in ‘the other of the said clamps substantially 'at the
level of the said end one of the suspension insulators, 10 least stanchion means at the top lateral extremities of the
plate, conductor clamps for the cables, and pivotal means
and means carrying the remainder of the said conductor
supporting the clamps on the said stanchions, suspension
cables from the suspension plate comprising a conductor
means for the said bundle conductor comprising at least
clamp for each of the said remainder of the cables and
two strings of suspension insulators for carrying the said
inter-connected with the suspension plate below the level
of the said connecting means in transversely symmetrical 15 bundle conductor in insulated relation to a supporting
means, two members extending oppositely from the cen
arrangement with respect to the said pivotal connection,
tral part of the said suspension plate in the longitudinal
all for suspension of the said bundle conductor from the
direction of the said cables, and means connecting the
said suspension insulators with substantially uniform ca
bottom end one of the insulators of each string to the
pacitances between the individual insulators and the bun
dle conductor and in mechanical stable condition with re 20 said oppositely extending members, one to one and one
to the other thereof, at points below the level of the said
spect to the said supporting means.
conductor clamps, with the said end one insulator closely
2. The invention in accordance with claim 1 in which
adjacent the member in each instance all whereby the
the said bundle conductor has four conductor cables and
said cables carried by the said stanchions are carried in
two of the conductor cables constituting the said re
mainder are carried at opposite sides of the suspension 25 elevated relation to the said suspension insulators for
equalizing the insulator to bundle conductor capacitances
plate in symmetrical disposition with respect to the said
and promoting equal division of line voltage between the
pivotal connection by means connected to the suspension
insulators of the strings.
plate substantially below the ?rst named two conductor
13. The invention in accordance with claim 12 with
cables.
3. The invention in accordance with claim 2 in which 30 means suspending a conductor cable from the suspension
plate below the level of the said oppositely extending
the suspension plate has separately formed downwardly
members and in vertical alignment therewith for pro
extending parts for carrying the said remainder two con
moting stability of the said apparatus with respect to
ductor cables.
mechanical movements about the lower extremity of the
4. The invention in accordance with claim 1 in which
the said bundle conductor is constituted by three con 35 strings of suspension insulators.
14. In transmission line apparatus, a bundle conductor
ductor cables and the third conductor cable is suspended
comprising a plurality of conductor cables, means hold
from the suspension plate by means connected to the
ing the conductor cables in spaced relation comprising
suspension plate vertically below the said connecting
means.
a suspension member characterized by transverse width
5. The invention in accordance with claim 4 in which 40 and vertical height, means for carrying the said bundle
conductor in insulated relation to a supporting means
two strings of suspension insulators are connected to the
suspension plate centrally thereof in equal and opposite
comprising a string of suspension insulators, means con
longitudinal directions of the plate.
necting a bottom end one of the said suspension insulators
to the suspension member with a pivotal connection for
6. The invention in accordance with claim 1 in which
the suspension plate is carried by two strings of suspen
relative movement thereof, at least in the plane of the
sion insulators connected to the plate at opposite sides 45 plate, stanchion means at a top vertical extremity of the
thereof below the said suspension clamps and conductor
cables.
7. Transmission line apparatus in accordance with
claim 1 in which conductive shield members extend along
the suspension plate in the vertical direction at the trans 50
verse extremities thereof and over and above the con
ductor cables in symmetrically opposite relation with
member extending rigidly :from the member generally in
the direction or" the said insulator string, a conductor
clamp carried by the said stanchion means, and a con
ductor cable carried in‘ the said clamp, the said clamp
and the said conductor cable being disposed above the
level of the said pivotal connection, and means carrying
the remainder of the said plurality of conductor cables
respect to the insulators.
8. Suspension apparatus for the conductor cables of a
from the suspension member connected to the member
in transversely symmetrical arrangement with respect to
bundle conductor comprising a suspension plate having
the said pivotal connection, all for suspension of the said
stanchion means projecting rigidly from the body of the
bundle conductor with the ?rst named conductor cable
disposed adjacent the insulators of the said string for
plate at the top extremity thereof and a conductor clamp
supported by the said stanchion means, means for con
substantially uniform division of voltages therebetween
necting an insulator to the said suspension plate below
and with mechanically stable relation of the bundle con
the level of the said stanchion means, and means for bold 60 ductor to the insulators.
ing a conductor cable carried from the said suspension
v15. Transmission line apparatus in accordance with
plate at a point below the said connecting means in
claim 14 in which the end one of the insulators connected
transversely symmetrical relation therewith.
to the suspension plate by the said connecting means is
disposed below the level of the, ?rst named conductor
9. The invention in accordance with claim 8 with two
stanchions and two conductor clamps at the top extremity 65 cable.
16. A suspension plate for carrying conductor clamps
of the suspension plate and a suspension insulator con
for the conductor cables of a bundle conductor comprising
nected to the body of the suspension plate centrally be
a metal body characterized principally by transverse
tween the two stanchion means.
width and vertical height and adapted to be carried by
10. The invention in accordance with claim 9 in which
two suspension insulators are connected one to one and 70 a suspension insulating means, stanchion means at a top
one to the other of two projections extending oppositely
from the suspension plate in the longitudinal directions
therefrom and centrally between the stanchions.
vertical extremity of the body constituted by two ?xed
transversely spaced projections from the body for receiv
ing a conductor clamp, and pivot means on the said pro
jections spaced from the said body for carrying a con
11. The invention in accordance with claim 8 in which 75 ductor clamp from opposite sides thereof.
7
'17. The invention in accordance with claim 16 with
8 .
References Cited in the tile of this patent
two said stanchion means at the transverse extremities
of the body.
18. The invention in accordance with claim 17 with
, 2,475,230
means at the bottom extremity of the body centrally in '5
the transverse direction thereof for suspending a con
of the bottom extremity of the body, and inverted with m
respect to the stanchion means at the top of the body.
Frey et al ______________ __ July 5, 1949
Kaminski et a1 _________ __ Oct. 28, 1958
FOREIGN PATENTS
ductor clamp therefrom.
19. The invention in accordance with claim 16 with
two similar stanchion means at the transverse extremities
UNITED STATES PATENTS
597,417
181,889
Germany ____________ -_ May 24, 1934
Austria ______________ -_ May 10, 1955
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