US1589214A

US1589214A - Reactance

Info

Publication number: US1589214A
Application number: US555057A
Authority: US
Inventors: Sandor I Oesterreicher
Original assignee: Individual
Current assignee: Individual
Priority date: 1922-04-18
Filing date: 1922-04-18
Publication date: 1926-06-15
Anticipated expiration: 1943-06-15

Description

June 15 ,1926.

' 1,589,214 5. l. OESTERREICHER REACTANGE Filed April 18-, 1922 3 Sheets-Sheet 1 1 EL W P 4% a INVENTOR.

. f Jandor I Oesferre/cher June 15 1926. 1,589,214

S. l. OESTERREICHER REACTANCE Filed April 18, 1922 3 Sheets-Sheet 2 INVENTOR.

" 2 Sandor [.Oesfgrre/cher I 1 ATTORNEY.

June 15 926. 1,589,214

S. l. OESTERREICHER REACTANCE Filed April 18, 1922 3 Sheets-Sheet s llml Sandor J. 085 fer/"either '/BY W ATTORNEY.

Patented June 15, 1926.

UNITED STATES SANDOB I. OESTEBREICHEB, OF NEW YORK, N. Y., ASSIGNOB '10 THOMAS E. HUB- BAY, OF BROOKLYN, NEW YORK.

REACTL'NCB.

Application filed April 18, 1928. Serial No. 558,057.

My invention aims to provide a reactance of low first cost, maximum short circuit protection and high all-year efficiency.

The accompanying drawings illustrate an embodiment of the invention Figs. 1 and 2 are respectively side and end elevations, and Fig. 3 a plan;

Fig. 4 is an inside elevation of a segment of the housing;

Figs. 5 and 6 are sections on the lines 55 and 6-6 of Fig. 4;

Fig. 7 is a sectional view on the line 7-7 of Fig. 2;

Fig. 8 is a section on the line 88 of Fi Fig.8 is a perspective of a detail;

Figs. 10 and 11 are respectively a plan and front elevation of a group mounting of reactors;

Figs. 12 and 13 are respectively an end elevation and a side elevation of another group arrangement.

Referring to the embodiment of the invention illustrated, the winding is carried in a housing made in segments which are clamped together, with insulating holders for the winding interposed between the latter and the housing segments. The segments are preferably made of concrete which is much cheaper than the best insulating material but which is of variable dielectric stren h, whereas the interposed insulators are 0 glazed terra-cotta, porcelain, or similar material of greater and substantially uniform dielectric strength.

The housing is preferably made of two identical concrete segments 1 with projections 2 of uniform height through which pass clamping brass bolts 3. These bolts pass through brass eyes 4, Fi 8, imbedded in concrete and extending to t e edge of the segments where they form nuts 5 for attachment to the insulators 6 on which the coil is supported. These nuts are provided on the top and on the bottom of the reactors to permit the latter to be arranged in groups superimposed upon one another or in braced relation to one another horizontally, along a common axis or with their axes parallel.

The engagement of the nuts 5 with the clamping bolts ensures that all strains originating either internally or externally are uniformly transmitted to the clamping bolts, which thus form the main stays of the entire construction. The ends of the clamping bolts 3, and the clamping nuts thereon, lie in recesses 7 in the faces of the se ments and there are no parts protruding ieyond the housing.

On the inner faces of the housing segments there are formed recesses to receive the insulating lining blocks or holders. Such recesses are shown in Fig. 4, the vertical and horizontal recesses 8 being somewhat lon er than the two sets of oblique recesses 9. he oblique recesses 9 communicate with transverse recesses 10 in the corner projections 2, these recesses 10, by reason of the obliquity of their faces serve to press the terra-cotta lining blocks against the winding as the segments of the housing are clamped to ether. Thus, when the clamping bolts are tig tened the holding means will be pressed against the winding and the latter will be securely clamped in place.

In the corner recesses 10 (Figs. 7 and 8) there are placed insulating blocks 11 extending clear across from one segment of the housing to the op osite segment. In the recesses 9 are placed short insulatin blocks 12 with their ends abutting against t e inner faces of the blocks 11. In the recesses 8, shown best in the upper part of Fig. 8, there are placed longer insulating blocks 13.

Special porcelain bushings 14, 14 (shown separately in Fig. 9) are used for each of the outgoing leads from the winding. These bushinigs are set in suitable recesses in the pair 0 insulating blocks 13' along which the outgoing leads 15 and 16 pass, as shown in Fig. 8. For the inside lead 15, that is the lead which runs to the center of the coil, the bushing 14 also runs to the center, enveloping the lead and forming a solid porcelain barrier between the lead and the winding, preventing uncertain dielectric conditions at any important conductor crossover point within the reactor.

