US852186A

US852186A - Electrical-current interrupter.

Info

Publication number: US852186A
Application number: US35448807A
Authority: US
Inventors: Frederic W Lord; Frederic Wm Erickson
Original assignee: Individual
Current assignee: Individual
Priority date: 1907-01-28
Filing date: 1907-01-28
Publication date: 1907-04-30
Anticipated expiration: 1924-04-30

Description

No. 852,186. I PATENTED APR. 30, 1907.

' F. W. LORD & F. W ERIGKSON. ELECTRICAL CURRENT INTERRUPTER.

APPLICATION FILED JAN.28.1907.

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UNITE STATES PATENT OFFTGE'.

FREDERIO W. LORD AND FREDERIO WM. ERICKSON, OF NEl/V YORK, N. Y.

ELECTRICAL-CURRENT INTERRUPTERB.

Specification of Letters Patent.

Patented April 30, 1907.

Application filed January 28, 1907. Serial No. 854,488.

T at whom, 715 may concern.-

Be it known that we, FREDERIO W. LORD and Fnnnnnic WM. ERIOKSON, both residing at New York, in the county of New York and State of New York, have invented certain Improvements in Electrical-Current Interruptcrs, of which the following is a specifiany lightning discharge if employed with It therefore besuch high potential lines. 2 5 comes necessary to provide means for establishing an easy path for the lightning discharges separating from these discharges the dynamic current which would follow the break down of the medium caused by the 0 lightning discharge.

The means about to be described provide for a large number of rapidly moving air gaps in the aggregate having sufficient resistance to safely prevent the normal current from 3 5 discharging to the ground; and at the same time providing an opportunity for the lightnin g discharges or surges of abnormal potential to jump from one to the other of the various spark parts to the ground. All of 4,0 which we will now proceed to describe and point out in the appended claims.

Of the accompanying drawings which illustrate the invention: Figure 1 is a longitudinal view partly in section of the invention,

and Fig. 2 is a vertical section on line at, cc, of the former figure.

In the drawings, W represents an inclosing case for the parts of the arrester, provided on each end with hubs, 0 and p, through which extend the shafts F, F, from the re spective motors Q and P these are preferably electrical motors: At the outset it may be said that the construction about to be described may not be that used in actual practice, although the features of the invention are plainly indicated thereby.

The lower portion A of the inclosing case is composed of metal preferably cast in one piece, having at its underside a lug a in which is located a ground wire J, held in place by the set screws (Z; the upper edge of the portion A is rabbeted at r to receive the upper portion B which. is made of some suitable in sulating material as glass or porcelain and is provided with a cover C, having at its central portion a lug 3 into which is secured by the set screw 6 a branch I from the line wire L, N.

Secured to the lug s by the set screw f is an adjustable electrode ll, consisting of a spindle 25 extending into the upper portion B upon the end of which is pivoted at the depending electrode iprovided on one side with the screw threaded arm h upon which is screwed the adjustable weight 9, above the pivot the electrode is forked, the two arms Z, Z, being adapted to strike the stop pin 7c in the spindle in a manner to be described. A conductor m extends from the spindle t to the electrode i to avoidthe resistance of the pivoted joint; while at rest the electrode "L and its weight 9 remain in the position represented by full lines.

The shafts F and F extend into the lower case A and meet in the common hub K, of in sulating material, the former shaft is adapted to have a bearing in the hub and to rotate therein, while the latter shaft is secured in he hub by a spline or in any suitable manner and rotates with it. To the hub K is secured to move therewith, the double arm electrode 0, more arms may be provided if desired, the peripheries i and 5 of the arms are curved and serrated, and increase in diameter rearwardly and move in the direction of the unfeathered arrow.

The shaft F is attached to the hub to of the disk D through which it passes.

L, L are metal segments serrated on their inner and outer faces and separated from each other at their ends by passages S, 8, these segments are secured at one end to the disk D and at their opposite ends to a ring (Z by the bolts N, there being interposed the insulating washers M on each end and the insulating sleeves l-Jl. The segments L are adapted to be rotated by means of the shaft F in the direction of the feathered arrow, contrary to the movement of the arms E.

Attached to the inner bottom of the lower portion A is a serrated metal electrode 0, this electrode may be cast with the port-ion A if desired.