The ventilation of the winding is provided for by means of central openings on the six sides of the reactor. The housing sections are formed with central openings 17 which provide an axial ventilation passage. And the spaces between the projections 1 leave fill) till room for horizontal ventilating passages 18, Fig. 2, and vertical ventilating passages 19, Fig. 3. The several vent1latmg passages are preferably covered with gratlngs as shown.

The winding is of the type known as a multiple layer disc or pancake winding. It consists of a number of layers of rectangular flat copper wound to a certain number of turns to give the desired reactive drop T he copper before winding is covered with an insulating layer of cotton yarn or other suitable insulating material. Proper transpos tions are arranged to provide an even current distribution, but this is not illustrated and is not of importance to the present invention. Each completed layer of the winding is bound together by a layer of tape 20 as shown in Fig. 7 passing back and forth around the circumference and the central opening of the disc 21 of flat copper wire. The individual layers are separated by hard wood spacers 22 located in the lines between the several insulating blocks 12 and 13 by which the layers are pressed together, the spacers being doweled in position to prevent shifting.

In assembling the reactor the completed winding is bound together with the wood spacers in place and after drying and coat-- ing with insulating varnish is set in place between the corner blocks 11 around its edge and the blocks 12 and 13 at its opposite faces; these blocks having been first set in place in plastic cement as indicated at 28, 24: and 25, Fig. 8. Thereupon the bolts 3 are inserted at the four corners and the housing segments drawn up against each other, with a layer of cement 26, Fig. 8, between the meeting ends of the projections .2. The bolts are insulated by means of the usual tubes and washers of insulating material.

In Figs. 10 and 11 I have shown three single-phase reactors, called A, B and C respectively mounted in a group with the axes of their coils parallel. The nuts or threaded sockets set in the upper ends of the concrete housing are utilized for attaching braces 27 of insulating material between the adjacent reactors.

lln Figs. 12 and 13 another group arrange ment is shown with one reactor B superposed on another, A. The upper reactor is braced and supported b insulators 28 fitting into the nuts or sockets in the top of the lower unit and the bottom of the upper one. Various other arrangements may be made and the reactors arranged in groups which are strongly stayed together through the sockets referred to and through the clamping bolts which pass through the eyes of such socket members.

The winding may be of other types than the disc illustrated. Where I have referred to it as of cylindrical shape it will be understood that this refers to the external shape of the winding or coil taken as a whole and not to any particular type or style or method of forming up the coil.

Though I have described with great particularity 01' detail certain specific embodiments of my invention yet it is not to be understood therefrom that the invention is restricted to the particular embodiments disclosed. Various modifications thereof in detail and in the arrangement of the parts may be made by those skilled in the art without departure from the invention as defined in the following claims.

What ll claim is 1. A reactor including a housing composed of concrete segments formed with recesses, a winding, and insulators of substantially constant dielectric strength held in such recesses and bearing against the winding and insulating the latter from the housing. I

2. A reactor including a winding of oylindrical shape and a concrete housing made in segments of substantially rectangular shape with integral projections at the corners and holding means between said projections and the winding engaging the latter at separate points in its periphery.

3. A reactor including a housing made in segments, a winding held between the segments of the housing, bolts extending axially and clamping said segments together and attaching means for attaching the re- 100 actor to supports or braces, said attaching means engaging said bolts and extending in a transverse direction to a point outside of the housing.

4. A reactor including a housing com- 105 posed of concrete segments formed with recesses, a winding and holding means in such recesses and bearing against the winding when the segments of the housing are clamped together.

5. A reactor including a housing composed of concrete segments formed with axial recesses, a winding and blocks 11 in said recesses extending substantially parallel to the axis and engaging the periphery 116 of the winding for holding the winding in position when the segments are clamped together, said blocks 11 extending across from one of said segments to another.

6. A reactor including a housing com- 120 posed of concrete segments formed with re cesses, a winding and blocks 11 in said recesses for holding the winding in position when the segments are clamped together, said blocks 11 extending across from one 125 of said segments to another, and other holding blocks in planes at right angles to the blocks 11 and bearing against the winding to hold the latter when the segments of the housing are clamped together.

7. A reactor including a housing comthe segments are clamped together and inposed of concrete segments formed with sulatin bushings for the outgoing leads recesses, a multiple layer disc winding, the from 't e windin 10 flat faces of which are held between the In witness wi I said segments, holding blocks interposed signed my name.

between the se ments and the faces of the winding to hol the latter in position when SANDOR I. OESTERREICHER.

ereof, I have hereunto