The case is to be partly filled with oil Z to immerse the lower end of the electrode i when moved to the dotted position, and not 30 reach the same when in the position of full lines.

On one sideo'f the lower portion A and secured thereto is an insulated shell G having wings G extending on each side of the disk D and ring I) this may reach over the top of the disk D if desired (with a slot for the movement of the electrode i) as indicated. in the dotted lines. The ollice of this shell is to accentuate the force of the liquid in its centri -ugal motion caused by the opposite rotation of the electrodes E and the disk D when put in motion by the respective motors and. direct it toward the top of the casing, at which time the electrode 7) is forced forward by the oil into the dotted position against the force of the weight g and spark gap circuits are established from the electrode at to the moving segments L and from one to another, or through the arms E, to the electrode 0 and. to ground.

hen the motors are at rest and the oil is therefore quiet the weight g depresses the electrode i and causes it to move to a safe distance out from the oil so that the breaking down of the instrument is prevented by the high resistance due to the increased distance between the electrode i and any section L, this distance is determined by experiment with the maximum line voltage carried. The forks, Z, as will be evident, limit the action of the weight, by their contact with the pin 76, in one direction holding the electrode i in a vertical position, in the other determining the drop of the weight.

It will be seen that the oil is kept agitated by the rotation of the parts as described, and while it assists in preventing the formation of arcs, which the rapid rotation of the segments through the same aims to suppress, it also plays upon the electrode i and keeps it in a vertical position with the minimum spark gap, based on the speed of the rotating disk D, and overcomes the effect of the weight.

The construction of the peripheries of the arms E is such as to provide a compressing action on their surfaces and assist in forcing the oil through the spaces 8, 8, between the segments and over the serrated surfaces of the same.

The advantages of a series of rapidly movi of a self adjusting pivoted line electrode, a

ing serrated segments across the path of a any one series of sections, another series takes its place, and arcs are dissipated rapidly, and the segments as a whole are kept comparat-ively cool.

I claim as my invention:

l. The combination in. an arrester device of a casing partly filled with liquid insulation, inclosing and supporting spark gap electrodes, adapted to be arranged in series from the line wire to the ground, consisting ol. a self adjusting pivoted line electrode, a series of rotatable spark gap segments arranged in a circle, with agrounded electrode.

2. The combination in an arrester device of a casing containing liquid insulation, inclosing and supporting spark gap electrodes adapted to be arranged in series from the line wire to the ground, consisting of a sell adjusting pivoted line electrode, a series of rotatable insulated spark gap segments separated from each other and arranged in a circle, with a grounded electrode.

3. The combination in an arrester device of a casing containing liquid insulation, inclosing and supporting spark gap electrodes adapted to be arranged in successive series from the line wire to the ground, consisting of a self adjusting pivoted line electrode normally free from the liquid insulation, but when the liquid is agitated changes its position and becomes immersed therein, a series of rotatable insulated spark gap segments separated from each other and arranged in a circle, with a grounded electrode.

l. The combination in an arrester device of a casing partly filled with liquid insulation, inclosing and supporting spark gap electrodes adapted to be arranged in series from the line wire to the ground, consisting of a self adjusting pivoted line electrode, a series of spark gap segments arranged in a circle and adapted to be rotated in a certain direction, a plurality of electrodes located within the said segmental circle adapted to be rotated in a. direction opposite the motion thereof, with a grounded electrode.

5. The combination in an arrester device of a casing inclosing and supporting spark gap electrodes adapted to be arranged in successive series from the line wire to the ground, consisting of a self adjusting pivoted line electrode, a series of rotatable insulated spark gap segments separated from each other and arranged in a circle, with a grounded electrode.

6. The combination in an arrester device of a casing containing liquid insulation, inclosing and supporting spark gap electrodes adapted to be arranged in successive series from the line wire to the ground, consisting series of rotatable insulated spark gap segcurrent discharge will be apparent, as while I ments separated from each other by passages the current is discharged to ground through 1 and arranged in a circle upon a d1sk or lrame,

scares a shield at one end of the casing arranged to inclose the said segments, and a grounded electrode, as set forth.

7. The combination in an arrester device of a casing containing liquid insulation, inclosing and supporting spark gap electrodes adapted to be arranged in successive series from the line wire to the ground, consisting of a self adjusting pivoted line electrode, a series of rotatable insulated spark gap seg ments separated from each other by passages and arranged in a circle upon a disk, a shield at one end of the casing arranged to inclose the said segments, a plurality of electrodes located. within the said segmental circle adapted to be rotated in a direction. opposite the motion thereof.

8. The combination in an arrester device of a plurality of electrodes separated from each. other by air gaps adapted to be arranged in successive series from the line wire to the ground, consisting of a line electrode, and a ground electrode, between which are a series of rotatable insulated electrodes separated from each other.

9. The combination in an arrester device of spark gap electrodes adapted to be ar ranged in successive series from the line wire to the ground, consisting of a line electrode and a ground electrode between which are a series of rotatable insulated electrodes separated. from. each other, with a plurality of electrodes located within the said series of electrodes adapted to be rotated in a direction opposite the motion thereof.

10. The combination in. an arrester device of'spark gap electrodes adapted to be arranged in successive series from the line wire to the ground, consisting of a line electrode normally held at a high resistance position andv means for automatically forcing it into a low resistance position; and a grounded electrode; with a series of rotatable insulated electrodes between the line and ground. electrode separated from each other, as set forth.

11 The combination in an arrester device of a casing containing liquid insulation, inelosing and supporting spark gap electrodes adapted to be arranged in successive series from the line wire to the ground; ctmsisting of a self adjusting pivoted line electrode, a series of rotatable insulated spark gap segments separated from each other and arranged. in a circle upon a suitable support carried by a shaft to which is attached a suit able motor, w1th a grounded electrode eompletmg any series of spark gaps.

1.2. The combination in an arrester device adapted to be arranged in successive series from the line wire to the ground; consisting l 1 l l series of rotatable spark gap segments separated from each. other and arranged in a circle upon a suitable support carried by a shaft to which is attached a suitable motor and. rotating in a certain direction, a plurality of e ectrodes located within the said segmental circle and ea ried by a shaft to which is attached a motor adapted to rotate in a direction opposite that of the first motor, with a grounded electrode completing any series of spark gaps.

' 13. The combination in. an arrester device of a casing whose lower portion is metal and its upper portion of insulating material, provided with a cover or lid, containing liquid insulation, a line electrode supported upon the lid; a series of independent spark gap segments arranged in a circle upon a suitable support carried by a shaft which passes through the wall of the metal casing to an external motor; with a grounded electrode completing any series of spark gaps; the line electrode being automatically adjustable relative to the succeeding spark gaps, as set forth.

14-. T he combination in an arrester device of a casing whose lower portion is metal and its upper portion of insulating material, pro vided with a cover or lid, containing liquid insulation, a line electrode supported upon the lid; a series of independent insulated spark gap segments arranged in a circle upon a suitable support carried by a shaft which passes through the wall of the metal casing to an external motor, which rotates in a certain direction; a plurality of electrodes located within the said segmental circle and carried by a shaft which passes through the wall of the metal casing to an external motor rotating in a contrary direction. to the first motor; with a grounded electrode completing any series of spark gaps the line electrode being automatically adjustable relative to the succeeding spark gaps, as set forth.

15. The combination in an arrester device of a plurality of electrodes insulated from eael'r other, adapted to be arranged in successive series from the line ire to the ground, consisting of a line electrode and a ground electrode, between which are a series of insulated electrodes separated from each other and supported by a frame which is carried by a rotatable spindle.

16. The combination in an arrester device of a plurality of electrodes insulated from each other, adapted to be arranged in successive series from the line wire to the ground consisting of a line electrode and a ground electrode, between which is a disk carrying series of separate and insulated. electrodes, adapted to be rota ted by a motor.

1'7. The combination in an arrester device of a casing inclosing and supporting spark of a self ad'ustin ivoted line electrode' l a electrodes adaited to be arran ed in sucb n a cessive series from the line Wire to the ground, consisting of an adjustable line electrode, a January 1907. series of rotatable insulated spark gap elec- FREDERIC LORD. trodes separated from each other and arl FREDERIC M. ERICKSON. ranged in a circle, with a grounded electrode. l \Vitnesses:

In testimony whereof, We have signed our N. C. HAYNES,

two subscribing Witnesses, this 18th day of names to this specification in the presence of J. M. VVATTERS.